I’ve been designing a modular soap dish, and I’m hoping to get rid of this artifact around the outer wall. The interior bottom is sloped to allow for drainage. This artifact seems to line up with that slope. This was printed on the A1 Mini with high speed pla, .2mm layer height, .4mm nozzle, Arachne wall generator, 2 wall loops. I saw this same artifact on a soap dish I already put up on MakerWorld.
I printed one of these Soap Club dishes with 3 wall loops, and that didn’t help. I think I tried reversing the print order from inner/outer to outer/inner too.
If anyone knows how to get rid of this artifact, I would appreciate some help.
It’s because the layer time greatly decreases when the wall finishes. Try changing the minimum layer time in filament settings until when you view it in the slicer all of the layer times look the same.
Adding a fillet between the interior wall and bottom may help. It would make the change in layer time less abrupt, strengthen the wall, and also make the dish easier to clean.
wont change at all… the issue is because of layer time, one is greater then the other, adding a fillet wont change that drastic gap from one to another, you can try lowering speeds on outer walls and inner walls to try to match the top flow
I think I understand what’s happening. When the printer is printing the interior sloped bottom, it is providing unintentional extra cooling to the outer walls near where the printhead is working. This is why the artifact follows the angle of the sloped bottom.
I printed one with 80mm/s exterior wall speed, which didn’t work. I printed one with 4 wall loops and higher infill, which didn’t work. I also tried printing infill first, which didn’t work. I did find that the print needs 3 walls to be opaque. My original 2 wall prints are all a little transparent.
Thanks for the suggestions. I think for now I’ll make a version that isn’t self draining, with a flat interior bottom.
