Hi, I am having trouble to slice and print several of the BB parts. Especially those with a 0.5mm chamfer at the bottom are always missing layer 3 (with 0.2mm layer height in S3D). I know the S3D workaround to reduce the 1st layer height to 99% but this has other drawbacks. The only solution I currently have is to re-design the parts without the chamfer (which is not too much fun). The screenshot shows the problem. Left part (z_axis_guide_bottom_cap_x4.stl) re-engineered without chamfer, slicing is ok. Right part is the original part, layer 3 is missing. Has someone else noticed this problem? Any proposal how to solve this?