![]() This means it will properly handle undercuts in pinions of low tooth count. It uses an iterative computational method based on Zalewski’s approach. It outputs the drawing to dxf, which you can have open directly in Rhino from the browser. Rainer Hessmer has just developed an online "Involute Spur Gear Builder" ![]() But extra to this, he also has a graphical technique for deriving the tooth form based on the rolling motion of the teeth when they mesh - a different approach from the usual computation of an involute curve. ![]() Zalewski gives good ideas on drawing some complex gear forms in Rhino, that I found useful. This is the “Guerrilla guide to CNC machining, mold making, and resin casting” © 2013 by Michal Zalewski, In my search, I came across a site with beautiful graphics that gives techniques using Rhino for creating simple spur wheels, bevel wheels, worm pinions, and helical gears. ![]() I tried it out, and thought that the following info might be helpful to others. While looking for stuff on drawing bevel, helical and worm gears, I came across a new gear generator, posted by Rainer Hessmer three days ago. ![]()
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