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Sweep "intersects itself"?
daniel_crookston
Member Posts: 14 ✭
I'm making pipe fittings for assembling PVC into structures. One of these is an elbow, shown below where it's working:
The first section is mirrored using this plane. Then a bridging curve is made using mate connectors from one part to the other, and then I sweep the face of the first section to the second for the elbow part. The idea is to use the angle of the mirror plane to change the angle of the elbow, and it works... to a certain extent. If I try to make a 45 degree elbow (by setting the mirror plane to a 22.5 degree angle) the sweep doesn't work:
The problem I'm getting is that the sweep intersects itself, although I can't see any obvious signs of this. Here's a link to the document if you want to see it:
https://cad.onshape.com/documents/550190f0a42d4906ed90d5e6/w/5fff92f445b94f089f253bcf/e/bf80ff3578163e96aa7c9910?renderMode=0&uiState=6672defd7c5d1705b627bc24
Incidentally, please use this for your own projects and give feedback. You can use variables to change the size of the PVC pipe, the wall thickness, and how far out the joining bits stick via "extrusion factor."
The first section is mirrored using this plane. Then a bridging curve is made using mate connectors from one part to the other, and then I sweep the face of the first section to the second for the elbow part. The idea is to use the angle of the mirror plane to change the angle of the elbow, and it works... to a certain extent. If I try to make a 45 degree elbow (by setting the mirror plane to a 22.5 degree angle) the sweep doesn't work:
The problem I'm getting is that the sweep intersects itself, although I can't see any obvious signs of this. Here's a link to the document if you want to see it:
https://cad.onshape.com/documents/550190f0a42d4906ed90d5e6/w/5fff92f445b94f089f253bcf/e/bf80ff3578163e96aa7c9910?renderMode=0&uiState=6672defd7c5d1705b627bc24
Incidentally, please use this for your own projects and give feedback. You can use variables to change the size of the PVC pipe, the wall thickness, and how far out the joining bits stick via "extrusion factor."
0
Comments
You also have some weird "slivers" of gap in your model (that could be part of the problem):
Something like this seems a lot simpler...
https://cad.onshape.com/documents/f4cdbe33ea0521954d494ae0/w/b82a70f826a74240b3f5ad9b/e/8839f187583a3789fbe76a3d?renderMode=0&tangentEdgeStyle=1&rightPanel=variableTablePanel&uiState=667317252dc6de4578d53cbf
https://cad.onshape.com/documents/550190f0a42d4906ed90d5e6/w/5fff92f445b94f089f253bcf/e/55347d08a6273bf718dba8cc?renderMode=0&uiState=66733c98a5d80415e13cd15e