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Surface Sweep Discontinuity Issue

Question asked by Joseph Pia on Apr 26, 2019
Latest reply on Apr 26, 2019 by Joseph Pia

Hello,

 

I'm trying to model some threads using surfaces. I know there are many other ways, but this is the way that I would like to do it. I model the sides of each thread and then knit it all together.

 

The issue I am running into is that the leading thread surface sweeps fine from front to back, but the trailing thread surface gets hung up on a split in the 3D curve that I'm using. I can't use a helix for the 3D curve do to some constraints. You can see in the picture that both have splits in the curve, but only one develops a discontinuity. The "split" is in the 3D curve because the screw diameter goes from a taper to a constant diameter at this point. The order that I model them in relation to the root, flat, surface does not matter.

 

My question is if there is anything I can do to make the sweep model a smooth surface across the "split" in the 3D curve.

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