<p><strong>MK4 to MK4S upgrade <br /></strong></p>
<p>The current lead time is <strong>2-3 weeks </strong>for both xLCD versions.</p>
<table class="table" style="border-collapse: collapse; height: 330.828px; border-style: ridge; width: 100%;" border="1">
<tbody>
<tr style="height: 28.375px;">
<td style="width: 29.0798%; height: 28.375px; border-style: dotted; border-width: 1px; text-align: left;">Order week</td>
<td style="width: 29.2017%; height: 28.375px; border-style: dotted; border-width: 1px; text-align: left;">Order date</td>
<td style="width: 41.7185%; height: 28.375px; border-style: dotted; border-width: 1px; text-align: left;">Shipping estimate</td>
</tr>
<tr style="height: 33.25px;">
<td style="width: 29.0798%; border-style: dotted; border-width: 1px; text-align: left; height: 33.25px;">Week 33</td>
<td style="width: 29.2017%; border-style: dotted; border-width: 1px; text-align: left; height: 33.25px;">starts August 12, 2024</td>
<td style="width: 41.7185%; height: 33.25px; border-style: dotted; border-width: 1px; text-align: left;" rowspan="2">Already shipped</td>
</tr>
<tr style="height: 24.7344px;">
<td style="width: 29.0798%; border-style: dotted; border-width: 1px; text-align: left; height: 24.7344px;">Week 34</td>
<td style="width: 29.2017%; border-style: dotted; border-width: 1px; text-align: left; height: 24.7344px;">starts August 19, 2024</td>
</tr>
<tr style="height: 24.7344px;">
<td style="width: 29.0798%; border-style: dotted; border-width: 1px; text-align: left; height: 24.7344px;">Week 35</td>
<td style="width: 29.2017%; border-style: dotted; border-width: 1px; text-align: left; height: 24.7344px;">starts August 26, 2024</td>
<td style="width: 41.7185%; height: 101.203px; border-style: dotted; border-width: 1px; text-align: left;" rowspan="6">Currently shipping</td>
</tr>
<tr style="height: 24.7344px;">
<td style="width: 29.0798%; border-style: dotted; border-width: 1px; text-align: left; height: 24.7344px;">Week 36</td>
<td style="width: 29.2017%; border-style: dotted; border-width: 1px; text-align: left; height: 24.7344px;">starts September 2, 2024</td>
</tr>
<tr style="height: 27px;">
<td style="width: 29.0798%; border-style: dotted; border-width: 1px; text-align: left; height: 27px;">Week 37</td>
<td style="width: 29.2017%; border-style: dotted; border-width: 1px; text-align: left; height: 27px;">starts September 9, 2024</td>
</tr>
<tr style="height: 30px;">
<td style="width: 29.0798%; border-style: dotted; border-width: 1px; text-align: left; height: 30px;">Week 38</td>
<td style="width: 29.2017%; border-style: dotted; border-width: 1px; text-align: left; height: 30px;">starts September 16, 2024</td>
</tr>
<tr style="height: 27px;">
<td style="width: 29.0798%; border-style: dotted; border-width: 1px; text-align: left; height: 27px;">Week 39</td>
<td style="width: 29.2017%; border-style: dotted; border-width: 1px; text-align: left; height: 27px;">starts September 23, 2024</td>
</tr>
<tr style="height: 27px;">
<td style="width: 29.0798%; border-style: dotted; border-width: 1px; text-align: left; height: 27px;">Week 40</td>
<td style="width: 29.2017%; border-style: dotted; border-width: 1px; text-align: left; height: 27px;">starts September 30, 2024</td>
</tr>
<tr style="height: 21px;">
<td style="width: 29.0798%; border-style: dotted; border-width: 1px; text-align: left; height: 21px;">Week 41</td>
<td style="width: 29.2017%; border-style: dotted; border-width: 1px; text-align: left; height: 21px;">starts October 7, 2024</td>
<td style="width: 41.7185%; border-style: dotted; border-width: 1px; text-align: left; height: 84px;" rowspan="3">From week 47 (starts November 18, 2024)</td>
</tr>
<tr style="height: 21px;">
<td style="width: 29.0798%; border-style: dotted; border-width: 1px; text-align: left; height: 21px;">Week 42</td>
<td style="width: 29.2017%; border-style: dotted; border-width: 1px; text-align: left; height: 21px;">starts October 14, 2024</td>
</tr>
<tr style="height: 21px;">
<td style="width: 29.0798%; border-style: dotted; border-width: 1px; text-align: left; height: 21px;">Week 43</td>
<td style="width: 29.2017%; border-style: dotted; border-width: 1px; text-align: left; height: 21px;">starts October 21, 2024</td>
</tr>
<tr style="height: 21px;">
<td style="width: 29.0798%; border-style: dotted; border-width: 1px; text-align: left; height: 21px;">Week 44</td>
<td style="width: 29.2017%; border-style: dotted; border-width: 1px; text-align: left; height: 21px;">starts October 28, 2024</td>
<td style="width: 41.7185%; border-style: dotted; border-width: 1px; text-align: left;" rowspan="3">From week 48 (starts November 25, 2024)</td>
</tr>
<tr>
<td style="width: 29.0798%; border-style: dotted; border-width: 1px; text-align: left;">Week 45</td>
<td style="width: 29.2017%; border-style: dotted; border-width: 1px; text-align: left;">starts November 4, 2024</td>
</tr>
<tr>
<td style="width: 29.0798%; border-style: dotted; border-width: 1px; text-align: left;">Week 46</td>
<td style="width: 29.2017%; border-style: dotted; border-width: 1px; text-align: left;">starts November 11, 2024</td>
</tr>
</tbody>
</table>
<p></p>
<p> </p>
<h3><span style="font-size: 20px;">Current lead time estimates for new orders</span></h3>
<p><span style="color: #e67e23;"><strong>Updated: November 11th, 2024 </strong></span></p>
<p><em>The dates are only an estimation at the date of update, specified above, and rely on the actual</em> production. <em>We're doing our best but please be aware that it can shift for the lead time products. We will update here and on the product pages accordingly.</em></p>
<p>The lead time estimate applies to standalone products, other products in the order may increase the lead time.</p>
<p>If you've ordered a product in a bundle, the lead time of the order is set based on the product in the bundle with the longest lead time.</p>
<p> </p>
<p></p>
<table class="table" style="border-collapse: collapse; height: 765.922px; border-style: ridge; width: 100%;" border="1">
<tbody>
<tr style="height: 27.922px;">
<td style="height: 27.922px; width: 48.3436%; border-style: dotted; border-width: 1px; text-align: center;">
<h4>Product</h4>
</td>
<td style="height: 27.922px; width: 51.6564%; border-style: dotted; border-width: 1px; text-align: center;">
<h4>Lead time</h4>
</td>
</tr>
<tr style="height: 72px;">
<td style="width: 48.3436%; border-style: dotted; border-width: 1px; text-align: center; height: 72px;">
<p><strong>Original Prusa XL Enclosure<br /></strong><em>(standalone)</em><strong><br /></strong></p>
</td>
<td style="width: 51.6564%; border-style: dotted; border-width: 1px; text-align: center; height: 72px;">
<p><strong>In stock</strong></p>
</td>
</tr>
<tr style="height: 72px;">
<td style="width: 48.3436%; border-style: dotted; border-width: 1px; text-align: center; height: 72px;">
<p><strong>Advanced Filtration System <br /></strong>(for Original Prusa Enclosure)</p>
</td>
<td style="width: 51.6564%; border-style: dotted; border-width: 1px; text-align: center; height: 72px;">
<p><strong>In stock</strong></p>
</td>
</tr>
<tr style="height: 72px;">
<td style="width: 48.3436%; border-style: dotted; border-width: 1px; text-align: center; height: 72px;">
<p><strong>MK4 to MK4S upgrade<br /></strong>/MK4S upgrade for versions with old xLCD</p>
</td>
<td style="width: 51.6564%; border-style: dotted; border-width: 1px; text-align: center; height: 72px;">
<p><strong>2-3 weeks</strong></p>
</td>
</tr>
<tr style="height: 72px;">
<td style="width: 48.3436%; border-style: dotted; border-width: 1px; text-align: center; height: 72px;">
<p><strong>MK3.9 to MK3.9S upgrade</strong></p>
</td>
<td style="width: 51.6564%; border-style: dotted; border-width: 1px; text-align: center; height: 72px;">
<p><strong>In stock</strong></p>
</td>
</tr>
<tr style="height: 51px;">
<td style="width: 48.3436%; border-style: dotted; border-width: 1px; text-align: center; height: 51px;">
<p><strong>MK3S/+ to MK4S upgrade</strong></p>
</td>
<td style="width: 51.6564%; border-style: dotted; border-width: 1px; text-align: center; height: 51px;">
<p><strong>2-3 weeks</strong></p>
</td>
</tr>
<tr>
<td style="width: 48.3436%; border-style: dotted; border-width: 1px; text-align: center;">
<p><strong>MK3S/+ to MK3.9S upgrade</strong></p>
</td>
<td style="width: 51.6564%; border-style: dotted; border-width: 1px; text-align: center;">
<p><strong>In stock</strong></p>
</td>
</tr>
<tr style="height: 51px;">
<td style="width: 48.3436%; border-style: dotted; border-width: 1px; text-align: center; height: 51px;">
<p><strong>MK3S/+ to MK3.5S upgrade</strong></p>
</td>
<td style="width: 51.6564%; border-style: dotted; border-width: 1px; text-align: center; height: 51px;">
<p><strong>In stock</strong></p>
</td>
</tr>
<tr style="height: 72px;">
<td style="width: 48.3436%; border-style: dotted; border-width: 1px; text-align: center; height: 72px;">
<p><strong>Original Prusa MMU3 upgrade kit (for MK4S/MK3.9S)</strong></p>
</td>
<td style="width: 51.6564%; border-style: dotted; border-width: 1px; text-align: center; height: 72px;">
<p><strong>1-2 weeks</strong></p>
</td>
</tr>
<tr style="height: 51px;">
<td style="width: 48.3436%; border-style: dotted; border-width: 1px; text-align: center; height: 51px;">
<p><strong>MMU3 assembled unit (for MK4S/MK3.9S) </strong></p>
</td>
<td style="width: 51.6564%; border-style: dotted; border-width: 1px; text-align: center; height: 51px;">
<p><strong>1-2 weeks</strong></p>
</td>
</tr>
<tr style="height: 51px;">
<td style="width: 48.3436%; border-style: dotted; border-width: 1px; text-align: center; height: 51px;">
<p><strong>MMU3 assembled unit (for MK4/MK3.9)</strong></p>
</td>
<td style="width: 51.6564%; border-style: dotted; border-width: 1px; text-align: center; height: 51px;">
<p><strong>In stock</strong></p>
</td>
</tr>
<tr style="height: 51px;">
<td style="width: 48.3436%; border-style: dotted; border-width: 1px; text-align: center; height: 51px;">
<p><strong>MMU3 assembled unit (for MK3.5S/MK3.5) </strong></p>
</td>
<td style="width: 51.6564%; border-style: dotted; border-width: 1px; text-align: center; height: 51px;">
<p><strong>In stock</strong></p>
</td>
</tr>
<tr style="height: 51px;">
<td style="width: 48.3436%; border-style: dotted; border-width: 1px; text-align: center; height: 51px;">
<p><strong>MMU3 assembled unit (for MK3S+) </strong></p>
</td>
<td style="width: 51.6564%; border-style: dotted; border-width: 1px; text-align: center; height: 51px;">
<p><strong>In stock</strong></p>
</td>
</tr>
<tr style="height: 72px;">
<td style="width: 48.3436%; border-style: dotted; border-width: 1px; text-align: center; height: 72px;">
<p><strong>Original Prusa MMU2S to MMU3 upgrade<br />for MK4S/MK3.9S</strong></p>
</td>
<td style="width: 51.6564%; border-style: dotted; border-width: 1px; text-align: center; height: 72px;">
<p><strong>1-2 weeks</strong></p>
</td>
</tr>
</tbody>
</table>
<p>You can find your order shipping date in the order detail section in our shop.</p>
<div class="note-callout">All products purchased in our <a href="https://shop.prusa3d.com/">online store</a> are currently being shipped from the<strong> Czech Republic, </strong>a member state of the <strong>European Union, customs charges may apply for shipments to countries outside of the EU!</strong> Please see our advisory article <a href="http://help.prusa3d.com/article/vat-value-added-tax-customs-fees_1505#orders-outside-eu">here</a>.</div>

