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Show"N"Tell ( Your Machines) / Re: Home-Brewed Benchtop CNC Vertical Mill
« on: December 20, 2006, 08:10:24 PM »
UPDATE! here's the revived blog: http://www.fignoggle.com/workshop/?c=Home-Brewed-CNC-Vertical-Mill happy holidays!
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Fignoggle,
Thanks for the reply, yes I did make a y-axis bearing block, I went kinda cheap with it though. I just used 2 ball bearings and preloaded them to each other by shimming between the outer race. This didn't leave much room on the stock leadscrew, just enough to get the pulley mounted. Next time I take it apart to adjust or tune things I will take some pictures incase someone wants to do something like it.
Arn
I recently upgraded my mini with imperial lead screws. I'm now thinking of converting to cnc, but one thing has me vexed. The Z axis is rack and pinion. How will the difference between rack, and lead screw, affect the Mach configurations? Also what size motors to use to move the Z axis. All that cast iron is heavy. Any assistance will be greatly appreciated.