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Ultimaker 2 Spool Holder w/ Skateboard Bearings
this is my first published design. I'm acutally upgrading my ultimaker 2 a bit and there might come a few other improvements.
I hope you enjoy the design and sorry for the color :-D
For me it works just fine, but it surely depends on the shrinkage of your printer if the bearings fit well or the printed nut screws perfectliy onto the axis...
I added some original files that you can manipulate your bearing seat and btw. you should print at least the axis quite massive ;-)