MPCNC Middle Joiner M3 Captive Nut Remix

thingiverse

Tightening screws holding the Z-nut-lock's nut can be an enormous hassle. Frequently, I find it easier to quickly disassemble than squeeze a wrench into tight spaces. Don't worry – print the test print (fast & low infill) first to ensure your printer is calibrated closely to mine. Try inserting an M3 screw and nut; make sure they work together seamlessly. Next, print two of these models with around 60% infill and approximately 2.8 layer height. After that, replace the two screws holding your nut lock with M3 screws and some M3 nuts. From then on, tightening them should be much simpler. Be cautious, though – a captive nut setup can easily become stripped, so monitor the torque carefully.