I finally have the time and most of the parts to contemplate building the my CNC router. I stacked up most of the parts last night to get an idea of the thing. The motors are the cheap Clifton servos as per the "my cheap servos" thread. The z axis are THK NSR20TBC that I got for a song on ebay. They are 640mm (25"). The y-axis is a thomson superslide with a 5mm lead ballscrew. The screws for the x-axis are IKO rolled units, two start 10mm lead, both will be coupled with belts, I have bearing blocks for these also. The z axis is a Aerotech with 5" of travel, has a ground ballscrew with 2mm lead. That will probably be stepper driven, not too sure.
For noise I am adding a 900W Kress router, they are really nice and not too loud.
I'll add pictures as I do stuff however progress may be slow as I have run out of cash at just the same time having some time to do the work.
Graham |