“Parasolid could always resolve more of them, and it did that with fairly sloppy tolerances”
Doesn’t that come down to the precision, 1.e-7?
Doesn’t that come down to the precision, 1.e-7?
Parasolid is happy to work to whatever precision it is asked to use. The system driving it is where the choices are.
Sloppy tolerances really equal dynamic tolerance based on model geometry size.
Really, there have been a few different ways to approach this:
Some systems use a well defined tolerance and that results in a bounded model space.
Others do not put a boundary on the model space, but then the tolerance varies by size.
And the third way is to just set a loose tolerance on difficult blends and expect the troubles to come along for the ride. User does that when a blend fails.
With fillets specifically, a relaxed tolerance allows many of them to complete, but there can be downstream problems.
Gaps and slivers can appear in models output to STEP, STL and so forth.