Shipping information

Infill patterns

<div><strong><img decoding="async" loading="lazy" style="float: right;" src="https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-prusa-orange-1kg.jpg" sizes="100vw" srcset="https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-prusa-orange-1kg-400x400.jpg 400w, https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-prusa-orange-1kg-600x600.jpg 600w, https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-prusa-orange-1kg-300x300.jpg 300w, https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-prusa-orange-1kg-768x768.jpg 768w" alt="" width="225" height="225"></strong></div>
<h3>Basic info</h3>
<div><strong>PETG</strong> is one of the most easily printable materials, it is <strong>inexpensive and suitable for beginners</strong>. Relatively high tenacity and temperature resistance make it <strong>suitable for printing technical parts</strong> (for example parts of our printers).</div>
<div>&nbsp;</div>
<div><strong>Recommended nozzle temperature:</strong> 230 °C for the first layer, 240 °C for the other layers</div>
<div>&nbsp;</div>
<div><strong>Recommended bed temperature:</strong> 85 °C for the first layer, 90 °C for the other layers</div>
<div>&nbsp;</div>
<div><strong>Heatbed:</strong> Using powder-coated TXT or satin sheet is highly recommended. Printing on smooth PEI surface might damage the sheet.</div>
<h3>Description</h3>
<div>
<p><a href="https://www.prusa3d.com/category/prusament-petg/"><strong data-stringify-type="bold">PETG</strong></a> (Polyethylene Terephthalate modified with Glycol) is a commonly used technical material, popular among 3D printer users for its <strong>low price and good printability</strong>. It’s tenacious, with good temperature resistance; PETG is most commonly used for printing various mechanical parts, holders, clamps, and waterproof parts (thanks to great layer adhesion).</p>
<p>PETG has a glossy surface, adheres greatly to a print sheet, and <strong>does not shrink or warp</strong> (it has very little thermal expansion), therefore it’s suitable for printing large models. Plus, its high tenacity and flexibility often <strong>prevent it from breaking.</strong> Due to good temperature resistance, PETG parts are suitable both for interior and most exterior use (with temperatures below 80 °C). <strong>Parts of our printers are made of PETG!</strong></p>
<p>The letter G in PETG means that it’s modified with glycol during the manufacturing process. Glycol makes PET less brittle, easier to print, and more transparent for translucent prints. Of course, you can print also with PET filaments without glycol. However, printing with only PET is challenging and does not offer any advantage whatsoever.</p>
<div class="warning-callout">Even though PETG in itself may be considered <a href="http://help.prusa3d.com/article/food-safe-fdm-printing_112313">food-safe</a>, it consists of layers, as every 3D print, in which bacteria can grow over time. You can prevent this by applying a <strong>food-safe(epoxy) coating.</strong> Also, a stainless-steel nozzle should be used for if food is the intended application.</div>
<p>Although <strong>PETG</strong> is frequently used in <strong>food industry</strong> and is considered <strong>food-safe</strong>, we do not recommend it (or any other filament) for printing dishes or other stuff that comes into direct contact with food. The main reason is tiny print layer surface grooves that can support numerous bacterial colonies. But if you still want 3D printed dishes, we suggest <strong>applying a special layer</strong> that seals the surface (food-safe coating) and printing with a clean steel nozzle.</p>
<p>Some of the manufacturers <strong>enrich PETG with various additives</strong> and sell these materials under different names. For example, Spoolworks EDGE by E3D is modified PET/Copolyester Blend with additives. The goal is to acquire better visual qualities, surface and layer adhesion, etc.</p>
<p>To compare supported material properties, see our <a href="https://help.prusa3d.com/en/materials">material table.</a></p>
</div>
<table class="striped">
<tbody>
<tr>
<th>
<p>Pros</p>
</th>
<th>
<p>Cons</p>
</th>
</tr>
<tr>
<td>
<p>✔ Easy to print</p>
</td>
<td>
<p>✖ Possibility of stringing</p>
</td>
</tr>
<tr>
<td>
<p>✔ Good layer adhesion</p>
</td>
<td>
<p>✖ Poor bridging and overhangs</p>
</td>
</tr>
<tr>
<td>
<p>✔ Tough and durable</p>
</td>
<td>
<p>✖ Not great for printing detailed parts</p>
</td>
</tr>
<tr>
<td>
<p>✔ Low warping</p>
</td>
<td>
<p>✖ Bonds strongly to the print surface</p>
</td>
</tr>
<tr>
<td>✔ High temperature-resistance</td>
<td>
<p>✖ Soluble in dangerous chemicals</p>
</td>
</tr>
<tr>
<td>✔ Water and humidity resistant</td>
<td>
<p>✖ Supports are hard to remove</p>
</td>
</tr>
</tbody>
</table>
<h3>Best use</h3>
<p>PETG is used universally but is especially suitable for mechanical parts for both indoor and outdoor use. We use PETG to print parts for our printers! Plastic bottles are also made from this kind of material.</p>
<h3>Tips for successful printing</h3>
<p><strong>Temperature settings and cooling</strong></p>
<p>Unlike PLA, <strong>PETG requires a heated bed (85 °C).</strong> Its bridging- and overhang-behavior is usually worse, plus it is prone to stringing. Stringing can be moderated with higher retractions and lower nozzle temperature, but we suggest <strong>using the PrusaSlicer profiles that should work fine.</strong> It’s important to <strong>cool the PETG print</strong> - this helps to keep the model detailed and prevents stringing and oozing. But if you want the model to be as tough as possible, try to turn off the print fan. Higher filament temperature improves merging between layers which leads to better mechanical resistance. Otherwise, we recommend printing the first few layers with the print fan off to prevent deformation, then with the fan running at half its power.</p>
<div class="warning-callout"><strong>Do not print on the smooth PEI sheet</strong> as the adhesion may be too strong!</div>
<p><strong>Print surface preparation</strong></p>
<p>Make sure the print surface is clean, as described in <a href="http://help.prusa3d.com/article/first-layer-issues_1804">our dedicated article</a>. It is advisable to use one of the <strong>powder-coated print sheets. Do not print on the smooth PEI sheet</strong> as the adhesion may be too strong! If you decide to use the smooth PEI sheet anyway, apply a glue stick on it before printing.</p>
<p><strong>Adding more perimeters for more solid parts</strong></p>
<p>If you want to print truly solid parts, <strong>try to increase the number of perimeters</strong> instead of adding more infill.</p>
<h3>Postprocessing</h3>
<p>PETG can be easily sanded both dry and wet.</p>
<p><strong>Dissolving PETG</strong></p>
<p><strong>Dissolving and smoothing PETG</strong> is possible only in a laboratory by skilled lab workers using <strong>dangerous chemicals</strong> (Dichloromethane).</p>
<h3>Sample prints</h3>
<table style="border-collapse: collapse; width: 100%; height: 954px;" border="0">
<tbody>
<tr style="height: 300px;">
<td style="width: 48.805%; height: 300px;"><img decoding="async" loading="lazy" src="https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-prusa-orange-1kg-1-1.jpg" sizes="100vw" srcset="https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-prusa-orange-1kg-1-1-400x400.jpg 400w, https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-prusa-orange-1kg-1-1-600x600.jpg 600w, https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-prusa-orange-1kg-1-1-300x300.jpg 300w, https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-prusa-orange-1kg-1-1-768x768.jpg 768w" alt="" width="800" height="800"></td>
<td style="width: 48.805%; height: 300px;"><img decoding="async" loading="lazy" src="https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-jet-black-1kg.jpg" sizes="100vw" srcset="https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-jet-black-1kg-400x400.jpg 400w, https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-jet-black-1kg-600x600.jpg 600w, https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-jet-black-1kg-300x300.jpg 300w, https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-jet-black-1kg-768x768.jpg 768w" alt="" width="800" height="800"></td>
</tr>
<tr style="height: 18px;">
<td style="width: 48.805%; height: 18px; text-align: center;"><em>MMU (Multi-Material Unit)</em></td>
<td style="width: 48.805%; height: 18px; text-align: center;"><em>Electronics cover and other printer parts</em></td>
</tr>
<tr style="height: 300px;">
<td style="width: 48.805%; height: 300px;"><img decoding="async" loading="lazy" src="https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-prusa-orange-1kg-2.jpg" sizes="100vw" srcset="https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-prusa-orange-1kg-2-400x400.jpg 400w, https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-prusa-orange-1kg-2-600x600.jpg 600w, https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-prusa-orange-1kg-2-300x300.jpg 300w, https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-prusa-orange-1kg-2-768x768.jpg 768w" alt="" width="800" height="800"></td>
<td style="width: 48.805%; height: 300px;"><img decoding="async" loading="lazy" src="https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-prusa-orange-1kg-3.jpg" sizes="100vw" srcset="https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-prusa-orange-1kg-3-400x400.jpg 400w, https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-prusa-orange-1kg-3-600x600.jpg 600w, https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-prusa-orange-1kg-3-300x300.jpg 300w, https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-prusa-orange-1kg-3-768x768.jpg 768w" alt="" width="800" height="800"></td>
</tr>
<tr style="height: 18px;">
<td style="width: 48.805%; height: 18px; text-align: center;"><em>Ukulele</em></td>
<td style="width: 48.805%; height: 18px; text-align: center;"><em>Various mechanical parts</em></td>
</tr>
<tr style="height: 300px;">
<td style="width: 48.805%; height: 300px; text-align: center;"><img decoding="async" loading="lazy" src="https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-urban-grey-1kg-1.jpg" sizes="100vw" srcset="https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-urban-grey-1kg-1-400x400.jpg 400w, https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-urban-grey-1kg-1-600x600.jpg 600w, https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-urban-grey-1kg-1-300x300.jpg 300w, https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-urban-grey-1kg-1-768x768.jpg 768w" alt="" width="800" height="800"></td>
<td style="width: 48.805%; height: 300px; text-align: center;"><img decoding="async" loading="lazy" src="https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-urban-grey-1kg.jpg" sizes="100vw" srcset="https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-urban-grey-1kg-400x400.jpg 400w, https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-urban-grey-1kg-600x600.jpg 600w, https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-urban-grey-1kg-300x300.jpg 300w, https://cdn.help.prusa3d.com/wp-content/uploads/prusament-petg-urban-grey-1kg-768x768.jpg 768w" alt="" width="800" height="800"></td>
</tr>
<tr style="height: 18px;">
<td style="width: 48.805%; height: 18px; text-align: center;"><em>Electronic parts</em></td>
<td style="width: 48.805%; height: 18px; text-align: center;"><em>Boxes and organizers</em></td>
</tr>
</tbody>
</table>


PETG

Different nozzle types

<p>Prusa Connect and PrusaLink are two remote printing solutions developed in-house by Prusa. Its origin is in the management system used in our <a href="https://blog.prusaprinters.org/guinness-world-records-1096-original-prusa-3d-printers-running-at-the-same-time_30677/">record-sized print farm located in Prague HQ.</a></p>
<ul>
<ul>
<li><strong>Prusa Connect</strong> is a cloud service for remote printing available from anywhere.</li>
<li><strong>PrusaLink</strong>* is the client-side running locally on your printer, accessible from local network</li>
</ul>
</ul>
<p><em>*formerly known as Prusa Connect Local</em></p>
<p> </p>
<h2>What is Prusa Connect?</h2>
<p>Prusa Connect (<a href="http://connect.prusa3d.com">connect.prusa3d.com</a>) allows you to control your individual printers or even manage a print farm from anywhere in the world.</p>
<p style="text-align: center;"><img decoding="async" src="https://cdn.help.prusa3d.com/wp-content/uploads/2023/08/9f18d1552ef82ea7ef4960a43a86a17b.png" sizes="(min-width: 1024px) 820px, 100vw" srcset="Prusa Connect and PrusaLink explained" alt="" width="900" height="607" loading="lazy" /></p>
<p style="text-align: center;"><em>Example of Prusa Connect interface (cloud service)</em></p>
<p> </p>
<p>It is available for free to the owners of selected Original Prusa printers (see the list below). You get a free 1 GB of cloud storage for your G-codes and telemetric data. The full list of features and pricing for end customers or businesses will be announced later on.</p>
<p>Furthermore, Prusa Connect is able to monitor the use of each printer individually, providing valuable statistics of your production environment. </p>
<p> </p>
<h2>What is PrusaLink?</h2>
<p>Much like <a href="http://help.prusa3d.com/article/about-octoprint_1790">Octoprint</a>, this remote printer-management system runs locally on your Original Prusa printer.</p>
<p><img decoding="async" src="https://cdn.help.prusa3d.com/wp-content/uploads/2023/01/12af6bd49830e088.jpg" sizes="(min-width: 1024px) 820px, 100vw" srcset="PrusaLink and Prusa Connect explained" alt="" width="1451" height="800" loading="lazy" /></p>
<p style="text-align: center;"><em>Example of PrusaLink interface (local network)</em></p>
<p> </p>
<p>Its main goal is to provide communication between your printer and the Prusa Connect cloud. The secondary function is to provide a web interface, which can be used on your local (home) network only. Simply paste the printer's IP address into your web browser to access it. Using PrusaLink alone you can monitor your printer, upload G-codes, start or cancel a print. </p>
<p> </p>
<h2>How to install and configure PrusaLink and Prusa Connect?</h2>
<p>To use the Prusa Connect, you have to first set up the PrusaLink on your printer. The guides below will take you to step by step through the entire process.</p>
<table class="striped" style="width: 100%; height: 135.328125px;">
<tbody>
<tr style="height: 21.109375px;">
<td style="width: 34.722272%; height: 21.109375px;"><strong>FDM printers</strong></td>
<td style="width: 32.026194%; height: 21.109375px;"><strong>PrusaLink</strong></td>
<td style="width: 33.374233%; height: 21.109375px;"><strong>Prusa Connect</strong></td>
</tr>
<tr style="height: 18px;">
<td style="width: 34.722272%; height: 18px;">Original Prusa<strong> MK4/S, MK3.9/S, MK3.5/S</strong></td>
<td style="width: 32.026194%; height: 18px;"><a href="http://help.prusa3d.com/guide/wi-fi-and-prusalink-setup-mk4-mk3-9-mk3-5-xl-mini_413293">built-in</a></td>
<td style="width: 33.374233%; height: 18px;"><a href="http://help.prusa3d.com/guide/adding-the-printer-to-prusa-connect-mk4-s-mk3-9-s-mk3-5-s-xl-mini_417586">Available</a></td>
</tr>
<tr style="height: 36px;">
<td style="width: 34.722272%; height: 36px;">Original Prusa i3 <strong>MK3/S/+</strong></td>
<td style="width: 32.026194%; height: 36px;"><a href="http://help.prusa3d.com/guide/prusalink-and-prusa-connect-setup-mk3-s-_221744">via RPi / RPi Zero (GPIO</a>/<a href="http://help.prusa3d.com/guide/prusalink-prusa-connect-with-rpi-3-4-usb-mk2-5-s-mk3-s-_469341">USB)</a></td>
<td style="width: 33.374233%; height: 36px;"><a href="http://help.prusa3d.com/guide/prusalink-and-prusa-connect-setup-mk3-s-_221744">Available</a></td>
</tr>
<tr style="height: 18px;">
<td style="width: 34.722272%; height: 18px;">Original Prusa i3 <strong>MK2.5/S</strong></td>
<td style="width: 32.026194%; height: 18px;"><a href="http://help.prusa3d.com/guide/prusalink-prusa-connect-with-rpi-3-4-usb-mk2-5-s-mk3-s-_469341">via RPi (USB)</a></td>
<td style="width: 33.374233%; height: 18px;"><a href="http://help.prusa3d.com/guide/prusalink-prusa-connect-with-rpi-3-4-usb-mk2-5-s-mk3-s-_469341">Available</a></td>
</tr>
<tr style="height: 21.109375px;">
<td style="width: 34.722272%; height: 21.109375px;">Original Prusa <strong>XL</strong></td>
<td style="width: 32.026194%; height: 21.109375px;"><a href="http://help.prusa3d.com/guide/wi-fi-and-prusalink-setup-mk4-mk3-9-mk3-5-xl-mini_413293">built-in</a></td>
<td style="width: 33.374233%; height: 21.109375px;"><a href="http://help.prusa3d.com/guide/adding-the-printer-to-prusa-connect-mk4-s-mk3-9-s-mk3-5-s-xl-mini_417586">Available</a></td>
</tr>
<tr style="height: 21.109375px;">
<td style="width: 34.722272%; height: 21.109375px;">Original Prusa <strong>MINI / MINI +</strong></td>
<td style="width: 32.026194%; height: 21.109375px;"><a href="http://help.prusa3d.com/guide/installing-wi-fi-and-prusalink-mini-_316781">built-in</a></td>
<td style="width: 33.374233%; height: 21.109375px;"><a href="http://help.prusa3d.com/guide/adding-the-printer-to-prusa-connect-mk4-s-mk3-9-s-mk3-5-s-xl-mini_417586">Available</a></td>
</tr>
</tbody>
</table>
<p> </p>
<table class="striped">
<tbody>
<tr>
<td style="width: 32.158%;"><strong>SLA printers</strong></td>
<td style="width: 32.158%;"><strong>PrusaLink</strong></td>
<td style="width: 32.162%;"><strong>Prusa Connect</strong></td>
</tr>
<tr>
<td style="width: 32.158%;">Original Prusa <strong>SL1S SPEED</strong></td>
<td style="width: 32.158%;"><a href="http://help.prusa3d.com/article/prusalink-sl1-sl1s_146094">built-in</a></td>
<td style="width: 32.162%;">TBA (work in progress)</td>
</tr>
<tr>
<td style="width: 32.158%;">Original Prusa <strong>SL1</strong></td>
<td style="width: 32.158%;"><a href="http://help.prusa3d.com/article/prusalink-sl1-sl1s_146094">built-in</a></td>
<td style="width: 32.162%;">TBA (work in progress)</td>
</tr>
</tbody>
</table>
<p> </p>
<h3>Next-gen Original Prusa printers</h3>
<p>Such as the<strong> MK4/S, MK3.9/S, MK3.5/S, XL, MINI/+, SL1/SL1S </strong> as well as the other upcoming models have the PrusaLink built-in. You can connect the printer either using Wi-Fi or a wired LAN (Ethernet) network. Note that on MINI/+, you have to first <a href="http://help.prusa3d.com/guide/installing-wi-fi-and-prusalink-mini-_316781">install the Wi-Fi module</a> to use the wireless functionality.</p>
<ul>
<li><a href="http://help.prusa3d.com/guide/wi-fi-and-prusalink-setup-mk4-mk3-9-mk3-5-xl-mini_413293">Wi-Fi and PrusaLink setup (MK4, MK3.9, MK3.5, XL, MINI/+)</a></li>
<li><a href="http://help.prusa3d.com/guide/adding-the-printer-to-prusa-connect-mk4-s-mk3-9-s-mk3-5-s-xl-mini_417586">Adding the printer to Prusa Connect (MK4, MK3.9, MK3.5, XL, MINI/+)</a> </li>
<li><a href="http://help.prusa3d.com/guide/installing-wi-fi-and-prusalink-mini-_316781">Installing Wi-Fi and PrusaLink (MINI/+)</a></li>
<li><a href="http://help.prusa3d.com/article/prusalink-sl1-sl1s_146094">PrusaLink (SL1/S)</a></li>
</ul>
<p> </p>
<h3>Original Prusa i3 MK3/S/+ or MK2.5/S</h3>
<p>In this case, the PrusaLink name also refers to the required hardware solution of a Raspberry Pi (RPi). These printers don't have enough performance, therefore additional hardware is required. PrusaLink is a replacement for the discontinued <a href="http://help.prusa3d.com/article/prusaprint-rpi-zero-and-octoprint_2180">PrusaPrint solution</a> (Octoprint and the RPi Zero W).</p>
<h4>Which Raspberry Pi should I get for my i3 (MK3/S/+ or MK2.5/S)?</h4>
<p>For your MK3/S/+, you need to get a Raspberry Pi (RPi) to make the PrusaLink and Prusa Connect work. The supported RPi boards are listed below and if you are about to purchase a new one, it is highly recommended to seek the latest generation, as the older ones might be slower.</p>
<p>On MK3/S/+, you can attach the RPi Zero <a href="http://help.prusa3d.com/guide/prusalink-and-prusa-connect-setup-mk3-s-_221744">directly onto the printer’s mainboard</a> or use the <a href="http://help.prusa3d.com/guide/prusalink-prusa-connect-with-rpi-3-4-usb-mk2-5-s-mk3-s-_469341">USB connection</a>.<br />On MK2.5/S, you have to use the <a href="http://help.prusa3d.com/guide/prusalink-prusa-connect-with-rpi-3-4-usb-mk2-5-s-mk3-s-_469341">USB connection</a> to the RPi. Then, the PrusaLink and PrusaConnect setup is fairly similar to the MK3/S/+.</p>
<p>Since the RPi doesn't have internal storage, you need to get a MicroSD card. Recommended SD card: Micro SD, SDHC standard, Class 10, 8GB or more. Preferably, choose a name-brand card known to work with RPi. Do backups regularly as even a name-brand card doesn’t guarantee you won’t lose your data. </p>
<p><strong>Supported boards (GPIO connection on Einsy Rambo)</strong></p>
<ul>
<li>Raspberry Pi Zero 2 W</li>
<li>Raspberry Pi Zero W</li>
</ul>
<p><strong>Supported boards (USB connection)</strong></p>
<ul>
<li>Raspberry Pi 4</li>
<li>Raspberry Pi 3+</li>
<li>Raspberry Pi 3</li>
</ul>
<p><strong>Unsupported boards</strong></p>
<ul>
<li>Raspberry Pi Zero (without Wi-Fi) and older</li>
<li>Raspberry Pi 2 and older</li>
</ul>
<div class="warning-callout"><strong>What not to do while RPi Zero W/2 is connected and the printer is powered up:<br /></strong><br />- Don't move any of the printer's axes by hand! Use the Move Axis menu only.<br />- Don't connect or disconnect the RPi.<br />- Don't insert or remove the microSD card inside the RPi.<br />- Don't touch the RPi board.<br />- For connecting or powering the RPi, don't use any other methods than the ones endorsed by Prusa.<br />- Only follow the guidance from the official documentation issued by Prusa Research.<br />- Prusa Research is not responsible for any damage done by or caused to third-party hardware.</div>
<p> </p>
<ul>
<li><a href="http://help.prusa3d.com/guide/prusalink-and-prusa-connect-setup-mk3-s-_221744">PrusaLink and Prusa Connect setup (MK3/S/+)</a></li>
<li><a href="http://help.prusa3d.com/guide/prusalink-prusa-connect-with-rpi-3-4-usb-mk2-5-s-mk3-s-_469341">PrusaLink/Prusa Connect with RPi 3/4 (MK2.5/S MK3/S/+)</a></li>
<li><a href="http://help.prusa3d.com/guide/how-to-update-prusalink-mk2-5-s-mk3-s-_650837">How to update PrusaLink (MK2.5/S MK3/S/+)</a></li>
</ul>
<h3><strong>Other guides related to Prusa Connect and PrusaLink:</strong></h3>
<ul>
<li><a href="http://help.prusa3d.com/guide/camera-setup-for-prusalink-prusa-connect_470943">Camera setup for PrusaLink / Prusa Connect</a></li>
<li><a href="http://help.prusa3d.com/article/camera-compatibility-rpi-prusalink_654918">Camera compatibility (RPi + PrusaLink)</a></li>
<li><a href="http://help.prusa3d.com/guide/esp-camera-for-prusa-connect_390199">ESP Camera for Prusa Connect</a></li>
<li><a href="http://help.prusa3d.com/guide/sending-files-from-prusaslicer-to-prusalink_222961">Sending files from PrusaSlicer to PrusaLink</a></li>
<li><a href="http://help.prusa3d.com/article/sending-g-codes-to-printer-via-network-prusaconnect-prusalink-octoprint_196761">Sending files from PrusaSlicer to printer via network (Prusa Connect, PrusaLink, Octoprint)</a></li>
<li><a href="http://help.prusa3d.com/guide/prusa-connect-telegram-notifications-setup_529662">Prusa Connect - Telegram notifications setup</a></li>
<li><a href="http://help.prusa3d.com/guide/prusa-connect-discord-notifications-setup_536115">Prusa Connect - Discord notifications setup</a></li>
<li><a href="http://help.prusa3d.com/guide/prusa-connect-slack-notifications-setup_536172">Prusa Connect - Slack notifications setup</a></li>
</ul>
<p> </p>
<ul>
<li><a href="http://help.prusa3d.com/article/how-to-set-a-static-ip-address_695648">How to set a static IP Address</a></li>
<li><a href="http://help.prusa3d.com/article/how-to-connect-to-rpi-via-ssh_658030">How to connect to RPi via SSH</a></li>
<li><a href="http://help.prusa3d.com/article/connecting-original-prusa-sl1-sl1s-to-prusaslicer_133977">Connecting SL1/S to PrusaSlicer</a></li>
<li><a href="http://help.prusa3d.com/article/internet-connection-sl1-sl1s_1981">Internet Connection (SL1/S)</a></li>
<li><a href="http://help.prusa3d.com/guide/wi-fi-and-prusalink-setup-xl-firmware-up-to-4-7-5_419630">Wi-Fi and PrusaLink setup (XL firmware up to 4.7.5)</a></li>
<li><a href="http://help.prusa3d.com/guide/adding-the-printer-to-prusa-connect-xl-firmware-up-to-4-7-5_420001">Adding the printer to Prusa Connect (XL firmware up to 4.7.5)</a></li>
<li><a href="http://help.prusa3d.com/article/prusa-connect-local-mini_133279">Prusa Connect Local (Firmware 4.0.5 - 4.3.4, via Ethernet, Obsolete guide) (MINI/+)</a> <br /> <br />  </li>
</ul>
<h3>Octoprint / Other / 3rd-party projects:</h3>
<ul>
<li><a href="http://help.prusa3d.com/guide/octoprint-setup-on-mk4-s-mk3-9-s-mk3-5-s-xl_646395">Octoprint setup ( MK4 / MK3.9 / MK3.5 / XL )</a></li>
<li><a href="http://help.prusa3d.com/article/octoprint-configuration-and-install_2182">Octoprint Configuration and install (MK2.5/S MK3/S/+)</a></li>
<li><a href="http://help.prusa3d.com/article/about-octoprint_1790">About Octoprint</a></li>
<li><a href="https://github.com/prusa3d/Prusa-Firmware-ESP32-Cam">ESP32 Cam for Prusa Connect (GitHub)</a></li>
</ul>


