Hey, I’m actually doing the same now. how did you handle the m3 nut inserts? did you buy new ones or did you somehow remove it from the old carriage?
Buy these, never have this problem again:
Maybe these too if you’re gonna rebuild the parts requring short/long M5 threads:
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for reference, this is what I used for the nut inserts and they worked perfectly.
so, trying to work this now. for it to work with Marcio’s firmware, do you have to pin it to Z-min or to GPIO pin 5?