I looked into the CNCMasters idea you suggested. It looks like a router solution. Also I've continued researching "high speed spindles". They can be deadly. At speeds even as low as 2,000 rpm a broken bit or loosening collet can cause a lot of damage. Of course safety glasses are mandatory. I prefer a face shield. But what about the rest of the body. At high spindle speeds the flying bit becomes a projectile and can kill. By the way I'm not coming down on your idea. It's just the reading I've done has alerted me to the safety issue of high speed spindles. I've always wondered why engraving machines are enclosed in a "bullet proof" box. Well now I know. I'll be encasing my "engraving" mill within a "bullet proof" box. The articles I've read say that conventional engineered tool holding forces are NOT sufficient to hold "bits" at high spindle speeds. Using a technology engineered to cut wood for cutting metal is a very serious risk. Tokyocrow, thanks for your ideas.