Prusa Connect and PrusaLink explained

Original Prusa XL Single-Tool (Assembled)

Original Prusa XL Single-Tool (Semi-Assembled)

Original Prusa XL Dual-Head (Assembled)

Original Prusa XL Dual-Head (Semi-Assembled)

Original Prusa XL Five-Head (Assembled)

Original Prusa XL Five-Head (Semi-Assembled)

Original Prusa XL Single-Tool to Five-Head Upgrade

Original Prusa XL Single-Tool to Dual-Head Upgrade

Original Prusa XL Dual-Head to Five-Head Upgrade

Original Prusa XL Enclosure

Assembly manuals

Basic calibration

Advanced calibration

All information you need to know to learn how to calibrate your 3D printer to achieve perfect prints.

Calibration

Printer description

Printer features

FAQs and other useful information you might be interested in before or after making your purchase at shop.prusa3d.com

General Information

Basic overview of your 3D printer and it's features, plus general Prusa Research info.

About your printer

3D models

Material guide

Printer maintenance

Prusa Connect & PrusaLink

In this section, you can find material guides, printer troubleshooting and general info about using your printer.

Using the printer

Print Quality Troubleshooting

QR Error codes

Printer troubleshooting

Description of how to recognize and solve common problems, especially hardware and electronics related.

Troubleshooting

Nozzles

Octoprint

Learn about different nozzles, Raspberry Pi connection, Octoprint and more.

3rd party accessories & Other projects

About PrusaSlicer

Configuration and profiles

User interface

Input/output

Top toolbar

Print settings

Filament settings

Advanced features

The official documentation for the PrusaSlicer slicing software. From basic configuration to advanced settings like modifier meshes.

