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Feature Requests / Re: Add -Z limit calibration
« on: October 11, 2011, 12:05:11 PM »Another thing to check is it could be as simple as a slipping coupler on the motor.Tighten it up JUST in case.Thanks for the pointers. I actually have experienced a loose set screw on the Z axis before, (been awhile ago), so that's the first thing I will check. As far as the Z engineering, I originally had a 5 TPI ballscrew drive on there. But it was a used ebay purchase from China. There were balls missing from the ballnut, and it bound up. It was manufactured by Kuroda (a Japanese company), and I found a company locally to look at it and give me a quote on repairing. They said that repair of a ballnut is not possible, and offered to replace the assembly to match my specifications for only $898.00 Since I am unemployed, that just wasn't possible, so I replaced the ballscrew with the $50 lead screw and nut. And I am aware of the extra demands on the Z, since I use MeshCAM Art to create the 3D toolpaths of my carvings. MC Art has a separate feed rate setting for Plunge Feed. Which does an excellent job (most of the time) in creating the toolpaths and gcode. For the 4th axis, I then run the gcode through CNCWrapper (to wrap 3D toolpaths around a column on the 4th axis "Lathe"). Again, thanks for the suggestions!
(;-) TP