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Purge Tower - floating final layer  

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JsNewProject
(@jsnewproject)
Member
Purge Tower - floating final layer

I am having an issue when I am slicing multi-color prints for my MK4S with a MMU3.

On the purge/wipe tower, PrusaSlicer seems to be adding an extra layer at the very end of the print but it is floating above the tower as the last color change was  multiple layers before the print is done.

This file is from Printables here: https://www.printables.com/model/1153844-flexi-crocodile/files

I have tried both the STL and 3MF and get the same result.

Posted : 08/08/2025 7:07 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Purge Tower - floating final layer

when the printer unloads at the end of the print, it goes through a ramming process to form the end of the filament ready for the next re load, This filament is the result of that ramming process. 
it is design intent

 

Regards Joan

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 : 08/08/2025 7:16 pm
JsNewProject
(@jsnewproject)
Member
Topic starter answered:
RE: Purge Tower - floating final layer

Thank you, I was concerned it would try to print in the air and either waste filament or get entangled with the print.

Posted : 08/08/2025 7:29 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Purge Tower - floating final layer

it will print in the air, however it's unlikely to cause a problem, this final purge is necessary, not waste. 

regards Joan

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 : 08/08/2025 8:24 pm
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