True, but (at least for me) that presents a rather large construction challenge. Plus, much of the work should be precision so that you end up with repeatable accurate results. This basicaly ends up scaring me away from trying to construct such a beast. Josh -- A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools. -Douglas Adams "Alan B. Pearce" wrote: > The trick would be to start with the mechanics of a small mill that > companies like Proxxon (and possibly Dremel) make to go with their hand tool > range. Then all you would need to do is provide motors to drive each axis. -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu