Twist

[BRAIN-HURTS]

Hi Guys. I am trying to extrude a screw twist. Can someone give me any pointers please.

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[BurrMan]

In BobCad, you'll have to generate the upper and lower "spirals" and also the root spiral, then use a skin command...

Manually building it. there wont be a "sweep profile" command to spit that out in 1 go...

[BurrMan]

Sorry, my bad. That was for "Bolt threads".

For a "Screw", much simpler.

Make a helix of ypour screw. Put a single straight line down the middle of the helix center. "Cross section" the helix and the pole.