Travel time is 3x slower than Cura

Please allow cloud account storage of PrusaSlicer settings

X, Y, Z axis when print paused.

Model Permissions

Mini Extruder Issues

<p>For the <strong>current estimated lead time on your placed order</strong>, please enter the <strong>order details</strong> in your e-shop account.</p>
<p><strong>Original Prusa Enclosure</strong> (with all addons) is <strong>IN STOCK!</strong></p>
<p><strong>Original Prusa i3 MK3S+ complete (assembled) printers are IN STOCK!</strong></p>
<p><strong>Original Prusa MK3S+ kit</strong> with no other items added (other products in the order may increase the lead time a bit at the time of preparation) is <strong>IN STOCK!</strong></p>
<p><strong>The Original Prusa MINI+</strong> with pre-assembled parts has a lead time of <strong>1-2 weeks.</strong></p>
<p><strong>The Original Prusa MINI+ kit is IN STOCK!<br /></strong></p>
<p>Multimaterial upgrades, <strong>MMU2S</strong> has a lead time of <strong>8-9 weeks.</strong></p>
<p>All printer, kit, or upgrade orders are shipped in <strong>chronological</strong> <strong>order based on the product version and other items in the order</strong>. A slight delay can be caused by the batch production of black/orange parts or additional items or filaments in the order that might be temporarily out of stock when the order is due. Nevertheless, all orders of the exact same products are shipped chronologically.</p>
<p>Information regarding <strong>SL1S and CW1S bundles</strong> are <strong>IN STOCK!</strong></p>
<p><strong>SL1 to SL1S upgrade is IN STOCK!</strong></p>
<p><strong>Pre-order information on <a href="https://www.prusa3d.com/product/original-prusa-xl-2/" target="_blank" rel="noopener noreferrer">Original Prusa XL</a> - Shiping of the fully assembled printers with one tool head has started. Shipping of the semi-assembled units and multi-tool printers will start in May 2023. New orders will be processed in Q4 2023. Check the <a href="https://blog.prusa3d.com/original-prusa-xl-now-shipping_75721/">latest update.</a></strong></p>
<h3>Current lead times for new orders</h3>
<p><span style="color: #e67e23;"><strong>Updated: March 21th, 2023</strong></span></p>
<p><em>The dates are only an estimation at the date of update, specified above, and rely on the actual production. 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><em>For the <strong>current estimated lead time on your placed order</strong>, please enter the <strong>order details in your e-shop account</strong>. The table below is referencing newly placed orders only.</em></p>
<table class="table" style="border-collapse: collapse; height: 602.531px; border-style: ridge; width: 100%;" border="1">
<tbody>
<tr style="height: 60.5312px;">
<td style="height: 60.5312px; width: 47.2453%; border-style: dotted; border-width: 1px; text-align: center;">
<h4>Product</h4>
</td>
<td style="height: 60.5312px; width: 50.4654%; border-style: dotted; border-width: 1px; text-align: center;">
<h4>Lead time</h4>
</td>
</tr>
<tr style="height: 57px;">
<td style="height: 57px; width: 47.2453%; border-style: dotted; border-width: 1px; text-align: center;">
<p><strong>Original Prusa i3 MK3S+ kit</strong> (all versions)</p>
</td>
<td style="height: 57px; width: 50.4654%; border-style: dotted; border-width: 1px; text-align: center;">
<p><strong>IN STOCK!</strong></p>
</td>
</tr>
<tr style="height: 55px;">
<td style="height: 55px; width: 47.2453%; border-style: dotted; border-width: 1px; text-align: center;">
<p><strong>Original Prusa i3 MK3S+ complete</strong> (all versions)</p>
</td>
<td style="height: 55px; width: 50.4654%; border-style: dotted; border-width: 1px; text-align: center;">
<p><strong>IN STOCK!</strong></p>
</td>
</tr>
<tr style="height: 68px;">
<td style="height: 68px; width: 47.2453%; border-style: dotted; border-width: 1px; text-align: center;">
<p><strong>Original Prusa i3 MK3/S to MK3S+ upgrade<br /></strong>Original Prusa MINI to MINI+ upgrade kit<strong><br /></strong></p>
</td>
<td style="height: 68px; width: 50.4654%; border-style: dotted; border-width: 1px; text-align: center;">
<p><strong>IN STOCK!</strong></p>
</td>
</tr>
<tr style="height: 68px;">
<td style="height: 68px; width: 47.2453%; border-style: dotted; border-width: 1px; text-align: center;">
<p><strong>MMU2S</strong> - Original Prusa i3 MK2.5S &amp; MK3S/+<br />Multi-Material 2S upgrade kit</p>
</td>
<td style="height: 68px; width: 50.4654%; border-style: dotted; border-width: 1px; text-align: center;">
<p><strong>8-9 weeks</strong></p>
</td>
</tr>
<tr style="height: 84px;">
<td style="height: 84px; width: 47.2453%; border-style: dotted; border-width: 1px; text-align: center;">
<p><strong>SL1S SPEED/bundle</strong></p>
<p><strong>CW1S</strong></p>
</td>
<td style="height: 84px; width: 50.4654%; border-style: dotted; border-width: 1px; text-align: center;">
<p><strong>IN STOCK!</strong></p>
</td>
</tr>
<tr style="height: 84px;">
<td style="width: 47.2453%; border-style: dotted; border-width: 1px; text-align: center; height: 84px;">
<p><strong>Original Prusa SL1 to SL1S upgrade kit</strong></p>
</td>
<td style="width: 50.4654%; border-style: dotted; border-width: 1px; text-align: center; height: 84px;">
<p><strong>IN STOCK!</strong></p>
</td>
</tr>
<tr style="height: 58px;">
<td style="height: 58px; width: 47.2453%; border-style: dotted; border-width: 1px; text-align: center;">
<p><strong>Original Prusa MINI+ (pre-assembled parts)</strong></p>
</td>
<td style="height: 58px; width: 50.4654%; border-style: dotted; border-width: 1px; text-align: center;">
<p><strong>1-2 weeks</strong></p>
</td>
</tr>
<tr style="height: 68px;">
<td style="width: 47.2453%; border-style: dotted; border-width: 1px; text-align: center; height: 68px;">
<p><strong>Original Prusa MINI+ kit</strong></p>
</td>
<td style="width: 50.4654%; border-style: dotted; border-width: 1px; text-align: center; height: 68px;">
<p><strong>IN STOCK!</strong></p>
</td>
</tr>
<tr style="height: 68px;">
<td style="width: 47.2453%; border-style: dotted; border-width: 1px; text-align: center; height: 68px;">
<p><strong>Original Prusa Enclosure</strong> (without addons)</p>
</td>
<td style="width: 50.4654%; border-style: dotted; border-width: 1px; text-align: center; height: 68px;">
<p><strong>IN STOCK!</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

