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Thin Wall Optimization Formula  

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shorton
(@shorton)
Eminent Member
Thin Wall Optimization Formula
I've got a design with some thin walls, I want to optimize for printing on my MK3S.  In Prusa Slicer there is a note (highlighted in the attached image) showing the recommended widths for a specific number of lines.   It is not linear.   e.g. 2 lines works out to 0.43/line, but 6 lines comes out to 0.415/line.
 
Anyone know what the actual formula is?
 
 
 

Best Answer by shorton:

I found it.  Also found if you check "detect thin walls" it give more values than the multiples of 2.

Formula for posterity is:

wall=number_of_perimeters * extrusion_width - layer_height * (1 - PI/4) * (number_of_perimeters - 1)

From:
https://forum.prusa3d.com/forum/original-prusa-i3-mk3s-mk3-hardware-firmware-and-software-

 

 

 

 

This topic was modified 4 years ago 2 times by shorton
Posted : 28/07/2020 1:47 pm
shorton
(@shorton)
Eminent Member
Topic starter answered:
RE: Thin Wall Optimization Formula

I found it.  Also found if you check "detect thin walls" it give more values than the multiples of 2.

Formula for posterity is:

wall=number_of_perimeters * extrusion_width - layer_height * (1 - PI/4) * (number_of_perimeters - 1)

From:
https://forum.prusa3d.com/forum/original-prusa-i3-mk3s-mk3-hardware-firmware-and-software-

 

 

 

 

Posted : 28/07/2020 3:06 pm
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