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3+ colors , single layer, wipe tower, purge  

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Simon
(@simon-6)
Active Member
3+ colors , single layer, wipe tower, purge

Greetings,

assuming I have a white in slot one, black in slot 2 and dark green in slot 3, clearly my purge volume needs to be adjusted higher when going from either dark color to white otherwise it'll show.  on a single layer, will prusaslicer try and optimize the order in which the color are used, where it would do black to green to white or green to black to white but never black to white to green ? 

Given that I have at least twice purge volume going to white, it would be great (if it doesn't already do it) to factor the purge amount in the slicing process

thanks

Simon

Veröffentlicht : 27/11/2025 10:31 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: 3+ colors , single layer, wipe tower, purge

Prusa slicer prints filaments sequentially and holds the last filament off the current layer, to be the first filament on the next layer, assuming the filament is due to print on the next layer.

So layer 1 in a three filament print will go

Fil1, fil2, fil3 

Layer 2 will go 

Fil3, fil1 fil2

Layer3 will  go 

Fil2, fil1, fik3

Layer 4 will go 

Fil3, fil1, fil2

Etc.

if a filament doesn't appear on a layer, slicer passes it in the selection process

You can customise the purge volumes, per transition, in slicer, so you can increase black to white, and green to white. And leave other changes standard

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

Veröffentlicht : 28/11/2025 10:34 am
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