Mini Mill X2 Z Axis Ball Screw
thingiverse
Update: 2/7/18 - I made significant changes to the design to make adjustments easier. This is a ball screw type Z axis for the X2 type mini mills. BOM: SFU1605 Ballscrew with nut - 350mm https://www.ebay.com/itm/Ball-Screw-SFU1605-RM1605-1605-Ballscrew-End-Machined-with-Single-Ballnut-CNC/182984365566?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 8mm or whatever size your stepper motor shaft diameter is x 10mm https://www.amazon.com/gp/product/B06X9QLQGR/ref=ppx_yo_dt_b_asin_title_o07__o00_s00?ie=UTF8&psc=1 12mm x 28mm x 11mm Thrust bearing https://www.amazon.com/gp/product/B07G86DC6L/ref=ppx_yo_dt_b_asin_title_o00__o00_s00?ie=UTF8&psc=1 12x32x10 ball bearing though an angular bearing will probably work better https://www.amazon.com/gp/product/B07CHWDQLY/ref=ppx_yo_dt_b_asin_title_o08__o00_s00?ie=UTF8&psc=1 (2) 12mm x 1.0 jamb nuts (4) M5 x 50 and nuts (4) M8 x 35 and nuts (2) M5 x 35 and nuts (4) M4 x 45 and nuts
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