<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>
<div class="warning-callout"><strong>DO NOT use Prusa Lubricant on the linear rails! </strong></div>
<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 leadscrew</h3>
<p>After ~500 hours of print time, lubricate the Z-axis leadscrews: apply <strong>a tiny bit of Prusa Lubricant</strong> on the Z-axis leadscrews. After this, move the Z-axis all the way down, and then all the way up. </p>
<h3>Belt</h3>
<p>Attach the belt tensioner on the top belt on the X-axis. The belt tensioner has a pointer, check if it is in the optimal range. The ideal position of the pointer is in the center area, closer to the max mark.</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>
<div class="warning-callout">Acetone should be used sparingly for cleaning, and only be used on the Smooth steel sheet! <strong>Never use acetone on the Textured or Satin steel sheet </strong>as the surface will be permanently damaged.</div>
<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>
<div class="note-callout">Do not blow compressed air on a running fan: the fan can get damaged this way. </div>
<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. Access the extruder by lifting the Idler Nut, and then moving the Idle Shaft. You can blow away the dirt with compressed air, or use a brass brush or an ordinary toothpick. Use the access hole on the side of the extruder. </p>
<p><img decoding="async" style="display: block; margin-left: auto; margin-right: auto;" src="https://cdn.help.prusa3d.com/wp-content/uploads/2023/02/XL_Extruder_PrimaryGear_TipTensionBolts.jpg" sizes="(min-width: 1024px) 820px, 100vw" srcset="Regular printer maintenance (XL)" alt="" width="600" height="450" loading="lazy" /></p>
<h3>Heaterblock</h3>
<div class="warning-callout"><strong>CAUTION</strong>: Heated parts can cause severe burns!</div>
<p>In case 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>
<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 <strong>stable </strong>firmware 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>


Regular printer maintenance (XL)

