First post in this section. A buddy of mine was talking about building a router for milling 1/2" aluminum and acrylics. We got to talking about drive systems. The idea of a belt driven system came up. I couldn't find any major companies making a belt driven system on a 4'x4' platform.

Any thoughts on how that might hold up compared to a typical rack and pinion system? Obviously it would have to be some heavy duty belts. 1" wide or so