Ok i have had a little woodworking project in mind for a while now, however, due to lack of tools, time, and money, have been putting it aside for awhile now...
To simplify that project, and possibly also make a pretty useful tool for the future, I am thinking about building myself a robotized Dremel drilling/routing table... The idea is to have a Dremel mounted on a crossbar (itself mounted on two sidebars with ball bearings) and have robotized control on all three axis, X, Y, and Z (Dremel plunge). The base materials this will be intended for will vary, from FR4 board to 2 inches thick curly maple.
Now this project will obviously require some sort of motor or actuator to move the router around on its crossbar, and also to move the crossbar around on the two sidebars. Rack and pinion along with a motor is probably the easiest thing I can think of for X and Y axis. I am thinking of using a small hydraulic for the Z axis (plunging action), along with a spring for automatic lifting.
I can handle the mechanical drawings and parts machining, but i would like to hear your opinions about the motor drives, and hydraulic pump setup.. Is this anything like any project you guys have done before? Any pitfalls or common errors I should be aware of?
The setup will resemble a big plasma cutting table I saw once, but much smaller. I would make the table maybe 48"x48", which should accomodate pretty much anything I intend to route or drill. Follow the link for a picture... ;)