Prusa MK3 Bear +4.5mm Z-Top for Bondtech Extruder
thingiverse
After assembling the Bear Prusa i3 MK3S + Bondtech Extruder, which turned out to be an excellent kit by the way, I encountered some trouble during my XYZ calibration process. The Pinda probe kept bumping into the bed, and no matter how hard I tried, I couldn't adjust it to the specified height listed in Prusa's manual to successfully pass calibration. I discovered that adding a bit more Z-axis travel resolved the issue for me. It involved modifying a part of the Bear original design. In particular, I found a convenient negative space for the trapezoidal nut and its accompanying hardware when the Z-axis was at its full distance.
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