Misumi 2020 (Mendelmax) quarter-turn extrusion clip
by bluecoast, published
This is a quarter-turn clip for holding wires etc. into Misumi 2020 extrusion. Handy, works, and doesn't look too horrible. I made about four different versions (in Sketchup), some of which were unnecessarily large or didn't slice or print well. The final winner is uppermost in the photo and 12mm in diameter.
I used Slic3r 0.9.7 and an 0.35mm nozzle. The overhang in the quarter-turn part prints unsupported -- I only had about one gross layer that cleaned up well with razor blade and riffle file. I tried a number of times with 0.7.2b (because 0.9.7 couldn't slice the socket-head one at all) and it made a mess of those overhangs, so I eventually scrapped the socket-head one. I had (good) cooling on and printed bridging at 60mm/s with a flow ratio of 0.9. You will have to file, but if you get the settings right it won't be much.
The 2020 slot width is spec'd to be 6.0mm. All the ones I measured on hand were 6.2mm. The model uses 6.1mm.