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Here are pictures of a full circle milled with a manual mill, using my laptop program that tells me how to move dials and when to adjust for backlash when reversing feed direction. I call it "Egyptian Pyramid CNC".
The name is a tribute to ancient Egyptians, who built enormous, sophisticated and lasting structures using only primitive tools and manual labor. Here, I made a circle using only dials and manual operation only, taking directions from my laptop.
The laptop is Linux only, no viruses here.
Here's my CNC Perl Script.
