BLV-MGN 3 axis Kelvin coupling
thingiverse
I'm adding a third Z-axis and seeking out an auto-leveling platform. Using Railcore's bed. I employed kinematic coupling to release stress on the parts. Need three Magball (https://www.duet3d.com/BallStudEnds) to keep things in place. And six magnets (https://www.kjmagnetics.com/search-pn.asp?pg=1&stext=BX024) to hold the bed firmly. I've printed over 50 hours with the bed at 120 C and it hasn't budged a single inch. With four layers and 90% infill, this setup is working like a charm.
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