<p>A clogged nozzle or hotend is a common issue for FFF/FDM printers. If there are no issues, the filament is pushed in the hotend, melted, and then extruded through the nozzle. However, if the nozzle is damaged or there are impurities in the filament it might get stuck in the hotend, clogging the printer.</p>
<h3>How to spot clogged nozzle/hotend?</h3>
<h4>Visual check</h4>
<ul>
<li>Is the filament reaching the nozzle? Check the PTFE tube, between the filament sensor and the print head.</li>
<li>Is the filament coming out of the nozzle? Pay attention when loading the filament.</li>
<li>Partial clog - gaps and missing layers</li>
<li>Partial clog - filament curling up and sticking to the nozzle</li>
</ul>
<h4>Soundcheck</h4>
<p>Check if there are clicking noises from the extruder</p>
<ul>
<li>If there is a loud clicking noise, this most likely suggests the nozzle is clogged or deformed </li>
<li>If there is a light clicking noise, this can most likely point to the gearing</li>
</ul>
<p><img decoding="async" style="display: block; margin-left: auto; margin-right: auto;" src="https://cdn.help.prusa3d.com/wp-content/uploads/81f35c769288a087.jpg" sizes="(min-width: 1024px) 820px, 100vw" srcset="Clogged hotend (XL)" alt="" width="400" height="400" loading="lazy" /></p>
<h4>Partial clog</h4>
<p>Sometimes the clog is partial, meaning that the printer is able to push some filament through, but it is not enough to print the object properly, leading to visible gaps and missing layers. An early sign of a clogged nozzle is that the filament is not extruded consistently, curls up, and sticks to the nozzle.</p>
<h4>Extruder clicking</h4>
<p>The hotend or the nozzle is partially or fully clogged and the internal resistance against the flow of the filament is greater than what the gears are able to push. As a result, the gears are skipping leading to the “clicking” noise and in most scenarios also to the grinding of the filament.</p>
<h3>How to fix the clogged printer? </h3>
<p>Choosing the right method depends on whether <strong>you are able to at least partially load/unload the filament or whether the printer is fully jammed</strong> and refusing the move the filament even a little.</p>
<p>Before you start fixing the printer, try unloading the filament and removing it completely. If you are unable to do it, it might indicate a more serious problem, but we will deal with this one as well.</p>
<p>Also, move the heatbed downwards from <em>LCD Menu - Settings - Move Axis - Z-axis</em> or by long-pressing the control knob, this way you will get better access to the parts that are clogged.</p>
<h4>Extruder idler screws</h4>
<p>The extruder includes two idler tension screws, to set the correct distance between the drive gear and the two driven gears. These are set to the optimal position at the factory. In case of an intervention on that part, you can adjust the idler tension screws to their optimal position: the tips of the screws must be aligned with the front surface of the Idler Nut. After that, close the Idler Block.</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/DSC_3455-1.jpg" sizes="(min-width: 1024px) 820px, 100vw" srcset="Clogged hotend (XL)" alt="" width="600" height="450" loading="lazy" /></p>
<h4>Gears</h4>
<p>Over time, a deposit of filament debris can form in the grooves of the feeding gear, which then causes insufficient filament extrusion. Access the extruder by lifting the Idler Nut, and then moving the Idle Shaft. You can blow away the dirt with compressed air, or use a brass brush or an ordinary toothpick. Use the access hole on the side of the extruder. </p>
<p><img decoding="async" style="display: block; margin-left: auto; margin-right: auto;" src="https://cdn.help.prusa3d.com/wp-content/uploads/2023/02/XL_Extruder_PrimaryGear_TipTensionBolts.jpg" sizes="(min-width: 1024px) 820px, 100vw" srcset="Regular printer maintenance (XL)" alt="" width="600" height="450" loading="lazy" /></p>
<h4>Nozzle </h4>
<div class="warning-callout"><strong>Do not touch the hotend while the printer is at a hot temperature.</strong> <strong>Heated parts can cause severe burns!</strong> </div>
<div>Follow these steps to clean the nozzle: </div>
<ol>
<li> Heat the nozzle to the appropriate temperature according to the filament material you will be printing from. First, introduce the filament, then insert an <strong>acupuncture needle</strong> (included in the package) or a thin wire (0.3-0.35 mm) into the nozzle from below to a depth of approximately 1-2 cm. <strong>Use protective gloves if material suddenly starts to flow from the nozzle</strong>.</li>
<li> Select the Load Filament option from the LCD menu and check that the nozzle is actually pushing the filament.</li>
<li> Insert the wire or acupuncture needle into the nozzle again and repeat the whole procedure several times. If the filament is extruded correctly, the nozzle is clean.</li>
</ol>
<div class="tip-callout">Are you still having issues? Contact our <a href="http://help.prusa3d.com/article/customer-support_2287">support team</a> and let them know that you tried to fix the issue with these instructions. We will take it from there.</div>


Clogged hotend (XL)

<p>The Original Prusa XL is equipped with a <strong>loadcell</strong>, to detect that the nozzle is close enough to the steel sheet for printing, and to avoid damage that would be caused by the nozzle digging into the steel sheet. </p>
<p>Thanks to this component, incorporated in the hotend heatsink, the first layer calibration is fully automatic: the first layer is calibrated automatically during the <strong>mesh bed leveling</strong>: this procedure is automatically run before each print, on the surface portion where the print will be placed; it can be run at any time, on the full print surface, in <em>LCD Menu - Calibration - Diagnostics - Mesh Bed Leveling</em>. </p>
<p>This also means that there is no setting for steel sheet profiles: on the Original Prusa XL, it is possible to change the steel sheet type, without setting the first layer, as it will be done automatically. </p>
<h3>Testing the loadcell</h3>
<div class="warning-callout"><strong>MAKE SURE THAT THE NOZZE IS NOT HEATED BEFORE PROCEEDING TO THIS TEST! </strong></div>
<p>During the selftest, the loadcell will be tested: the printer will show the instructions for testing it. </p>
<p>Alternatively, the loadcell testing can be initiated in <em>LCD Menu - Calibration - Diagnostics - Loadcell Test</em>. </p>
<p>During the test, see if the numbers shown on the screen will change. In case the number does not change when you tap the nozzle, please contact our <a href="http://help.prusa3d.com/article/customer-support_2287">customer support</a></p>
<p> </p>


Loadcell (XL)

<h3>What happened?</h3>
<p>The printer displays the message <strong>"Failed to home the X-axis, make sure there is no obstacle on X-axis or Y-axis."</strong></p>
<p>Error name: Homing error X</p>
<p>Error code: #17304</p>
<p>The error is most likely caused by a bad movement of the tool head along the X-axis. </p>
<h3>How to fix it? </h3>
<h4>Make sure the X-axis can move correctly</h4>
<p>Make sure there are no obstructions in the path of the X-axis. For example, there might be a piece of filament stuck around the belt, or on a linear rail, from a previous print. </p>
<h4>Check the tension of your belts</h4>
<p>Attach the belt tensioner on the top belt on the X-axis, and check where the pointer is. Repeat the test for the bottom belt on the X-axis. The ideal position of the pointer is in the center area of the belt tensioner, closer to the max mark. In case there is any difference between the two results, or the pointer on the belt tensioner is not in its ideal position, it will be necessary to adjust the belt tension. </p>


Homing error X #17304 (XL)

Original Prusa Curing and Washing Machine (CW1S) is a recommended accessory for the Original Prusa SL1S

Original Prusa CW1 to CW1S platform upgrade

Original Prusa Enclosure assembly

Original Prusa XL - beta test

Original Prusa XL unpacking

The Original Prusa i3 MK3S+ is the successor of the award-winning Original Prusa i3 MK2S 3D printer.

