I have had this question before...
http://www.cnczone.com/forums/bobcad...ar-spline.html

Attached is a drawing I am trying to draw in bobcad v26. With Burrmans video I go as far as drawing the star and then when i check my angle dimensions (45 degree between teeth) I dont get the right number. Am I doing something wrong? I tried uploading my bobcad file but it wouldnt let me. I have 10k worth of parts to make so I need some serious help.

The inner and outer teeth are arcs fyi.