Newbe

[Web Goblin]

I remember working on twin x axis belt driven plasma machine a few years ago. I cant remember the manufacturer name but it wasnt a very stable machine. it used wire reinforced 50mm wide timing type belts and it had some serious skew problems. These were supposed to be fixable by tensioning the seperate belts until the machine was square again but in reality this was very difficult to achieve. The more tension you applied to the belt the more they tended to stretch. Rack and pinion would be much better than a belt drive. you could use angled teeth rack and pinions to increase accuracy and decrease backlash.

Regards

Ian