Original Prusa i3 MK3S+ kit assembly

Original Prusa SL1 to SL1S SPEED upgrade

Original Prusa MINI+ kit assembly

The Original Prusa MINI+ is a compact 3D printer with all the bells and whistles you would expect from the creators of the award-winning Original Prusa i3 MK2 and MK3S!

Original Prusa MINI+ semi-assembled

Original Prusa i3 to MMU2S upgrade

Original Prusa i3 MK3/MK3S to MK3S+ upgrade

Original Prusa SL1 3D printer is based on the MSLA printing process. Unlike Original Prusa i3 machines, this printer uses a high-resolution LCD panel and a UV LED to cure thin layers of resin to achieve an unprecedented level of detail.

Original Prusa SL1 kit assembly

The Original Prusa i3 MK3S is the successor of the award-winning Original Prusa i3 MK3 3D printer.

Original Prusa i3 MK3S kit assembly

Original Prusa i3 MK1 to MK2 upgrade

Original Prusa i3 Plus 2.85 mm to 1.75 mm upgrade

Original Prusa i3 Plus 1.75 mm to MK2S upgrade

Original Prusa i3 Plus 1.75 mm kit assembly

Original Prusa i3 MK2 to MK2S upgrade

Original Prusa i3 MK2/S to MMU1 upgrade

The Original Prusa MINI/MINI+ is a compact 3D printer with all the bells and whistles you would expect from the creators of the award-winning Original Prusa i3 MK2 and MK3S!

Original Prusa MINI assembly

Original Prusa i3 MK2S is a successor to Original Prusa i3 MK2 with small hardware tweaks for easier assembly and improved reliability.

Original Prusa i3 MK2S kit assembly

Original Prusa i3 MK2 kit assembly

Original Prusa i3 MK2S to MK3 upgrade

The Original Prusa i3 MK3 is the successor of the award-winning Original Prusa i3 MK2 3D printer.

Original Prusa i3 MK3 kit assembly

Original Prusa i3 MK3 to MK3S upgrade

Original Prusa i3 MK2 MMU1 to MK2.5S MMU2S

Original Prusa i3 MK2 to MK3S upgrade

Original Prusa i3 MK3/MK2.5 to MMU2 v1.01

Original Prusa i3 MK2.5 to MK2.5S upgrade

Original Prusa i3 MK2 to MK2.5S upgrade

Assembly manuals

Basic calibration

Advanced calibration

What to do when the printer reports an error message during calibration.

Calibration Error Messages

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

Slicing

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

Using the printer

Print Quality Troubleshooting

Printer troubleshooting

QR Error codes

Print Error Messages

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

Troubleshooting

Nozzles

Octoprint

Printer simulator

Protective Shields

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

3rd party accessories & Other projects

About PrusaSlicer

Configuration and profiles

User interface

Input/output

Left toolbar

Top toolbar

Print settings

Filament settings

Printer settings

Advanced features

Multi-material slicing

SLA slicing

Other (PrusaSlicer)

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

PrusaSlicer

1. Introduction

2. Printer unpacking

3. Printer set up

4. First run

Manual changelog

<h3>What happened?</h3>
<p>The Original Prusa XL will display the message "<strong>Extruder Maxtemp error: Check the thermistor wiring for potential damage</strong>" if the printer's nozzle temperature goes above 295 ºC at any point. This is a safety feature to prevent printer damage and fire. In this case, the printer will stop the heating and display the message on the screen. The printer then waits for the user to inspect all parts and if needed fix the issue.</p>
<p>Error name: Hotend Maxtemp error</p>
<p>Error code: #17206</p>
<h3>How to fix it?</h3>
<p>The error might indicate some issue with the wiring, either the heater or the thermistor cables are possibly damaged.</p>
<h4>A visual inspection</h4>
<p>Before breaking out the multimeter you should check the Dwarf board, where the thermistor and heater reside, to ensure that no wires have broken off, or are disconnected. </p>
<div class="warning-callout">Before you start, make sure:</p>
<ul>
<li>the filament is unloaded from the extruder</li>
<li>the printer is turned OFF and unplugged from electricity</li>
<li>the hotend and the heatbed are cooled down to ambient temperature</li>
</ul>
</div>
<div class="note-callout">Since we will handle tools and work with the extruder high above the heatbed, it is necessary to protect it.</div>
<p>Place an empty Prusament cardboard box approximately to the front center part of the heated. Move the X-axis all the way to the front side of the printer, and move the extruder approximately to the center of the X-axis.</p>
<p>Open the dwarf-cover-door to access the Dwarf board.</p>
<p><img decoding="async" style="display: block; margin-left: auto; margin-right: auto;" src="https://cdn.help.prusa3d.com/wp-content/uploads/2023/02/27238ac3f74c4dfc_painted.jpeg" sizes="(min-width: 1024px) 820px, 100vw" srcset="Extruder Maxtemp error #17206 (XL)" alt="" width="600" height="450" loading="lazy" /></p>
<p>Check that all the connectors are secure in their sockets, according to the picture below. Focus on the thermistor and heater cables. Though unlikely, rough shipping or handling could have shaken the heater or thermistor cables loose. </p>
<p><img decoding="async" style="display: block; margin-left: auto; margin-right: auto;" src="https://cdn.help.prusa3d.com/wp-content/uploads/2023/02/b76c0de0cc1f1019_painted.jpeg" sizes="(min-width: 1024px) 820px, 100vw" srcset="Extruder Maxtemp error #17206 (XL)" alt="" width="600" height="450" loading="lazy" /></p>
<h4>Checking the resistance</h4>
<p>The table below describes the correct resistance for each part, as well as what scale you should set your meter to. The hotend thermistor is rated to be <strong>100 kΩ at 25 °C.</strong> To be realistic, with a varying temperature between 20 °C and 30 <strong>°</strong>C, <strong>you can expect a wider range of readings (~80-125 kΩ).</strong></p>
<div class="tip-callout">There can be micro-fractures in the cable, breaking the connections only at certain positions. Therefore, try to move the cable a bit while doing the measurement and see if the value changes drastically.</div>
<table style="width: 100%; height: 162.014px;">
<tbody>
<tr style="height: 59.3472px;">
<td style="width: 30.5147%; height: 59.3472px;">
<h5>Part</h5>
</td>
<td style="width: 39.951%; height: 59.3472px;">
<h5>Resistance</h5>
</td>
<td style="width: 23.0392%; height: 59.3472px;">
<h5>Multimeter scale</h5>
</td>
</tr>
<tr style="height: 51.3333px;">
<td style="width: 30.5147%; height: 51.3333px;">
<p>Hotend thermistor </p>
</td>
<td style="width: 39.951%; height: 51.3333px;">
<p><strong>[80 kΩ - 125 kΩ]</strong></p>
</td>
<td style="width: 23.0392%; height: 51.3333px;">
<p>200kΩ</p>
</td>
</tr>
<tr style="height: 51.3333px;">
<td style="width: 30.5147%; height: 51.3333px;">
<p>Hotend heater</p>
</td>
<td style="width: 39.951%; height: 51.3333px;">
<p><strong>[12.3 Ω - 15.1 Ω]</strong></p>
</td>
<td style="width: 23.0392%; height: 51.3333px;">
<p>200Ω</p>
</td>
</tr>
</tbody>
</table>
<div class="warning-callout"><strong>The part should be cold (room temperature) and unplugged when measuring the resistance!</strong></div>


