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MendelMax 2 MM2 JD Z Screw Thrust Bearing Holder
This is a thrust bearing holder I made to improve the quality of my MendelMax 2 parts. I think the lack of a bearing to hold the Z screws in place at the bottom. It seemed like hanging the Z screws by the helical couplers wasn't helping, so I put them in a very slight compression with the help of this part.
This part requires two 688 bearings.
An isolator is required for this part to work well. I recommend this one: https://www.youmagine.com/designs/jd-mm2-mendelmax-2-z-isolators
This seems to improve part quality a lot.