PrusaSlicer

1. Introduction

2. Printer preparing

2. Base & Side frame assembly

2. Printer unboxing

2. Enclosure assembly

3. Printer upgrade

3. CoreXY & Back assembly

3. Printer set up

3. Nextruder disassembly

3. Detaching the Nextruder

4. Heatbed & Side panels assembly

4. PSU & electronics assembly

4. Nextruder upgrade (Multi-Tool)

4. Nextruder upgrade

4. ToolChanger assembly

5. Nextruder upgrade (Single-Tool)

5. Nextruder & accessories assembly

5. Tool-changer assembly

5. Extruder & accessories assembly

5. First run

5. ToolChanger assembly

5. Nextruder upgrade

Manual changelog XL Dual-Head (Semi-Assembled)

6. First run

6. Extruder & accessories assembly

6. Enclosure secure

Manual changelog Five-Head (Assembled)

4. First run

6. Nextruder & accessories assembly

Manual changelog XL Enclosure kit

Manual changelog XL Dual-Head (Assembled)

Manual changelog

7. First run

6. PSU & electronics assembly

Manual changelog XL (Dual-Head to Five-Head upgrade)

7. Nextruder & accessories assembly

Manual changelog (Single-Tool to Dual-Head Upgrade)

8. First run

Manual changelog Five-Head (Semi-Assembled)

Manual changelog XL (Single-head to Five-head upgrade)

2A. Printer Unboxing

2B. Printer Unboxing

<p>On printers with the xLCD with a USB drive connector, the firmware is flashed using a USB flash drive.</p>
<ol>
<li>Download the latest firmware for your printer and extract it (zip file) on your computer
<ul>
<li><a href="https://help.prusa3d.com/tag/mk4s">Original Prusa MK4S</a></li>
<li><a href="https://help.prusa3d.com/tag/mk4">Original Prusa MK4</a></li>
<li><a href="https://help.prusa3d.com/tag/mk3-9s">Original Prusa MK3.9S</a></li>
<li><a href="https://help.prusa3d.com/tag/mk3-9">Original Prusa MK3.9</a></li>
<li><a href="https://help.prusa3d.com/tag/mk3-5s">Original Prusa MK3.5S</a></li>
<li><a href="https://help.prusa3d.com/tag/mk3-5">Original Prusa MK3.5</a></li>
<li><a href="https://help.prusa3d.com/tag/xl">Original Prusa XL</a></li>
</ul>
</li>
<li>Make sure the USB flash drive doesn't contain any previous firmware (.bbf file)</li>
<li>Copy the new .bbf file to the root directory of a USB flash drive (Not within a folder).</li>
<li>Insert the USB flash drive and push the reset button<strong>.</strong> The bootloader will automatically compare the installed version with the one on the drive and, if newer, will automatically offer you to flash it.</li>
<li>Confirm the update by selecting the "FLASH" button and pressing the knob. </li>
</ol>
<p>If you need to downgrade the firmware or re-flash the same firmware, follow this guide: <a href="http://help.prusa3d.com/article/how-to-downgrade-firmware-mk4-s-mk3-9-s-mk3-5-s-xl_725930">How to downgrade firmware</a>.</p>
<div><img decoding="async" style="display: block; margin-left: auto; margin-right: auto;" src="https://cdn.help.prusa3d.com/wp-content/uploads/2023/05/035427dd374ce9f494d89568ff3e72ac.jpg" sizes="(min-width: 1024px) 820px, 100vw" srcset="Flashing firmware (MK4)" alt="" width="700" height="276" loading="lazy" /></div>
<h3>Factory Reset</h3>
<p>If you do a hard <a href="http://help.prusa3d.com/article/factory-reset-mk4-s-mk3-9-s-mk3-5-s-mini-xl_421206">Factory Reset</a>, the firmware that is in the USB will also be installed in the printer, so this can be used as a way to update the firmware.</p>


How to update firmware (MK4/S, MK3.9/S, MK3.5/S, XL)

<p>On the Original Prusa XL, adjusting the belt to the optimal tension is crucial to achieving good quality on the prints. A loose belt can cause <a href="http://help.prusa3d.com/article/layer-shifting_2020">Layer shifting</a>, <a href="http://help.prusa3d.com/article/ghosting_1801">Ghosting</a>, or other print abnormalities, like getting an irregular shape instead of a perfect circle. An over-tightened belt can cause an irregular movement in the X and Y axes.</p>
<p>The Original Prusa XL geometry is <strong>CoreXY</strong>: it has two belts for the X-axis. </p>
<h3>Belt tuner</h3>
<p>We have our own <a href="https://belt.connect.prusa3d.com/">belt tuner</a>. The application determines the belt tension by measuring the frequency of the vibration generated by strumming it. Follow the instructions in the video below to adjust the belt. </p>
<div class="note-callout">Once you tighten the belt on both sides, ensure that the two sides are perfectly aligned. If needed, follow the steps in the <a href="http://help.prusa3d.com/article/adjusting-belt-tension-xl_401793#Alignment">alignment</a> paragraph to fully align the two sides.</div>
<p style="text-align: center;"><iframe src="https://www.youtube.com/embed/lqC6rVrFLuY" width="560" height="314" allowfullscreen="allowfullscreen" loading="lazy"></iframe></p>
<h3>Homing tower</h3>
<p>We prepared a specific <a href="https://www.printables.com/model/542670-homing-tower" target="_blank" rel="noopener">homing tower</a>, to visualize possible issues with the belt tension and have the possibility to correct them on the spot. </p>
<p><img decoding="async" style="display: block; margin-left: auto; margin-right: auto;" src="https://cdn.help.prusa3d.com/wp-content/uploads/2023/08/03ee25ae808b03bc2a92e9ba69b4d1d9_painted.jpeg" sizes="(min-width: 1024px) 820px, 100vw" srcset="Adjusting belt tension - REVIEW (XL) [No belt tensioner, add GCode homing tower]" alt="" width="500" height="373" loading="lazy" /></p>
<p>In case the <span style="color: #e03e2d;"><strong>belt is loose</strong></span>, the tower will have an inconsistent finish, with scattered material on the walls instead of a smooth finish. Without interrupting the print, tighten the screws on both Y-axis rails by half turn. </p>
<p>If the print finish does not fully improve, repeat the procedure once again, until the homing tower has a <strong><span style="color: #3598db;">smooth, consistent finish</span></strong>. </p>
<p>An over-tightened belt can result in <span style="color: #b96ad9;"><strong>layer shifting</strong></span>.</p>
<p>Once the tower has a smooth finish, loosen the same screws very slightly, and observe if this further improves the tower. Repeat the procedure until the tower has an ideal finish. </p>
<p><img decoding="async" style="display: block; margin-left: auto; margin-right: auto;" src="https://cdn.help.prusa3d.com/wp-content/uploads/2023/03/XL_belt02.jpg" alt="" width="500" height="375" loading="lazy" /></p>
<p> </p>
<h3>Alignment</h3>
<p>It is crucial to have perfect alignment between the right and left sides.</p>
<div class="tip-callout">Tightening the right Y-axis rail reduces the space between the CoreXY Front Left and the X-axis on the right side but creates space on the left side, and vice versa. </div>
<p>Move the X-axis all the way to the front of the printer, and move the X-carriage with the extruder all the way to the left.</p>
<p>Test the alignment by <strong><span style="color: #ba372a;">squeezing</span></strong> the CoreXY Front Left and the X-axis on either side: there should be no <span style="color: #3598db;"><strong>play between the parts</strong></span>. If there is play, tighten the <span style="color: #b96ad9;"><strong>tensioning screw</strong></span> on the same side slightly, move the X-axis assembly back and all the way to the front, and test the alignment again on both sides. </p>
<p>The right side image shows the mechanism behind the <span style="color: #b96ad9;"><strong>tensioning screw</strong></span>. Tightening the screw pulls the <span style="color: #e67e23;"><strong>tensioner</strong></span> towards the front, resulting in a more tensioned belt on that side. </p>
<table style="border-collapse: collapse; width: 100%; border-style: none;" border="1">
<tbody>
<tr>
<td style="width: 48.8562%;"><img decoding="async" loading="lazy" src="https://cdn.help.prusa3d.com/wp-content/uploads/2024/03/e5517a25a18dffdebeea86d3c0941ba7_painted.jpeg" sizes="(min-width: 1024px) 820px, 100vw" srcset="Adjusting belt tension (XL)" alt="" width="395" height="296" /></td>
<td style="width: 48.8562%;"><img decoding="async" loading="lazy" src="https://cdn.help.prusa3d.com/wp-content/uploads/2023/11/25ae947f8b8238f278e1a2ed424f45ac_painted.jpeg" alt="" width="395" height="296" /></td>
</tr>
</tbody>
</table>
<p>Repeat the same procedure until both sides are perfectly aligned and without any play. Once at this stage, check the belt tension once again using the belt tuner app. Both belts need to be at the same tension, and at the same time, the X-axis has to be aligned. </p>
<p>In case there is a difference on the test, slightly tighten the screw on the side:</p>
<ul>
<li>tighten the right side to tension the upper belt as seen from the front.</li>
<li>tighten the left side to tension the lower belt as seen from the front. </li>
</ul>


Adjusting belt tension (XL)

