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The lead screw arrived today, I installed it and since it is concentric, I was able to reduce the backlash down to 0.01 mm, with knob still moving smoothly.
Now the machine is ready for hyper-tuning :-)
EDIT: backlash is not 0.01, it is ~0.04 mm, this is probably the limit (screw/nut play)
Last edited by bojan; 09-07-2020 at 09:52 AM.
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