All good stuff but it is speed I am looking at. A Dremel tops out at 33,000 rpm, no load, and I consider that a little pedestrian.
Ok so gear things up but using something like belt drives at high rpm involves tensioners and even then at high speeds perceived internet wisdom seems to think that belts stretch, slip, burn out, skip out of grooves, become unbalanced, 'become complicated'. Gears seem to suffer a similar perceived status of 'complicated'. At the moment my thinking is that direct drive is the way to go but I am still very much open to persuasion and/or reasoned argument
Quote Originally Posted by Gary View Post
What about these for PCB drilling / routing?

http://www.slidesandballscrews.com/b...tors-c-75.html

Some have integrated electronics, and some are high speed and are continuously rated.
We also have torque curves.