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Automatic nozzle cleaning on Prusa MK4S?  

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Mižufko
(@mizufko)
Member
Automatic nozzle cleaning on Prusa MK4S?

Hi everyone,I'm curious if there's any kind of automatic nozzle cleaning system for the Prusa MK4S, similar to BambuLab's Wiper system. I know Prusa uses the purge line at the start of the print. But it would be great to have a solution that cleans the nozzle without constant supervision.

I know this might be overkill, but has anyone come up with a mod or any automatic cleaning method during the print?

Thanks for any tips!

Posted : 07/03/2025 6:57 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Automatic nozzle cleaning on Prusa MK4S?

the mk4 goe4s through a nozzle cleaning cycle before every print

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility.Location Halifax UK

Posted : 07/03/2025 8:11 pm
Mižufko
(@mizufko)
Member
Topic starter answered:
RE: Automatic nozzle cleaning on Prusa MK4S?

That's not something I wouldn't know, I even wrote it there. I'm trying to find a better solution for that, one that can clean the nozzle completely.

Posted : 07/03/2025 8:19 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Automatic nozzle cleaning on Prusa MK4S?

I am sorry to have offended you, My mk3.9 goes through a nozzle cleaning cycle as part of the mesh bed levelling sequence before any purge line is printed.  which is why I mentioned it. I am guessing the Mk4 does similar. 
I read a thread earlier (After I replied to  you) where people were discussing using a silicone brush, 
I have no idea whether it's useful or not 
https://www.printables.com/model/1197941-prusa-mk4-nozzle-wiper
I use MMU3 so My extruder is empty at the beginning of a print, and is unloaded after every print. 

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility.Location Halifax UK

Posted : 07/03/2025 11:39 pm
iftibashir
(@iftibashir)
Noble Member
RE: Automatic nozzle cleaning on Prusa MK4S?

You could add a wiper and manually edit G-Code to wipe the nozzle before it starts printing......

Or get a MMU3 where its like a cod pull every time!! lol

Click here for VIDEO BUILD GUIDES + 3D Printing Tips!

--> Core One - MK4 - MK4S - MINI+ - MMU3 - Accelerometer Guide <--

Posted : 10/03/2025 3:27 pm
PCR
 PCR
(@pcr)
Active Member
RE: Automatic nozzle cleaning on Prusa MK4S?

https://www.printables.com/model/1199264-prusa-core-one-wiper

Posted by: @mizufko

Hi everyone,I'm curious if there's any kind of automatic nozzle cleaning system for the Prusa MK4S, similar to BambuLab's Wiper system. I know Prusa uses the purge line at the start of the print. But it would be great to have a solution that cleans the nozzle without constant supervision.

I know this might be overkill, but has anyone come up with a mod or any automatic cleaning method during the print?

Thanks for any tips!

 

Posted : 10/03/2025 3:52 pm
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