Hiya people,
Im jay, from Selston in Nottinghamshire, ive been a cnc miller for 13 years now,I finally got the courage 2 months back to start my own precision engineering company which is slowly coming together now.
Ive just joined up with the hope of getting a little help with a project of mine, and make some new friends and contacts along the way
My project is for a tyre shaving machine, I designed and built a prototype last year, since then I have revised it and have orders to make them. Its basically a frame made of 40mm box section, a hub thats driven by a motor that turns the wheel. The cutting side is a rotating carbide disc mounted at 45deg to the tyre tread face, run by another motor.
There are 2 axis that run the cutter along the face of the tyre, and another to wind into the tyre. It basically turns the tyre diameter down to a specific size.
My new revision includes the following, ( which is what id like some advice on )
linear bearings for both axis
stepper motors to run axis (as well as a manual handle )
plc to run a small program / or a cheap cnc alternative

the move ment needs to be - set zero against the tyre, then move away from the datum to the side, move in .5mm , then across the tyre face, back , in .5mm , across , back , in .5mm and so on.
will be taking around 4mm average off. Does anybody have any info on plc's etc or alternatives? Also the best place for my linear bearings etc.
Thanks, and hello again.