LM8UU housing

thingiverse

In an effort to trim mass from the ANET's Y and X carriages, here is a standard LM8UU holder or casing. It fits precisely with the LM8UU linear bearing or any plastic one. Designed parametrically, you can tailor it (open in customizer button at the bottom right of the image) to suit your bearing and printer quality perfectly. All told, more than 20 grams per housing are saved. That means 84 grams recovered only for the housings of the Y carriage. If you replace the LM8UU with printed ones (highly recommended! see here: https://www.thingiverse.com/thing:2537701) another 50 grams are shaved. Total savings come out to 134 grams... quite impressive! To secure the bearing in its housing, small pins are required (small holes are printed to insert the pin exactly in place, see the blue arrows in the picture of the X carriage). The goal was to create these housings so that when bushing wear occurs, they can be replaced on the ANET A8 without removing the bed and possibly even leveling it! Simply push the Y rod across the frame, remove the pin, push the old bushing from behind, and pull it out. With spiral vase bushings, which are springy, they will easily exit the housing... One final note: the original M4 screws are too short for this housing; you'll need to procure 10 mm long ones.