Extruder Maxtemp error #17206 (XL)

<h3>What happened?</h3>
<p>The printer displays the message <strong>"Failed to home the Y-axis, make sure there is no obstacle on X-axis or Y-axis."</strong></p>
<p>Error name: Homing error Y</p>
<p>Error code: #17305</p>
<p>The error is most likely caused by a bad movement of the tool head along the Y-axis. </p>
<h3>How to fix it?</h3>
<h4>Make sure the Y-axis can move correctly</h4>
<p>Make sure there are no obstructions in the path of the Y-axis. For example, there might be a piece of filament stuck around the belt, or on a linear rail, from a previous print. </p>
<h4>Check the tension of your belts</h4>
<div class="tip-callout">The Original Prusa XL geometry is <strong>CoreXY</strong>: it has one belt for both X and Y axes. </div>
<p>Attach the belt tensioner on the top belt on the X-axis, and check where the pointer is. Repeat the test for the bottom belt on the X-axis. The ideal position of the pointer is in the center area of the belt tensioner, closer to the max mark. In case there is any difference between the two results, or the pointer on the belt tensioner is not in its ideal position, <a href="http://help.prusa3d.com/article/adjusting-belt-tension-xl_401793">adjust your belt to the optimal tension</a>. </p>
<h3> </h3>


Homing error Y #17305 (XL)

<h3>What happened?</h3>
<p>On the Original Prusa XL, communication with the peripheral boards (e.g. Dwarf board) is achieved using the <strong>MODBUS protocol</strong>. In MODBUS, there are two types of devices: the <strong>master </strong>and the <strong>slave</strong>, also known, respectively, as <strong>client </strong>and <strong>server</strong>. On Original Prusa XL firmware, the master is the XLBuddy, and each slave is called <strong>puppy</strong>.</p>
<p>In this context, the word <strong>discovery</strong> refers to the process of identifying each <strong>puppy</strong>, and determining their available functions and communication parameters. In case none of the puppies respond to the XLBuddy requests in this phase, the printer will show the message: "<strong>Puppy discovery error. No puppy found</strong>".</p>
<p>Error name: Puppy discover err</p>
<p>Error code: #17513</p>
<p>The error most likely indicates an issue with a loose, broken, or incorrect connection. </p>
<h3>How to fix it?</h3>
<h4>A visual inspection</h4>
<div class="warning-callout">Before accessing any of the electronic boards, ensure that the printer is <strong>fully cooled down</strong>, and <strong>switched off for at least 10 minutes</strong>. </div>
<p>Inspect the wiring on the Sandwich board for a cable positioned into an incorrect port, a loose connection, or a visibly broken cable. </p>
<h4>Re-flash firmware</h4>
<p><a href="https://help.prusa3d.com/downloads" target="_blank" rel="noopener">Download the firmware</a> and if necessary the bootloader, and transfer it to your USB drive. Make sure to unmount the drive from your operating system before physically removing it.</p>
<p>Insert the USB drive back into the printer and reboot the printer using the reset button directly next to the knob to initiate the flashing procedure. In case the procedure does not start, reboot the printer again by pressing the same reset button, and while the printer is booting up, press once the rotating knob.</p>
<div class="tip-callout">Are you still having issues? Contact our <a href="http://help.prusa3d.com/article/customer-support_2287">support team</a> and let them know that you tried to fix the issue with these instructions. We will take it from there.</div>


Puppy error #17513 (XL)

