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Measure twice-cut once

I had a long think and suspected that my gear cutting wasn't as accurate as it should have been. I cut two more 12-tooth gears, but still it kept jamming. Eventually gave in and purchased two 12-tooth and one 18-tooth gears from HPC. Comparing the gears, it immediately became obvious why the gears were jamming - I'd turned the OD of the feedscrew gear too small as you can see in the photograph. I'll turn off the gear on the feedscrew and Loctite (638) a slice of HPC gear.

Uploaded by John Hinkley on 24/08/2016 12:20:47

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