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tangent extruded hole fails
This is a followup to a question I posted yesterday about circular patterns of a feature: https://forum.onshape.com/discussion/6002/circular-pattern-of-a-feature-creates-extra-parts-if-instance-count-exceeds-29 In that question, I had improperly defined my feature (which was supposed to be a small slot on the periphery of… -
Re: tangent extruded hole fails
Thanks for the answer. It makes sense, and it's good to know that this is intended behavior rather than a bug. But there are still two things which trouble me. I think I'm getting into "flogging a dead horse" territory here, so most folks will just want to skip this. I should also emphasize that I *really* like Onshape,… -
Re: tangent extruded hole fails
Thanks for the tip - I wouldn't have thought of using the face. As to the design intent, here's a composite photograph of the object I'm modeling. It's a handwheel dial from a 1970s vintage Colchester lathe (in this case the dial on the compound slide). I'm looking to build a model for the purposes of illustrating it (vs.… -
Re: tangent extruded hole fails
I played with your model, I changed the sketch constraints a bit. I made the top line tangent to the outer diameter. And I've gotten 200+ graduations without a bug. https://cad.onshape.com/documents/58c5da1bf3b7fe0f7f18d852/w/156fea49672cf1619110145a/e/8fbd7753999c6d6550b51855 Perhaps it has something to do with floating… -
Re: tangent extruded hole fails
About number 3: If you drill or punch a hole with the bit exactly touching the edge of material, you will end up tearing the infinitely fine edge you are trying to leave behind. In Onshape, and other systems using the same internal representation, 3D parts are supposed to have finite thickness everywhere. (Useful google…
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