<h3>What happened? </h3>
<p>In case the printer detects a problem with the modular bed, the display will show the following message: "<strong>Heatbed tile no. #: Damaged tile or wiring. Follow online guide to diagnose</strong>". </p>
<p>Error name: MB heater short</p>
<p>Error code: #17251</p>
<p>The error message includes the number of the affected heatbed tile. The error might indicate an issue with the cable connecting the indicated heatbed tile with the modular bed electronics, or with the heatbed tile itself. </p>
<h3>How to fix it? </h3>
<h4>A visual inspection</h4>
<p>Check that the indicated heatbed cable is correctly connected with the modular bed electronics, and with the heatbed tile, and reseat the connection. </p>
<p>Check the heatbed tile for physical damage, for example a scratch on any heatbed tile surface, or a cable in bad status on the bottom of a heatbed tile. </p>
<h4>Swap the cables</h4>
<p>Swap the heatbed tile connection indicated on the error with another heatbed tile connector, and check if the indicated heatbed tile number in the error changes, or remains the same after the swap. </p>
<p>If the error changes to another heatbed tile number after the cables swap, then the cable is causing the error. </p>
<p>If the error is still the same as before, with the same error code, and on the same heatbed tile number after the swap, most likely the heatbed tile is causing the error. </p>
<div class="tip-callout">If your findings are different than these two cases, or in case of any doubts, do not hesitate to contact our <a href="http://help.prusa3d.com/article/customer-support_2287">customer support</a>.</div>


Modular bed error #17251 (XL)

<h3>What happened?</h3>
<p>The printer is showing the message: "<strong>Emergency stop invoked by G-code (M112)</strong>".</p>
<p>Error name: Emergency stop</p>
<p>Error code: #17510</p>
<p>This error message can be triggered during serial printing (e.g. Octoprint) and blocks the printer control. </p>
<h3>How to fix it?</h3>
<p>Temporarily disconnect from your Original Prusa XL any external device, reboot the printer, and try printing using a FAT32 formatted USB drive. See if a different error would occur while printing via USB drive, and check the guide relative to the new error. </p>
<div class="tip-callout">Are you still having issues? Contact our <a href="http://help.prusa3d.com/article/customer-support_2287">support team</a> and let them know that you have tried to fix the issue with these instructions. We will take it from there.</div>


Emergency stop #17510 (XL)

<h3>What happened?</h3>
<p>On the Original Prusa XL, communication with the peripheral boards (e.g. Dwarf board) is achieved using the <strong>MODBUS protocol</strong>. In MODBUS, there are two types of devices: the <strong>master </strong>and the <strong>slave</strong>, also known, respectively, as <strong>client </strong>and <strong>server</strong>. On Original Prusa XL firmware, the master is the XLBuddy, and each slave is called <strong>puppy</strong>.</p>
<p>A <strong>fingerprint</strong> is a unique identifier of a specific version of the firmware. The Original Prusa XL checks the fingerprint of the puppies, to ensure the firmware flashed on the peripheral boards is compatible with the printer, and the boards are safe to use. In case this procedure did not occur in the correct time window, the printer will show the message: "<strong>Waiting for fingerprint timed out</strong>".</p>
<p>Error name: Puppy fingerprint timeout</p>
<p>Error code: #17521</p>
<h3>How to fix it?</h3>
<p><a href="https://help.prusa3d.com/downloads" target="_blank" rel="noopener">Download the firmware</a> and if necessary the bootloader, and transfer it to your USB drive. Make sure to unmount the drive from your operating system before physically removing it.</p>
<p>Insert the USB drive back into the printer and reboot the printer using the reset button directly next to the knob to initiate the flashing procedure. In case the procedure does not start, reboot the printer again by pressing the same reset button, and while the printer is booting up, press once the rotating knob.</p>
<div class="tip-callout">Are you still having issues? Contact our <a href="http://help.prusa3d.com/article/customer-support_2287">support team</a> and let them know that you tried to fix the issue with these instructions. We will take it from there.</div>


Puppy error #17521 (XL)

<h3>What happened?</h3>
<p>On the Original Prusa XL, communication with the peripheral boards (e.g. Dwarf board) is achieved using the <strong>MODBUS protocol</strong>. In MODBUS, there are two types of devices: the <strong>master </strong>and the <strong>slave</strong>, also known, respectively, as <strong>client </strong>and <strong>server</strong>. On Original Prusa XL firmware, the master is the XLBuddy, and each slave is called <strong>puppy</strong>.</p>
<p>XLBuddy firmware includes all the needed files for XLBuddy and puppies, including bootloaders. In case an incompatible bootloader is flashed, the printer will show the message: "<strong>Puppy uses incompatible bootloader protocol #, Buddy FW requires #</strong>".</p>
<p>Error name: Puppy incompatible bootloader</p>
<p>Error code: #17515</p>
<p>The error message will include the bootloader version that is flashed, and the bootloader number that should be installed. </p>
<h3>How to fix it?</h3>
<p>The firmware for all puppies is part of the Original Prusa XL firmware and bootloader files. <a href="https://help.prusa3d.com/downloads" target="_blank" rel="noopener">Download the indicated official firmware and bootloader</a>, and flash both files. </p>
<div class="tip-callout">Are you still having issues? Contact our <a href="http://help.prusa3d.com/article/customer-support_2287">support team</a> and let them know that you tried to fix the issue with these instructions. We will take it from there.</div>


Puppy error #17515 (XL)

