3DPrinting @lemmy.world Xzi @lemmy.world 1y ago

Need help removing triangles in PrusaSlicer

Hey y'all. I am trying to do a max perimeter style print, and want to know how to remove these smaller sections. I know I could reduce wall count until I remove them, however that isnt dynamic, and leaves larger gaps than I want in other areas. Is there a setting in PrusaSlicer im missing? I messed around with a few but they didnt give me the results I was looking for.

18 comments

Why do you want to remove them?
- They dramatically increase print times and increase blemishes. It's such a small surface area, that it just ends up creating blobs and shakes the printer.
  
  If you’re finding you’re printer is shaking too much, consider adjusting the acceleration/jerk settings
  
  it’ll slow prints down- the maximum axcel/jerk will limit the top speed for the very short moves, longer moves remain mostly unaffected- but it will improve print quality.
The triangles are a result of the print "wall" changing thickness. Look at the corner on the left. All 10 perimeter lines go all the way round. If 10 go in and 10 come out, we need extra perimeter lines in the corner to fill the extra width. That's why there are triangles.

I imagine you could fix this by making the walls the same thickness at all points, but without trying I can't be sure.
Can't you make the infill concentric? That should help.
- Isn't that possible only for top/bottom layer?
  
  Set top and bottom solid layers to 1. Set infill to concentric and then set infill percentage to 100%.
  
  It should get rid of most triangles.
- Yellow is perimeter lines, the goal is to not use infill at all, and to just use multiple perimeter passes.
  
  Why?
If this is a one off, you could try manually removing the lines of gcode for those traces. Though this would get tiresome if you wanted to do this a lot.

18 comments