>> And by the way, 1000 RPM at 1 foot is 3343g > > Divide by 9.81 . And it's still a lot by any standards. Oops, you're right. 3343 is the force in Newtons, which would be about 340g. ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist