Makibox Z axis with Brass threads and LM4UU bearings
thingiverse
This is a custom Z axis knuckle engineered to pair perfectly with LM4UU bearings and an acme threaded brass nut - both readily available at affordable prices on EBAY. By redesigning the mount, I successfully addressed the wobble problem AND eliminated the sag in the stock setup. The new assembly is noticeably stiffer. Honestly, I built this replacement because my original mount was compromised during shipping. By the way, the first attachment is a visual representation of the completed assembly - it's unlikely to function correctly if you attempt to build it from scratch.
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