Greetings,

I’m trying to model a roller chain sprocket from a tutorial at http://www.robo-works.net/Mechanics/week%203/day%201/draw_sprocket.pdf. So far, every equation that I’ve tried to enter into the SolidWorks Equation Editor either returns the message, “The syntax of this equation is incorrect” or a “!” Can anyone please help me with how to determine the syntax for such equations, that SolidWorks will recognize? I’m using SolidWorks Premium 2009 SP0.0, and I don’t have a subscription.

Thank you very much.

Sincerely,
Gary Skinner