From where did you get that implication? In FreeCAD there is usually more than one way to create a model, so I don't care much if you chose to use Sketches and Part WB instead of Sketches and Part Design. I do care that I can't figure out why the Cut doesn't seem to work.billfromnet wrote: ↑Thu Jun 21, 2018 11:00 am I am frankly offended at the implication that I am averse to learning and exploring simply because I am not enthralled by a particular user's preferences.
Probably, but first let's see what a developer says...billfromnet wrote: ↑Thu Jun 21, 2018 11:00 am Meanwhile, it seems advisable to file a report on Mantis. Does everyone concur?
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Hi Abdullah, do you have any idea why subtracting the Cylinder appears to fail, although Check Geometry (BOPCheck = True) reports the resulting Cut as valid? I was guessing that somehow the Bezier curves in the Sketch used to create the Extrude (the minuend) were causing some kind of problem. Here is the test file:abdullah wrote: Ping.
We have a similar problem trying to subtract a Cylinder from a Loft made from similar Sketches, but the above file is s simpler test case.
Ulrich was able to make a successful Cut in two steps, using two partial Cylinders instead of trying to subtract a single Cylinder in one go. See the bottom of this post (or scroll up a few posts):
https://forum.freecadweb.org/viewtopic. ... 30#p240465
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I don't know of one all-in-one reference, but here are a few:billfromnet wrote: ↑Thu Jun 21, 2018 3:11 pm I don't suppose there is some reference source where I might find a compendium of similar "well-known" potential pitfalls (?). I ask in order that I don't waste anyone's time (including my own) with these forum questions.
- Sometimes seams can cause problems in Part WB > Booleans (and in the Part Design WB, where the Booleans are built into the tools), especially when different seams cross or align.
- Fillets and the Thickness tool can be troublesome.