<p>The  'cold pull' technique allows you to clean your printer’s nozzle and hotend from any material that may be stuck or burnt inside. You can also use it to clean your hotend during your usual maintenance routine. Starting from firmware 6.0.0 on MK4/S and MK3.9/S, and from firmware 6.1.3 on XL, the printer will do the process automatically. </p>
<div class="warning-callout">If you use <strong>Nozzle X</strong> (requires Nextruder V6 Nozzle Adapter), <strong>do not</strong> use the cold-pull method, only cleaning filament.</div>
<p>The cold pull should be done if your nozzle is only partially clogged, and some filament is still being extruded. If the nozzle is completely clogged, please check the clogged hotend article for <a href="http://help.prusa3d.com/article/clogged-hotend-mk4_411823">MK4/MK3.9</a>, or for <a href="http://help.prusa3d.com/article/clogged-hotend-xl_401294">XL</a>.</p>
<p>Our testing has found that PLA works best for a cold pull, as other filaments do not retain the tip as PLA does and they will either tear or melt too much. However, there are filaments specifically made for cleaning hotends.</p>
<h3>Automatic cold pull </h3>
<p>Have at least 30cm of PLA available when making this procedure. On multi-tool XL, pick the desired tool. Navigate to <em>LCD Menu -&gt; Control -&gt; Pick/Park Tool -&gt; Pick Tool #</em>. </p>
<p>Then, navigate to <em>LCD Menu -&gt; Control -&gt; Cold Pull</em>. </p>
<p>On MK4/S and MK3.9, you will see the options: unload the current filament (recommended in case you have any filament other than PLA loaded), Load PLA filament, and continue with the loaded filament (only use it if the filament loaded is PLA).</p>
<p style="text-align: center;"><img decoding="async" style="display: block; margin-left: auto; margin-right: auto;" src="https://cdn.help.prusa3d.com/wp-content/uploads/2024/04/02698ca5c3dc39344b07e95f053ab7c5.jpg" alt="" width="400" height="267" loading="lazy" /><em>Display screenshot for MK4/S, MK3.9/S</em></p>
<p>On XL, it is necessary to load the filament directly into the Nextruder. For this reason, before you continue, unload the filament. Then press down the blue part on the fitting and pull the PTFE tube from the tool head. After this, load the PLA filament directly into the Nextruder. </p>
<table style="border-collapse: collapse; width: 100%; border-style: none;" border="1">
<tbody>
<tr>
<td style="width: 48.8562%;"><img decoding="async" src="https://cdn.help.prusa3d.com/wp-content/uploads/2024/09/f28dbe21e86e44c93afe691f3eef0c08.jpg" alt="" width="395" height="263" loading="lazy" /></td>
<td style="width: 48.8562%;"><img decoding="async" src="https://cdn.help.prusa3d.com/wp-content/uploads/2024/09/e0fb3a4c5e8e2d4f11132ef268f9d0fb.jpg" sizes="(min-width: 1024px) 820px, 100vw" srcset="Cold pull (MK4, MK3.9, XL) #13702" alt="" width="395" height="263" loading="lazy" /></td>
</tr>
</tbody>
</table>
<div style="text-align: center;"><em>Screenshots taken on the Original Prusa XL</em></div>
<p>If the nozzle is heated, the printer will wait until it cools to 36 ºC. Then it will heat the printer to 80 ºC. After that, the printer will unload the filament automatically at that temperature.</p>
<table style="border-collapse: collapse; width: 100%;" border="0">
<tbody>
<tr>
<td style="width: 48.8358%;"><img decoding="async" src="https://cdn.help.prusa3d.com/wp-content/uploads/2024/04/e80788765382bc70f181e67f8b120388.jpg" sizes="(min-width: 1024px) 820px, 100vw" srcset="Cold pull (MK3.9, MK4) #13702" alt="" width="400" height="267" loading="lazy" /></td>
<td style="width: 48.8358%;"><img decoding="async" src="https://cdn.help.prusa3d.com/wp-content/uploads/2024/04/dc3aa0f7294933f18437bd2ecb20b3c3.jpg" sizes="(min-width: 1024px) 820px, 100vw" srcset="Cold pull (MK3.9, MK4) #13702" alt="" width="400" height="267" loading="lazy" /></td>
</tr>
</tbody>
</table>
<p>To finalize the procedure, remove the filament by hand, pulling it upwards. There might be a slight resistance, if the filament is stuck, open the idler lever. </p>
<p style="text-align: center;"><img decoding="async" src="https://cdn.help.prusa3d.com/wp-content/uploads/2024/09/440a42641852f2eebe67ec6bdc2e8f52.jpg" sizes="(min-width: 1024px) 820px, 100vw" srcset="Cold pull (MK4, MK3.9, XL) #13702" alt="" width="400" height="267" loading="lazy" /></p>
<h3>Manual Cold pull (XL, MK4/MK3.9 pre-firmware 5.1.3)</h3>
<h4>Preliminary steps (XL)</h4>
<ul>
<li>On multi-tool XL, pick the desired tool. Navigate to <em>LCD Menu -&gt; Control -&gt; Pick/Park Tool -&gt; Pick Tool #</em>. </li>
<li>Temporarily unscrew the fitting above the Nextruder. </li>
</ul>
<h4>Procedure (XL pre-firmware 6.1.3, MK4/MK3.9 pre-firmware 5.1.3)</h4>
<ol>
<li>Load a piece of PLA filament in the extruder, inserting it from above the extruder. The printer will prompt a material selection: select PLA and complete the loading procedure. </li>
<li>Open the Idler Swivel.<br /><img decoding="async" style="display: block; margin-left: auto; margin-right: auto;" src="https://cdn.help.prusa3d.com/wp-content/uploads/2023/03/XL_Extruder_Open2.jpg" sizes="(min-width: 1024px) 820px, 100vw" srcset="Cold pull (MK3.9, MK4) #13702" alt="" width="500" height="375" loading="lazy" /></li>
<li>Go to <em>LCD Menu -&gt; Control -&gt; Temperature -&gt; Nozzle Temperature</em> and set the temperature to 270 °C.</li>
<li>Once it has reached 270 °C push the PLA filament in until it starts pouring out of the nozzle.</li>
<li>Stop heating by pressing Cooldown in the <em>LCD Menu -&gt; Control -&gt; Temperature -&gt; Cooldown</em>, or by pressing the reset button. </li>
<li>Continue manually pushing the filament down until the temperature is too low for it to melt and come out (around 170 °C for PLA). The nozzle has to be filled for the cold pull to be successful.</li>
<li>Pick away any extruded material from the nozzle so nothing is obstructing the pull later on.</li>
<li>Wait for the temperature to reach 100 °C. As soon as it reaches 100 °C, grab the filament with pliers and pull it slowly but steadily out of the extruder. Make sure to pull straight upwards, not sideways, or the filament can break inside. Hold the extruder with your other hand.</li>
<li>Don't stop until the filament is completely pulled out from the extruder.</li>
<li>Close the Idler and the Idler Swivel. </li>
</ol>
<h3>Results</h3>
<p>On the tip of the filament that has been pulled out, you may see remnants of the previous material(s) you have been using or some burnt dirt that has settled in the nozzle (left picture). You might want to repeat this procedure several times until the filament comes out clean.</p>
<p>The right picture shows what a clean cold-pulled filament should look like. It is important to have the imprint of the nozzle on it, this way you are sure the nozzle was filled and nothing was left inside. Also, the color is not mixed with the one you have been using previously or has dark marks on it.</p>
<table style="border-collapse: collapse; width: 100%;" border="0">
<tbody>
<tr>
<td style="width: 48.805%;"><img decoding="async" style="display: block; margin-left: auto; margin-right: auto;" src="https://cdn.help.prusa3d.com/wp-content/uploads/dirty-cold-pull.jpg" sizes="100vw" srcset="https://cdn.help.prusa3d.com/wp-content/uploads/dirty-cold-pull-300x214.jpg 300w, https://cdn.help.prusa3d.com/wp-content/uploads/dirty-cold-pull-561x400.jpg 561w, https://cdn.help.prusa3d.com/wp-content/uploads/dirty-cold-pull-768x548.jpg 768w, https://cdn.help.prusa3d.com/wp-content/uploads/dirty-cold-pull-800x571.jpg 800w" alt="dirty cold pull" width="399" height="285" loading="lazy" /></td>
<td style="width: 48.9057%;"><img decoding="async" style="display: block; margin-left: auto; margin-right: auto;" src="https://cdn.help.prusa3d.com/wp-content/uploads/clean-cold-pull.jpg" sizes="100vw" srcset="https://cdn.help.prusa3d.com/wp-content/uploads/clean-cold-pull-300x203.jpg 300w, https://cdn.help.prusa3d.com/wp-content/uploads/clean-cold-pull-591x400.jpg 591w, https://cdn.help.prusa3d.com/wp-content/uploads/clean-cold-pull-768x520.jpg 768w, https://cdn.help.prusa3d.com/wp-content/uploads/clean-cold-pull-800x542.jpg 800w" alt="clean cold pull" width="399" height="270" loading="lazy" /></td>
</tr>
</tbody>
</table>


Cold pull (MK4/S, MK3.9/S, XL) #13702 #17702

<p>It is recommended to regularly take some time to maintain your Original Prusa XL. This should be done even if the printer is working perfectly. <strong>The inspection and maintenance of its various components should be done every ~200-300 hours of print time</strong>.</p>
<h3>Useful tools</h3>
<p>Besides the usual tools, such as Allen keys, needle-nose pliers, and IPA (IsoPropyl Alcohol) + paper towels, you might need:</p>
<ul>
<li><strong>Compressed air</strong>: also known as canned air. Be sure to not hold it upside down while spraying - otherwise, you could damage any electronic components while trying to clean them.</li>
<li><strong>Brush</strong>: a small brass brush is a useful tool for cleaning the heaterblock. If you don't have a brass brush any brush with hard bristles will do the job.</li>
<li><strong>Prusa Lubricant</strong>: a tube of Prusa Lubricant is included with the Original Prusa XL. It is used in the Z-axis leadscrew paragraph.</li>
</ul>
<p>DO NOT use Prusa Lubricant on the linear rails! </p>
<h3>Axes check</h3>
<p>Ensure that there is no debris or dust on the <strong>linear rails</strong>. If there is, clean them using a clean paper tissue or a clean cloth <strong>with NO de-greaser</strong> and <strong>with no chemicals</strong>, as these might damage the rubber in the carriage. The factory lubrication for linear rails is effective for at least 2 years.</p>
<h3>Z-axis leadscrews</h3>
<p>After ~500 hours of print time, lubricate the Z-axis leadscrews.</p>
<ol>
<li>Ensure you have the <strong>Z thread greaser</strong> printed part.
<ul>
<li>If you haven't printed it, download and print it from the <a href="https://www.printables.com/model/449554-xl-printable-parts">XL printed parts page</a>. The part is listed under <em>Files -&gt; Parts for maintenance</em>.</li>
</ul>
</li>
<li>Go into the printer menu to <em>Control -&gt; Autohome</em>.</li>
<li>Lubricate the Z-axis leadscrew, applying moderate quantities of Prusa Lubricant in the Z thread greaser positioned onto the Z-axis leadscrew.</li>
<li>Go into the printer menu to <em>Control -&gt; Move axis -&gt; Move Z</em>, and move the axis all the way down.</li>
<li>Autohome the printer via the printer menu <em>Control -&gt; Autohome</em>.</li>
</ol>
<p>After that, the Z-axis leadscrews are lubricated.</p>
<h3>Belt</h3>
<p>Over a long printing time, the belt can slightly loosen, causing issues such as layer shifting, or bad printing quality. The easiest way to check the belt tension is to print a circular object. If the result is not perfectly round, a belt adjustment is needed. The full instructions on belt adjustment are in a <a href="http://help.prusa3d.com/article/adjusting-belt-tension-xl_401793">dedicated article</a>.</p>
<h3>Side filament sensor</h3>
<p>The side filament sensor on the printer may accumulate leftover filament over time. To prevent false readings, follow the guide <a href="http://help.prusa3d.com/guide/how-to-clean-the-side-filament-sensor-xl_547477">How to clean the side filament sensor (XL)</a>.</p>
<h3>Flexible steel sheet</h3>
<p>All flexible steel sheets should be cleaned regularly to ensure adhesion, but the exact methods and washing solutions can differ depending on your type of sheet.</p>
<p>You can find more information on how to take care of your flexible steel sheet <a href="http://help.prusa3d.com/article/flexible-steel-sheets-guidepost_2195">in this article</a>.</p>
<h3>Fans</h3>
<p>The Original Prusa XL is equipped with a hotend fan, and with a print fan. The printer can detect if any of its fans stop spinning. However, that does not mean you should not check them during maintenance. Dust or plastic build-up can decrease their efficiency or even damage them.</p>
<p>Both fans should be checked and cleaned after a few hundred hours of printing. With the fan <strong>not </strong>moving, dust can be removed with compressed air in a spray can, small plastic threads can be removed with tweezers.</p>
<p>Do not blow compressed air on a running fan: the fan can get damaged this way.</p>
<h3>Nextruder</h3>
<div class="warning-callout">When accessing the extruder parts, do not open the gearbox: this action can cause issues on the extrusion and will <strong>void the printer warranty</strong>.</div>
<p>The primary gear and the bearings attached to the Idler Shaft in the extruder do not need any lubricant. Over time, a deposit of filament debris can form in the grooves of the primary gear, which then causes insufficient filament extrusion.</p>
<p>Access the extruder by <span style="color: #169179;"><strong>lifting the Idler Nut</strong></span>, and then moving the <span style="color: #843fa1;"><strong>Idler Shaft</strong></span>. You can blow away the dirt with compressed air, or use a brass brush or an ordinary toothpick. Use the access hole on the front of the extruder/tool head.</p>
<table style="border-collapse: collapse; width: 100.0%; border-style: none;" border="1">
<tbody>
<tr>
<td style="width: 48.7906%;"><img decoding="async" src="https://cdn.help.prusa3d.com/wp-content/uploads/2024/07/51e3bd4c4676cd17f22fd50f17e3329e.jpg" sizes="(min-width: 1024px) 820px, 100vw" srcset="Regular printer maintenance (XL) REVIEW" alt="" width="395" height="296" loading="lazy" /></td>
<td style="width: 48.7906%;"><img decoding="async" src="https://cdn.help.prusa3d.com/wp-content/uploads/2024/02/3454b67fd80ef463d6fb946377283c23.jpg" sizes="(min-width: 1024px) 820px, 100vw" srcset="Regular printer maintenance (XL) REVIEW" alt="" width="395" height="296" loading="lazy" /></td>
</tr>
</tbody>
</table>
<h3>Heaterblock</h3>
<div class="warning-callout"><strong>CAUTION</strong>: Heated parts can cause severe burns!</div>
<p>If the heaterblock is covered with plastic, it can affect its thermal properties. To clean it, heat the nozzle for 3 to 5 minutes at 250 °C, and <strong>turn the printer off</strong>. Immediately after that use a small brass brush to clear away any old plastic stuck on the nozzle and heaterblock. Be extra careful around the fragile wires that join the heaterblock.</p>
<p>You can also use the <a href="https://www.prusa3d.com/product/prusa-nextruder-silicone-sock-set/">Nextruder silicone sock</a> to protect your heater block.</p>
<h3>Electronics</h3>
<p>Every ~600-800 printing hours access the electronic boards for a visual check.</p>
<div class="warning-callout">Before touching the electrical connections, please make sure that the printer is <strong>fully cooled down</strong>, <strong>switched off</strong>, and <strong>unplugged from the main power source for at least 10 minutes</strong>.</div>
<ul>
<li>Check if there are any pinched or worn cables on the printer.</li>
<li>Access the electronic boards and blow compressed air in between the cables to get rid of dust.</li>
<li>Check the connection of all of the wires on the electronic boards.</li>
</ul>
<h3>Firmware and software</h3>
<p>You should always be using the latest <a href="http://help.prusa3d.com/article/how-to-update-firmware-mk4-s-mk3-9-s-mk3-5-s-xl_453086">stable firmware</a> version that we have published for your specific printer model. You can check the firmware version you have, by navigating to <em>LCD menu - Info - Version info</em>.</p>
<p>We also recommend using the latest version of our <a href="http://help.prusa3d.com/article/install-prusaslicer_1903">PrusaSlicer</a>, as it enables you to <strong>enjoy all the features</strong> of your printer. It even saves information about the printer model, nozzle diameter, and firmware version directly into the g-code file so that the printer can warn you if anything is out of date or incompatible.</p>
<h3>Tool-changer/ToolHead cleaning</h3>
<p>This can be made along with the rest of the maintenance, or it can also be done if you notice that your prints have banding or ringing issues. The metal connection of the ToolHead and the ToolChanger needs to be lubricated to work smoothly. For that, use the guide <a href="http://help.prusa3d.com/guide/how-to-lubricate-the-coupler-pins-on-original-prusa-xl-multi-tool_636777">How to lubricate the coupler pins on Original Prusa XL (Multi-Tool)</a>.</p>


