CompuServe Messages

#How to cut threads?

    16-Jun-95 18:26:40
Sb: #How to cut threads?
Fm: John Hosking 76470,3623
To: Yost Group 76702,413
I am trying to loft a helix from a triangle shape, and I want the apex of the triangle to consistently point toward the axis of the helix. When I loft the helix, the triangle rotates about the path. My objective is to create a helix that I can use in a Boolean subtraction from a cylinder to create the effect of machined threads, like on a bolt or screw. Therefore, the apex of the triangle must consistently point toward the center of the cylinder to create the threads. How can I do this? What are the settings I should use in Lofter? Is there an IPAS to create threads?