Just read the whole thing again probable the 4 or 5th time and it "might" be sinking in.
The "limit" switches are virtual not actual limit switches.
It actually makes sense. They are set for distance travel limits not to prevent overtravel of the leadscrew.
Ok moving on!
Ralph
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Clausing 8520, Craftsman 12x36 Lathe, 4x12 mini lathe, 14" Delta drill press, 40 watt laser, Consew brushless DC motors and a non working 3D printer