Regular printer maintenance (XL)

<p style="text-align: left;">The Original Prusa XL can print true multi-material prints without the need for any purge or wipe tower.</p>
<p style="text-align: left;">The purge tower is turned <strong>ON</strong> by default (when you are mixing materials or colors) because it's the best way to cover a wide range of materials and to ensure maximum reliability when using our default profiles.</p>
<p>However, under certain circmunstances, you can turn it off and still get perfect prints. The main factor is the filament quality and especially <strong>how dry the material</strong> <strong>is</strong>. The moisture in the filament is the main cause for the filament leaking out of the pre-heated nozzle during travel moves and when the tool is parked. It also greatly affects stringing.</p>
<p>If you want to try printing without the purge tower, make sure your filament is dry and check on the print regularly.</p>
<p>You can learn about how to properly dry filament in <a href="http://help.prusa3d.com/article/drying-filament_332086">our guide</a>.</p>
<p><img decoding="async" src="https://cdn.help.prusa3d.com/wp-content/uploads/2023/12/d6d2e01d27cf05746c5ffed5edca476c.jpg" sizes="(min-width: 1024px) 820px, 100vw" srcset="Printing without purge tower on XL (Multi-Tool)" alt="" width="1812" height="1000" loading="lazy" /></p>
<h3><img decoding="async" src="https://cdn.help.prusa3d.com/wp-content/uploads/2023/12/7c1f1bec38e3cc8d3721a1f4e665849a.jpg" sizes="(min-width: 1024px) 820px, 100vw" srcset="Printing without purge tower on the XL (Multi-Tool)" alt="" width="1500" height="844" loading="lazy" /></h3>
<h3>How to turn off the Purge tower</h3>
<p>Go to the <strong>Print settings - Multiple Extruders - Wipe Tower</strong> and untick the Enable checkbox.</p>
<p><img decoding="async" src="https://cdn.help.prusa3d.com/wp-content/uploads/2023/12/03dc24cd5377cd5b54731794f9367225_painted.png" sizes="(min-width: 1024px) 820px, 100vw" srcset="Printing without purge tower on the XL (Multi-Tool)" alt="" width="1600" height="1060" loading="lazy" /></p>
<p> </p>


Printing without purge tower on the XL (Multi-Tool)

<p>Sometimes it is necessary to reinstall an older version of the firmware. The method to <a href="http://help.prusa3d.com/article/how-to-update-firmware-mk4-s-mk3-9-s-mk3-5-s-xl_453086">update the firmware</a> only allows newer firmware versions to be flashed. To flash the same firmware, or an older one, follow the steps below.</p>
<div class="tip-callout">If it repeatedly only boots the printer and gives you the home screen try to <a href="http://help.prusa3d.com/article/sd-cards-and-usb-drives_112291">format your USB flash-drive</a> or try a different one. Even if the flash drive works with G-Codes and printing, it may not work for flashing the firmware.</div>
<ol>
<li>To find the older versions, go to the <a href="https://help.prusa3d.com/downloads">Downloads</a> page, select your printer, and click on <strong><span style="color: #e67e23;">Older versions</span></strong>.</li>
</ol>
<p><img decoding="async" style="display: block; margin-left: auto; margin-right: auto;" src="https://cdn.help.prusa3d.com/wp-content/uploads/2024/06/2d27f0914e1eb33fe468242efccbd072.jpg" sizes="(min-width: 1024px) 820px, 100vw" srcset="How to downgrade firmware (MK3.5/MK3.9/MK4/XL)" alt="" width="700" height="328" loading="lazy" /></p>
<ol start="2">
<li>Load the .bbf file directly into the root folder of the USB drive.</li>
<li>Insert the drive into the printer.</li>
<li>Push the reset button, and once the printer logo appears on the screen, press and hold the knob.</li>
<li>On the new screen, confirm the update by selecting the "FLASH" button and pressing the knob.</li>
</ol>
<h3>Factory Reset</h3>
<p>If you do a hard <a href="http://help.prusa3d.com/article/factory-reset-mk4-s-mk3-9-s-mk3-5-s-mini-xl_421206">Factory Reset</a>, the firmware that is in the USB will also be installed in the printer, so this can be used as a way to update the firmware.</p>


How to downgrade firmware (MK4/S, MK3.9/S, MK3.5/S, XL)

<p>Replacing the Prusa Nozzle on your printer varies depending on the model of your printer. This article provides an overview of the different methods to replace the Prusa Nozzle, directing you to the appropriate guides for your specific printer model.</p>
<p><img decoding="async" style="display: block; margin-left: auto; margin-right: auto;" src="https://cdn.help.prusa3d.com/wp-content/uploads/2024/09/42b595784cf5f49217654d68c71c1b68.jpg" sizes="(min-width: 1024px) 820px, 100vw" srcset="Changing or replacing the Prusa Nozzle" alt="" width="50%" /></p>
<h3>Do I have the Prusa Nozzle?</h3>
<p>Every MK4S, MK3.9S, MK4, MK3.9 and XL that is shipped from our company comes with the Prusa Nozzle installed or included in the kit.</p>
<h3>Methods for replacing the Prusa Nozzle</h3>
<p>There are two different ways to replace the nozzle for each model. We have designed the <strong>Nozzle Replacement Tool</strong> that makes the process easier and quicker, <strong>but it requires printing the tool first</strong>. </p>
<div class="note-callout">All methods listed below are fully compatible with both Prusa Nozzle and Prusa Nozzle CHT diameters.</div>
<p>MK4S/MK3.9S</p>
<ul>
<li><a href="http://help.prusa3d.com/guide/how-to-replace-the-prusa-nozzle-mk4s-mk3-9s_734750">How to replace the Prusa Nozzle (MK4S/MK3.9S)</a></li>
<li><a href="https://www.printables.com/model/980297-mk4s-nozzle-replacement-tool">How to replace the Prusa Nozzle (MK4S/MK3.9S) using the MK4S Nozzle Replacement Tool</a> (instructions in the description on Printables.com)</li>
</ul>
<p>MK4/MK3.9</p>
<ul>
<li><a href="http://help.prusa3d.com/guide/how-to-replace-the-prusa-nozzle-mk4-mk3-9_421215">How to replace the Prusa Nozzle (MK4/MK3.9)</a></li>
<li><a href="https://www.printables.com/model/801656-mk4-nozzle-replacement-tool">How to replace the Prusa Nozzle (MK4/MK3.9) using the MK4 Nozzle Replacement Tool</a> (instructions in the description on Printables.com)</li>
</ul>
<p>XL Single-tool</p>
<ul>
<li><a href="http://help.prusa3d.com/guide/how-to-replace-the-prusa-nozzle-xl-single-tool_405846">How to replace the Prusa Nozzle (XL single-tool)</a></li>
<li><a href="https://www.printables.com/model/786649-xl-nozzle-replacement-tool">How to replace the Prusa Nozzle (XL single-tool) using the XL Nozzle Replacement Tool</a> (instructions in the description on Printables.com)</li>
</ul>
<p>XL Multi-tool</p>
<ul>
<li><a href="http://help.prusa3d.com/guide/how-to-replace-the-prusa-nozzle-xl-multi-tool_506481">How to replace the Prusa Nozzle (XL multi-tool)</a></li>
<li><a href="https://www.printables.com/model/786649-xl-nozzle-replacement-tool">How to replace the Prusa Nozzle (XL multi-tool) using the XL Nozzle Replacement Tool</a> (instructions in the description on Printables.com)</li>
</ul>
<p> </p>


