Ultimaker Axis (Bearing) Cap
thingiverse
This is a replacement inner axis cap for the Ultimaker. It is very similar to PabloBell's nutless axis nut that was derived from MoonCactus' design. The key difference in this design is that I added hexagonal extension that contains a standard hex nut (press-fit). Instructions I printed PLA, 0.2 mm slice, 0.8mm wall, 30% fill. I used a screw to press the nut into the hexagonal protrusion. A pliers might work just as well. Basically, you want to install the nuts before installing the axis cap.
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