What Is Combing - Within Infill Equivalent of Cura in PrusaSlicer?
 
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What Is Combing - Within Infill Equivalent of Cura in PrusaSlicer?  

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notalentgeek
(@notalentgeek)
New Member
What Is Combing - Within Infill Equivalent of Cura in PrusaSlicer?

I suppose the title says it all.... I was using Cura and now PrusaSlicer. Although I know that in PrusaSlicer, combing = "avoid crossing parameter", I still don't know what are other combing settings of Cura in PrusaSlicer, especially the combing - within infill (and even combing - all).

Posted : 30/07/2021 2:51 pm
bobstro
(@bobstro)
Illustrious Member
°

Cura's "combing" covers the movement of the nozzle across perimeters. It's primarily to reduce stringing. PrusaSlicer has several settings that are roughly equivalent:

  • Only infill where needed (not an exact match for combing, but related)
  • Only retract when crossing perimeters reduces retractions to only where they will improve stringing.

  • Avoid crossing perimeters will detour nozzle movement to keep it within infill if possible to avoid crossing the perimeters where stringing commonly occurs.

These don't do exactly the same things in all instances but are a close equivalent. You'll find the "coasting" feature in Cura isn't exactly replicated in PrusaSlicer. Prusa prefers to use Linear Advance to achieve the same goal using a better method.

My notes and disclaimers on 3D printing and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan...
Posted : 30/07/2021 3:02 pm
notalentgeek
(@notalentgeek)
New Member
Topic starter answered:
°

I see... okay. Pretty much explained. So, if I always use combing - within infill in Cura, in PrusaSlicer I would leave "avoid crossing parameters" to always be checked, pretty much.

Thanks!

Posted : 30/07/2021 3:22 pm
bobstro
(@bobstro)
Illustrious Member
Posted by: @notalentgeek

I see... okay. Pretty much explained. So, if I always use combing - within infill in Cura, in PrusaSlicer I would leave "avoid crossing parameters" to always be checked, pretty much.

Pretty close, yes. Having your extrusion multiplier calibrated will reduce the problem in the 1st place. Having done that, a bit of retraction tuning should help. But yes, if you are experiencing stringing, these settings can help mask the problem.

My notes and disclaimers on 3D printing and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan...
Posted : 30/07/2021 5:41 pm
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