I am looking for a high-speed router for 3d work. Ez-router (www.ez-router.com) claims 500ipm on 3d parts and 800ipm on rapids. It basically looks like a rack and pinion drive with steppers. I currently have a practical cnc (www.practicalcnc.com) router, but even when commanded to cut the 3d parts at 100ipm, it actually achieves around 25ipm. I guess I am timing linear inches, but I can't imagine going up and down a total of .1" in small slopes creates that much more distance. Thanks.

Rob