Help with Solidworks modeling drill flutes

[Clivefan]

I am a new user to Solidworks (2005) and am trying to design a drill for medical application. I am having trouble cutting the flutes. I think it need to use the Revolve/Cut feature to follow a helix I have installed but cannot get the feature to work. The model already has a drill body and point angle and I am trying to sketch the drill flute form on a plane perpendicular to the drill body axis. I think I have to pierce a feature with the helix and then do the Revolve/Cut but I cannot get it to work. Any detailed instructions would be helpful.

 

[mcgyvr]

http://www.eng-tips.com/viewthread.cfm?qid=219689&page=8