Same lines I'm thinking along. Means dedicating an extra axis, though, and I'd like to have the option of retro-fitting a rotary axis (sometime) later - so a 5-axis system, then? It'll need a 5-axis break-out board, to start with. (How do you add more axes? Does it need another com/lpt/usb port; EMC supports up to 9 axes, apparently... ) and a separate driver for each motor. And that's it??

'xcuse me chipping in, hope it's okay...

...cheers, Eric.