Little particles on the Inside Corners
I’m not sure what to call this phenomena, but basically little particles form on the inside corner(s) of your print and create a little worm-like structure along with some stringing. The example pictured on the right is printed with the same settings as you would choose for a vase: zero infill, zero top layers. However, there is an additional structure in the middle of the part.
Solution: In Slic3r configuration under Print Settings > Infill , uncheck “Only retract when crossing perimeters.” What happens is Slic3r thinks that the nozzle is still within a filled layer even though infill is set to zero, and doesn’t recognize that you want two clean and distinct boundaries.
Problem: “The base of my part is warping.”
Try these tips:
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Bruce Mui is a 3D Printer hobbies, 4 years experience in DIY set 3D printer printing and repair service.