It should be pretty easy to do. The bed will need to be either very slippery, or made up of rollers. If you use rollers, you made need to mount thin stock to a thicker backer board.
Then make the feed roller a spring mounted assembly containing both the roller and stepper that drives it.
One problem with this is that it's limited to flat stock (or very close to it). Also, you might have trouble near the ends of the machine.
And how do you keep long narrow pieces from moving when making a lot of back and forth movements? Seems like some error could creep in here pretty easily.
__________________
Gerry
Mach3 2010 Screenset
http://home.comcast.net/~cncwoodworker/2010.html
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management) |