07-18-2015, 06:06 PM
Some use the threads on the screw to move it, some use the keyway to drive a gear to move it. Older Logans used the threads, the newer ones used the keyway. I don't recall what the one Kenny posted a link to had on it.
Logan 200, Index 40H Mill, Boyer-Shultz 612 Surface Grinder, HF 4x6 Bandsaw, a shear with no name, ...
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