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                  1. Support
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                  3. Different nozzle types
                   

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                  Different nozzle types

                  Relevant for

                  MK4 family
                  XL family
                  MK3.9 family
                  MK3.5 family
                  MINI family
                  +
                  43 comments
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                  The Prusa FFF printers are equipped with a brass nozzle. Brass has excellent heat conductivity and is tough enough to print most common filaments. However, when using abrasive filaments, the brass nozzle tends to wear too quickly, so abrasion-resistant nozzles are available. 

                  Depending on your printer model, the hotend uses either an E3D V6 nozzle or a Prusa Nozzle. If you want to use E3D V6 nozzles on printers designed for the Prusa Nozzle system, a Nextruder V6 Nozzle Adapter is available. 

                  This article provides an overview of the different nozzle types used across our printers and explains how they fit into each system. For more detailed instructions, recommendations, and compatibility information, please follow the links included in each section.

                  Prusa Nozzle

                  Designed for Nextruder-based printers (CORE One, XL, MK4/S, MK3.9/S), the Prusa Nozzle is built for cold, quick swaps and maximum convenience. It is available in a range of materials and diameters. 

                  Check out the detailed information in the dedicated article for Prusa Nozzle types for Nextruder printers

                  E3D V6 nozzles

                  The E3D V6 (and E3D V6-compatible) nozzles are used in the MK3.5/S, MK3/S/+, MINI/+, MK2.5/S, MK2/S, and earlier models. They are a widely adopted standard, but they must be tightened while hot to ensure a proper seal and avoid filament leakage. The filament is led into the heatbreak through a PTFE tube. 

                  Find out all the E3D V6 nozzle types and their details in the dedicated article for E3D V6 Nozzles

                  Nextruder V6 Nozzle Adapter

                  The Nextruder V6 Nozzle Adapter enables your Prusa printer’s Nextruder to accept E3D V6 nozzles.

                  If you need to install or replace a nozzle with a Nozzle Adapter, please refer to our guides: 

                  • Nozzle adapter for CORE One
                  • Nozzle adapter for MK4S, MK3.9S
                  • Nozzle adapter for MK4, MK3.9
                  • Nozzle adapter for XL Single tool, Nozzle adapter for XL Multi tool

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                  Topics

                  • 3rd party accessories & Other projects
                    • Nozzles
                      • E3D V6 Nozzles
                      • Prusa Nozzle types for Nextruder printers
                      • Different nozzle types
                    • Protective Shields
                    • Octoprint

                  23 comments

                  Log in  to post a comment
                  Charles Shapiro
                  •
                  Huh. I bought a 0.4mm hardened steel nozzle for my MK4S and installed it 'cause I want to print glow-in-the-dark filament.

                  The steel nozzle prints Inland Natural PLA just fine, and it seems to purge the black PLA shipped with the printer ok fine as well. But every time I try loading the _orange_ PLA shipped with the printer it angrily refuses to purge. I get the fateful clicking sound as the gears slip, and no filament emerges from the nozzle. Pushing the temperature up to 220 doesn't seem to affect this. If I remove the hardened nozzle and put it over a heat gun then push a piece of Inland Natural PLA into the back end it purges just fine.

                  I've double-checked that both the "High Flow" and the "Hardened Nozzle" options are set in
                  Settings->Hardware->Printhead . Is the orange pigment just stickier against steel? Anyone else reporting this?
                  Reply
                  Jan Kratochvíl
                  •
                  Hello. This sounds like an issue with the filament. Please try to cut aprox. 10cm of filament and try to load it again. Or you can contact our support team for help.
                  Reply
                  Sembazuru
                  •
                  I have some some confusion about the difference between the "E3D Prusa Nozzle: High Flow Brass" https://www.prusa3d.com/product/e3d-prusa-nozzle-high-flow-brass-0-4-mm/ and the "Prusa Nozzle brass CHT" https://www.prusa3d.com/product/prusa-nozzle-brass-cht-0-4-mm/ other than the obvious that the first is $10.50USD more expensive than the second in your store.

                  * Is there any performance difference between the two?
                  * Is there any way to discuss any differences on the internal geometries or other techniques to enable high flow without violating any NDAs?
                  * One weakness of CHT nozzles is the difficulty of cleaning jams because of the multi-path internal geometry. Does the E3D nozzle share that weakness or have a similar weakness?
                  Reply
                  Aniraf
                  •
                  Is there a way to identify CHT nozzles vs. the original non-CHT versions?
                  Reply
                  Jan Kratochvíl
                  •

                  Hello. The standard nozzle has 'PR' printed on it, while the CHT nozzle has 'CHT' printed on it. Additionally, the CHT nozzle has a Bondtech logo on one side of the head (where the dots are).

                  Reply
                  Byron
                  •
                  Does the nozzle size in firmware really matter?  I'm trying to use a 0.5 nozzle and the firmware setup only offers fixed selections of .25, .4, .6, .8.  I have this 0.5 I'd like to use and a 1.0, but of course no option to enter my own nozzle size into firmware.I get that I'll need to write my own PrusaSlicer profile since none are offered stock for 0.5.  But that's not a big deal because I've already had to do that for my 0.6 as the stock profiles for anything but 0.4 are frankly so ill-tuned as to be useless without heavy modifications.But the firmware, that I didn't expect to lock me into fixed values...?  Especially seeing as how Prusa themselves apparently has been selling 0.5 nozzles for at least two years now and yet no firmware support?
                  Reply
                  j.Moen
                  •
                  Having same issue here. I have a .2 and .3 nozzle, neither of which is in the printer firmware. It seems to be just the nozzle checking feature that is affected. So you get the message about nozzle size error, but you can just print anyway. It prints fine. But you gotta be sure the right nozzle is actually in there. My kids like to print too, so now we all need to be aware what size nozzle is in there to avoid mistakes. Bummer you can't add sizes to the firmware, like adding extra print plates.
                  Reply
                  Juzam
                  •
                  Can we use MK8 nozzles with the nextruder adapter since the MK4 uses loadcell calibration?
                  Reply
                  Skirfir
                  •
                  I recently ordered a MK8 nozzle by accident and I realised my mistake when I assembled it because the thread of a MK8 nozzle is shorter than that of a V6 nozzle which means that you can't tighten the nozzle against the adapter and it would leak.
                  Reply