<h3>What happened?</h3>
<p>The Original Prusa XL can detect a power fault on the Modular Bed, with hardware measurements: in case this happens, the printer will show the message <strong>"Power failure"</strong>.</p>
<p>Error name: Modular Bed Error</p>
<p>Error code: #17319</p>
<h3>How to fix it? </h3>
<h4>A visual inspection</h4>
<div class="warning-callout">Before accessing any of the electronic boards, ensure that the printer is <strong>fully cooled down</strong>, and <strong>switched off for at least 10 minutes</strong>. </div>
<div>
<p>Inspect the modular bed for physical damage, such as scratches on any of the heatbed tiles surface. </p>
<p>Inspect the wiring between the Sandwich board and the Modular Bed for a loose connection, or a broken cable.  </p>
<div class="tip-callout">In case of any further doubts, do not hesitate to contact our <a href="http://help.prusa3d.com/article/customer-support_2287">customer support</a>.</div>
</div>


Modular Bed Error #17319 (XL)

<h3>What happened?</h3>
<p>When trying to flash the firmware on your Original Prusa XL, the printer shows the error: "<strong>Firmware in the internal flash corrupted! Please reflash the firmware.</strong>"</p>
<p>Error name: FW in internal flash corrupted</p>
<p>Error code: #17608</p>
<p>This error is shown when the firmware file in the USB drive is damaged, causing the firmware flashing procedure to fail. </p>
<h3>How to fix it?</h3>
<p><a href="https://help.prusa3d.com/downloads" target="_blank" rel="noopener">Download the firmware</a> and if necessary the bootloader, and transfer it to your USB drive. Make sure to unmount the drive from your operating system before physically removing it.</p>
<p>Insert the USB drive back into the printer and reboot the printer using the reset button directly next to the knob to initiate the flashing procedure. In case the procedure does not start, reboot the printer again by pressing the same reset button, and while the printer is booting up, press once the rotating knob.</p>
<p>If the issue persists, the problem might be in the USB flash drive. Find any other USB drive in your household, make sure it is formatted to FAT32, copy both firmware files, and repeat the previously described procedure.</p>
<div class="tip-callout">Are you still having issues? Contact our <a href="http://help.prusa3d.com/article/customer-support_2287">support team</a> and let them know that you tried to fix the issue with these instructions. We will take it from there.</div>


FW in internal flash corrupted #17608 (XL)

<h3>What happened?</h3>
<p>While flashing firmware to your Original Prusa XL, an error might occur, and the screen will display the following message: "<strong>Error erasing flash! Restart the printer and try again</strong>".</p>
<p>Error name: Flash erase error</p>
<p>Error code: #17605</p>
<p>This error is shown when the printer has failed to delete the internal <strong>flash memory</strong>, so the new firmware can't be flashed.</p>
<h3>How to fix it? </h3>
<h4>Re-flash firmware</h4>
<p><a href="https://help.prusa3d.com/downloads" target="_blank" rel="noopener">Download the firmware</a> and if necessary the bootloader, and transfer it to your USB drive. Make sure to unmount the drive from your operating system before physically removing it.</p>
<p>Insert the USB drive back into the printer and reboot the printer using the reset button directly next to the knob to initiate the flashing procedure. In case the procedure does not start, reboot the printer again by pressing the same reset button, and while the printer is booting up, press once the rotating knob.</p>
<p>If the issue persists, the problem might be in the USB flash drive. Find any other USB drive in your household, make sure it is formatted to FAT32, copy both firmware files, and repeat the previously described procedure.</p>
<h4>A visual inspection</h4>
<div class="warning-callout">Before accessing the XLBuddy board, ensure that the printer is <strong>fully cooled down</strong>, and <strong>switched off for at least 10 minutes</strong>. </div>
<p>Access the XLBuddy board, and inspect it for any damage. </p>
<div class="tip-callout">Are you still having issues? Contact our <a href="http://help.prusa3d.com/article/customer-support_2287">support team</a> and let them know that you tried to fix the issue with these instructions. We will take it from there.</div>


Flash erase error #17605 (XL)

<h3>What happened? </h3>
<p>The printer is showing the message: "<strong>Overcurrent detected</strong>". </p>
<p>Error name: MB overcurrent</p>
<p>Error code: #17302</p>
<p>An LED on the Modular Bed lights up when this error occurs. The error indicates an issue with the control of the current flowing into the Modular Bed and its heatbed tiles. </p>
<h3>How to fix it? </h3>
<h4>A visual inspection</h4>
<div class="warning-callout">Before accessing any of the electronic boards, ensure that the printer is <strong>fully cooled down</strong>, and <strong>switched off for at least 10 minutes</strong>. </div>
<p>Inspect the wiring between the Sandwich board and the Modular Bed for a loose connection, or a broken cable.  </p>
<p>Inspect the modular bed for physical damage, such as scratches on any of the heatbed tiles surface. </p>
<div class="tip-callout">In case of any further doubts, do not hesitate to contact our <a href="http://help.prusa3d.com/article/customer-support_2287">customer support</a>.</div>


Modular bed error #17302 (XL)

