Surface Editing Questions

I have been agonizing over this problem for too many hours and I’m sure it can be done in 5 minutes, so I’m begging for help! And I don’t want to go and do house painting (not that that is a bad thing, I just hate doing it). I want to cut parts on my CNC :slight_smile:

I have watched Sky G’s videos many times , but still get stuck with what are simple things to do to a piece of wood with a bandsaw and #49 rasp, and seemingly hard to do as a 3d model.

I am having trouble with the dreaded headstock transition on a simple guitar neck. I am trying to keep the curves degree 5 or so, and trying to avoid Crv2View, since it generates soo many points, and rebuild didn’t seen to help. So I drew a curve in the right view plane, then nudge points on the curve in FRONT, RIGHT, and TOP views to approximate a Crv2View, then did EdgeSrf, except the resulting surface bulges beyond the TOP view profile, and that cannot happen.

Any help would be appreciated - thanks!

PBass Forum.3dm (302.1 KB)

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Take it from me - try doing these necks in subd!

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Hi Carl - I think if you are going to use surfaces, the way out is keeping it simple and then manipulate control points directly - these points, the second row in, are the ones that causing that bulge - MoveUVN them in so they do not stick out.

I’d also noodle interior points so that the point grid ovwerall is a little cleaner and more regular - but of course I have no idea what is surrounding the surface.

PBass Forum_Maybe.3dm (295.1 KB)

@Carl_Mesrobian , I monkeyed with it a bit more - took some liberties with the edge curves that did not seem clenaly tangent to the neck.

PBass ForumREV1_PG.3dm (1.1 MB)

-Pascal

Sorry - here’s more curve geometry.

PBass ForumREV1.3dm (308.5 KB)

I’ll try some noodling in the meantime.

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Getting there and getting to understand surfaces, rather than seeing it as just a grid of points!

I use the ceiling lights in the shop to test surfaces when polishing and when in Rhino the environment map with black gloss and fluorescent does the trick :slight_smile:

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