Reducing Quill Backlash and Setting Z Axis Gain on a RF-30 Mill/Drill

[rgsparber]

This article deals with a simple modification to a RF-30 mill/drill that reduces quill backlash. I then address the task of setting the correct Steps per [DRO inch] in the CNC program, Mach3.

Over the range of 0 to 0.4000 inches, I measured an error of less than +/- 0.002 inches. However, I also saw a large random error at 0.2000 inches that has yet to be figured out. So consider this article a work in progress.

If you are interested, please see

http://rick.sparber.org/ZABG.pdf


Your comments are welcome. All of us are smarter than any one of us.


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Thanks,

Rick