Changing or replacing the Prusa Nozzle

<p>Replacing the Nextruder Hotend assembly on your printer may differ depending on the specific model you own. This article outlines various approaches for replacing the Nextruder Hotend and guides you to the correct instructions for your printer model.</p>
<p><img decoding="async" style="display: block; margin-left: auto; margin-right: auto;" src="https://cdn.help.prusa3d.com/wp-content/uploads/2024/08/37a78f7bfaa93b2dfce96c3e72d670da_painted.jpeg" sizes="(min-width: 1024px) 820px, 100vw" srcset="Changing or replacing the Nextruder Hotend" alt="" width="50%" /></p>
<h3>Do I have the Nextruder Hotend on my printer?</h3>
<p>Every MK4S, MK3.9S, MK4, MK3.9, and XL printer is equipped with a Nextruder Hotend.<img decoding="async" src="https://cdn.help.prusa3d.com/wp-content/uploads/2024/08/37a78f7bfaa93b2dfce96c3e72d670da_painted.jpeg" sizes="(min-width: 1024px) 820px, 100vw" srcset="DSC_1096.jpg" alt="" width="NaN" height="NaN" loading="lazy" /></p>
<h3>Methods for replacing the Nextruder Hotend assembly:</h3>
<div class="note-callout">All methods listed below are fully compatible with both Prusa Nozzle and Prusa Nozzle CHT diameters.</div>
<div>MK4S/MK3.9S</div>
<ul>
<li><a href="http://help.prusa3d.com/guide/how-to-replace-a-hotend-assembly-mk4s-mk3-9s_765342">How to replace a hotend assembly (MK4S / MK3.9S)</a></li>
</ul>
<div>MK4/MK3.9</div>
<ul>
<li><a href="http://help.prusa3d.com/guide/how-to-replace-a-hotend-assembly-mk4-mk3-9_645439">How to replace a hotend assembly (MK4 / MK3.9)</a></li>
</ul>
<div>XL Single-tool</div>
<ul>
<li><a href="http://help.prusa3d.com/guide/how-to-replace-the-hotend-assembly-xl-single-tool_409911">How to replace the Hotend assembly (XL single-tool)</a></li>
</ul>
<div>XL Multi-tool</div>
<ul>
<li><a href="http://help.prusa3d.com/guide/how-to-replace-the-hotend-assembly-xl-multi-tool_573711">How to replace the Hotend assembly (XL multi-tool)</a></li>
</ul>


Changing or replacing the Nextruder Hotend

How to replace the CoreXY plastic parts

How to replace a Dwarf board (XL multi-tool)

How to replace the rubber band on Original Prusa XL (Multi-tool)

How to fix Modular bed error (HW solution)

How to replace trapezoid nuts (XL)

How to replace Nextruder heatsink (XL Multi-tool)

How to replace the tch-profile-insert (XL)

How to change xLCD and xLCD cable (XL single-tool)

How to install the Nextruder V6 Nozzle Adapter (XL Multi-Tool)

How to replace a XY motor (XL)

How to change the xLCD (XL)

How to install the Nextruder V6 Nozzle Adapter (XL single-tool)


<ul>
<li>Initial release for Original Prusa XL</li>
</ul>


1.00

4.5.3


<ul>
<li>Improved 'Monotonic lines' fill pattern</li>



<li>Improved Acceleration control</li>



<li>Specific object arrangement for XL</li>



<li>Original Prusa XL profiles</li>



<li>Updated translations</li>



<li>Bugfixes</li>
</ul>


2.5.1


<ul>
<li>Original Prusa MK4 profiles</li>
</ul>


2.5.2


<ul>
<li>New Home screen </li>



<li>Homing improvements</li>



<li>Changes to Live Adjust Z</li>



<li>Footer Items settings improved&nbsp;</li>



<li>Prusa Connect and PrusaLink improvements</li>



<li>Improvements to the Factory Reset feature&nbsp;</li>



<li>Calibrations and Tests on improvements</li>



<li>Tool changer usage statistics</li>



<li>Bugfixes</li>
</ul>


4.6.1


<p>Updated with information for semi-assembled XL</p>


1.02


<ul>
<li>Organic supports</li>



<li>Automatic support painter</li>



<li>Text embossing tool</li>



<li>Improved cut tool</li>



<li>Adding connectors and dowel pins</li>



<li>Measurement tool</li>



<li>Dynamic overhang speed</li>



<li>Improved Ensure vertical shell thickness</li>



<li>Smart extending of sparse infill</li>
</ul>


2.6.0


<ul>
<li>Multi-tool support</li>



<li>Other improvements</li>



<li>Bug fixes</li>
</ul>


4.7.0


<ul>
<li>Single tool G-code on a multi tool printer</li>



<li>Known Bugs</li>
</ul>


4.7.1


<ul>
<li>Custom nozzle diameter</li>



<li>Temperature menu reordered</li>
</ul>


4.7.2


<ul>
<li>Updated with instructions for the Original Prusa PDU</li>
</ul>


1.03


<ul>
<li>New Arrange tool options</li>



<li>New Cut tool options</li>



<li>Per-symbol text projection on surface</li>



<li>Interlocking of painted areas for MMU printing</li>
</ul>


2.6.1

4.7.5


<ul>
<li>New SVG support</li>



<li>Binary G-Code (.bgcode) export support + conversion</li>



<li>Arc fitting support </li>
</ul>


2.7.0


<ul>
<li>Printing speed boost with Input Shaper and Pressure Advance (XL and MINI)</li>



<li>Major updates to network code; Instant Printing feature</li>



<li>Major updates to Prusa Connect and network communication</li>



<li>Introducing a new efficient open-source Binary G-code format</li>



<li>New useful pre-print screen for XL Multi-Tool printers</li>



<li>Cancel object directly from the printer’s menu</li>
</ul>


5.1.0


<ul>
<li>Binary G-code settings</li>



<li>Wipe tower weight</li>



<li>Bug fixes</li>
</ul>


2.7.1


<ul>
<li>Nozzle diameter in Selftest (XL)</li>



<li>Wipe tower info added (XL)</li>



<li>Sending crash dumps to Tech support</li>



<li>New bootloader 2.3.4</li>



<li>Firmware flashing updated</li>



<li>Bug fixes</li>
</ul>


5.1.2


<ul>
<li>Update on the change from 0.6 mm nozzle diameter to 0.4 mm as default.</li>
</ul>


1.04


<ul>
<li>Smarter color painting</li>



<li>Improved Color change</li>



<li>Ramping travel moves</li>



<li>SLA material overrides</li>
</ul>


2.7.2


<ul>
<li>Improvements to multi-material printing</li>



<li>Vase mode smoothing</li>



<li>Support for 3MF files generated in BambuStudio</li>



<li>Metadata with boundary polygon of each object</li>
</ul>


2.7.3


<ul>
<li>Objects from 3MFs generated by BambuStudio now retain multimaterial painting when loaded</li>



<li>Fixed a bug where downloading files from Printables did not work when enabled in Preferences</li>
</ul>


2.7.4


<ul>
<li>Phase Stepping &amp; Calibration</li>



<li>Touch support</li>



<li>Stuck filament detection</li>



<li>Stealth mode&nbsp;</li>



<li>Time Zone settings updated</li>



<li>Filament Sensor Options</li>



<li>RGB Side Strip Dimming</li>



<li>Improvements by Prusa community</li>



<li>Bug fixes</li>
</ul>


6.0.0


<ul>
<li>Japanese language support (MK4, MK3.9, MK3.5, XL)</li>



<li>Phase stepping fixes (XL)</li>



<li>Nozzle cleaning repaired (MK4, MK3.9, XL)</li>



<li>Stealth mode corrected (MK4, MK3.9, MK3.5, XL)</li>
</ul>


6.0.1


<ul>
<li>Original Prusa XL Enclosure functions (XL)</li>



<li>Improvements by Prusa community</li>
</ul>


6.0.2


<ul>
<li>Interim solution of USB disconnect issues (MK4, MK3.9, MK3.5, XL)</li>
</ul>


6.0.3


<ul>
<li>Prusa Connect integration</li>



<li>Prusa Account integration</li>



<li>Improved UI</li>



<li>Improved G-code Viewer</li>



<li>New system profile updating system</li>



<li>Single Perimeter for top and bottom layers</li>



<li>Extended SLA layer separation configuration</li>



<li>Bug fixes</li>
</ul>


2.8.0


<ul>
<li>Modified MCU overheat&nbsp; (XL)</li>



<li>Bug fixes</li>
</ul>


6.0.4


<ul>
<li>Support for MK3.9S and MK3.5S printers</li>



<li>Numeric keyboard</li>



<li>Custom names for steel sheet</li>



<li>User-configurable hostname</li>



<li>Binary G-code check</li>



<li>ESP firmware flash during boot (MINI, MK3.5/S, MK3.9/S, MK4/S)</li>



<li>New bootloader 2.3.5</li>



<li>Network Status screen</li>



<li>Steel sheet name in footer (MK3.5/S)</li>



<li>Powered Z-motors during calibration procedure (MK3.5/S, MK3.9/S, MK4/S)</li>



<li>Default nozzle diameter set to 0.4 (XL)</li>



<li>Bug fixes</li>
</ul>


6.1.2


<ul>
<li>Issues with numeric keyboard repaired (MK4/S, MK3.9/S, MK3.5/S, XL)</li>



<li>Returned nozzle diameter setup (XL)</li>



<li>Printhead position during calibrations changed (MK4/S, MK3.9/S, MK3.5/S)</li>



<li>Cold pull (XL)</li>
</ul>


6.1.3


<ul>
<li>Improved menu bar, the menu no longer hides under a button</li>



<li>Two new parameters (Abrasive material and High flow nozzle) for G-Code checks</li>



<li>Improved automatic orientation of bridges</li>



<li>Number of bugfixes</li>
</ul>


Original Prusa XL

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