Quote Originally Posted by Jonathan View Post
I meant not a problem with belts for a plotter, but if you've done a plotter and it's wasn't then fair enough. There was a plotter at school we dismantled that was belt driven without further reduction...and the rapid prototyper, laser cutter.
Yes on small printer type plotter this would probably be fine because of the small Diameter pulleys but on a machine this size the diameters get large so obviously the circumference does giving a very large pitch.!
Take for instance a 20T pulley which really for 8ft machine is about as small has you'd want to go then direct drive pitch is 97mm. . . . . It's bit like putting F1 engine in a dumper truck, it will carry what ever you want and go like fuck but the bastard won't stop or go round corners. :dance: