Just tested this as I'm currently interested in how different versions of s3d handle model files:
S3D v4.1.2 -> Seperate connected surfaces -> 3 parts
One of them (lower inner cylinder) shows problems in viewport already:
Slicing preview shows notch/cylinder starting at the same height but the lower center hole is missing.
S3D v4.0.0 -> Seperate connected surfaces -> "The selected mesh is already a single connected surface"
Slicing preview looks like the original poster mentioned, the lower cylinder starts when that "notch" part
is printed.
Webfeger wrote:
Anybody can help me to find the reason?
Sorry if that doesn't really help you right now. But you might want to add a factory file of how you've setup
the part to print/slice so others can see exactly what's going on: "File -> Save Factory File..."
Note: I didn't do any further tests nor am I saying the model is ok/faulty. I'm just interested in how
different versions (and other slicers) handle this (the two others I've tested do properly in this case).
bye,
Daniel