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Loft to get a cylinder with hole (a hose)
gauthier_östervall
Member Posts: 99 ✭✭
Why can't I seem to loft between these faces?
The project: https://cad.onshape.com/documents/c6282b37bc2c57450d81c93f/w/d55aba687ead91b93b3f1925/e/85c614acc7d029ff4a4ea69b
The project: https://cad.onshape.com/documents/c6282b37bc2c57450d81c93f/w/d55aba687ead91b93b3f1925/e/85c614acc7d029ff4a4ea69b
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Best Answer
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bruce_williams
Member, Developers Posts: 842 EDU
@gauthier_östervall
Loft help says "Nested loops in profiles are currently not supported".
However, you can do this with two loft commands. See the gif attached.
www.accuratepattern.com1
Answers
Alternatively you could use the sweep command....see attached
https://cad.onshape.com/documents/2508b8cedc0f48d7923b9a64/w/dd7e7bad017c6762a65c2faa/e/1ec4cd6a5dfd68df68d7b739
That's how I'm solving it right now, extruding the whole cylinder (no hole) with draft, then extrude remove the hole without draft.
But I'm mostly looking to learn, so although I'm not blocked by this issue, I'd like to know what's going on: am I doing it wrong and Onshape failing to do this is legitimate (why?), or is it an Onshape limitation?
Loft help says "Nested loops in profiles are currently not supported".
However, you can do this with two loft commands. See the gif attached.
I am trying to follow along with the gif but the inside hole gets lost after I Loft.
Here's a sample of sweep and extrude/draft. and revolve to accomplish what you're looking for.
Loft is the least effective option for this part.
https://cad.onshape.com/documents/4f8389d42070eec6681971ce/w/0edbbd611d0753c608506df9/e/d38d6ae6914e398375f04078
Siometimes, it helps to just eliminate the loops. e.g. by using half-circles, if the design is symmetrical to at least one plane:
https://cad.onshape.com/documents/26adf205741a5240d4e902f9/w/3e7982592d2de33e234ac9b1/e/1cc77cf8dd83e3915b85f08b?renderMode=0&uiState=685519b3f1431611855fa245