I would like to know which is the bearing method and transmission of the movement (lead screw, Belt and pulley, etc.) of the large cutters as those of: Croma (www.croma-foamcutter.com), Original Foam (www.originalfoam.com) etc.

If somebody has ideas, schemes or photos in detail, would be very good because I am interested in constructing a machine of 2 by 1.80 meters.

Thanks

Clax

I would also like to know

In some of the literature I got from Hotwire direct, the bigger CNC foam cutter mentioned they used timing belts.

onthemarc

I just got back from looking at the Megaplotter machines, sold by Demand Foam, and Original foam. They are using a timing belt system,,, the belt looks similar to "zip" ties. They are using steel guide rods embedded in the aluminum frame, and shielded bearings in a "V" configuration.

Thanks to all, any ideas how to make a automatic wire tension for diferent left and right cuts?

I've been wondering if a weight attched to one end of the wire would work. The weight would have to be inside some sort of tube to keep it from swinging around.