<h3>What happened?</h3>
<p>On the Original Prusa XL, communication with the peripheral boards (e.g. Dwarf board) is achieved using the <strong>MODBUS protocol</strong>. In MODBUS, there are two types of devices: the <strong>master </strong>and the <strong>slave</strong>, also known, respectively, as <strong>client </strong>and <strong>server</strong>. On Original Prusa XL firmware, the master is the XLBuddy, and each slave is called <strong>puppy</strong>. </p>
<p>If one of the puppies does not respond to a request from XLBuddy within a specified time period, the printer will show the message: "<strong>Waiting for puppies to start timed out</strong>".</p>
<p>Error name: Puppy run timeout</p>
<p>Error code: #17522</p>
<p>The error most likely indicates a disconnection or fault with a cable connected to a peripheral board, that happened during a printer operation. </p>
<h3>How to fix it?</h3>
<h4>A visual inspection</h4>
<div class="warning-callout">Before accessing any of the electronic boards, ensure that the printer is <strong>fully cooled down</strong>, and <strong>switched off for at least 10 minutes</strong>. </div>
<p>Inspect the wiring between the Sandwich board and the indicated puppy board for a cable positioned into an incorrect port, a loose connection, or a visibly broken cable. </p>
<h4>Re-flash firmware</h4>
<p><a href="https://help.prusa3d.com/downloads" target="_blank" rel="noopener">Download the firmware</a> and if necessary the bootloader, and transfer it to your USB drive. Make sure to unmount the drive from your operating system before physically removing it.</p>
<p>Insert the USB drive back into the printer and reboot the printer using the reset button directly next to the knob to initiate the flashing procedure. In case the procedure does not start, reboot the printer again by pressing the same reset button, and while the printer is booting up, press once the rotating knob.</p>
<div class="tip-callout">Are you still having issues? Contact our <a href="http://help.prusa3d.com/article/customer-support_2287">support team</a> and let them know that you tried to fix the issue with these instructions. We will take it from there.</div>


Puppy error #17522 (XL)

<h3>What happened?</h3>
<p>When flashing the firmware, you might get the message "<strong>Firmware file missing in the USB flash!</strong>".</p>
<p>Error name: No FW on USB flash drive</p>
<p>Error code: #17604</p>
<p>This error happens when you attempt flashing firmware on the Original Prusa XL, but the printer does not find any firmware in the USB drive that can be uploaded to the printer.</p>
<h3>How to fix it?</h3>
<p><a href="https://help.prusa3d.com/downloads">Download the firmware</a> and if necessary the bootloader, and transfer it to your USB drive. Make sure to unmount the drive from your operating system before physically removing it.</p>
<p>Insert the USB drive back into the printer and reboot the printer using the reset button directly next to the knob to initiate the flashing procedure. In case the procedure does not start, reboot the printer again by pressing the same reset button, and while the printer is booting up, press once the rotating knob.</p>
<p>If the issue persists, the problem might be in the USB flash drive. Find any other USB drive in your household, make sure it is formatted to FAT32, copy both firmware files and repeat the previously described procedure.</p>
<div class="tip-callout">Are you still having issues? Contact our <a href="http://help.prusa3d.com/article/customer-support_2287">support team</a> and let them know that you tried to fix the issue with these instructions. We will take it from there.</div>


No FW on USB flash drive #17604 (XL)

<h3>What happened?</h3>
<p>While flashing firmware to your Original Prusa XL an error might occur, and the screen will display the following message: "<strong>Firmware/printer types do not match. Make sure you have the right firmware file for your printer model</strong>".</p>
<p>Error name: Unsupported printer type</p>
<p>Error code: #17610</p>
<p>This error is shown when firmware made for another printer model is flashed on the Original Prusa XL. </p>
<h3>How to fix it?</h3>
<p>Go to the <a href="https://help.prusa3d.com/downloads" target="_blank" rel="noopener">Downloads page</a>, and make sure you are selecting the XL firmware. </p>
<p>Unzip the files, and transfer them to your USB drive. Make sure to unmount the drive from your operating system before physically removing it.</p>
<p>Insert the USB drive back into the printer and reboot the printer using the reset button directly next to the knob to initiate the flashing procedure. In case the procedure does not start, reboot the printer again by pressing the same reset button, and while the printer is booting up, press once the rotating knob.</p>
<p>If the issue persists, the problem might be in the USB flash drive. Find any other USB drive in your household, make sure it is formatted to FAT32, copy both firmware files and repeat the previously described procedure.</p>
<div class="tip-callout">Are you still having issues? Contact our <a href="http://help.prusa3d.com/article/customer-support_2287">support team</a> and let them know, that you have tried to fix the issue with these instructions. We will take it from there.</div>


Unsupported printer model #17610 (XL)

<h3>What happened?</h3>
<p>When trying to install non-official firmware on your Original Prusa XL, the screen shows "<strong>Firmware signature verification failed! Only official signed firmware can be flashed</strong>".</p>
<p>Error name: Signature verification failed</p>
<p>Error code: #17606</p>
<p>The error is issued when your Original Prusa XL has detected an attempt to flash firmware that does not have the private key signature that verifies the firmware as being official.</p>
<h3>How to fix it?</h3>
<p>The Original Prusa XL in its factory state only accepts official firmware. In order to flash a custom firmware, you need to break the appendix on the XLBuddy board.</p>
<div class="warning-callout">Breaking the seal on the mainboard of the Prusa XL is <strong>IRREVERSIBLE </strong>and leads to the<br /><strong>VOIDING OF THE WARRANTY</strong> ON ELECTRONIC PARTS OF THE PRINTER. If you break the<br />seal, we disclaim any responsibility for any damage to the printer and/or its surroundings (e.g.<br />in case of a fire).</div>
<div><img decoding="async" loading="lazy" style="display: block; margin-left: auto; margin-right: auto;" src="https://cdn.help.prusa3d.com/wp-content/uploads/2023/03/NTD_0829_2.jpg" sizes="(min-width: 1024px) 820px, 100vw" srcset="Imposter! Fake signature #17606 (XL)" alt="" width="600" height="450" /></div>


Imposter! Fake signature #17606 (XL)


<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>


Original Prusa XL

Downloads

Firmware 4.5.3

Drivers & Apps 2.5.1

Handbook 1.00

How to

Assembly Instructions