Z Carriage for a 52mm spindle motor

thingiverse

### Z Carriage for 52mm Spindles Mount for a 500W spindle motor (52mm diameter) to make it a motorized column drill or a small but powerful CNC mill (with the addition of a moving table). The spindle it self came with a metal clamp with M6 screws spaced 70mm x 20mm, the distances between the linear bearings and the trapezoidal screw are arranged so that the KP08 bearing mounts can be screwed on top of SK12 (SH12A) shaft mounts. Longer M6 fixing screws can be used to distance the spindle from the rails, but that also warrants an appropriate spacer to keep the spindle stable (will probably design one). ### Bill of materials: - 2x 8mm shafts (pick a length > 10cm, I used 40cm) - T8 trapezoidal screw (same length) - 4x LM8UU 34mm linear bearings - 4x SK12 shaft mounts - 2x KP08 bearing mounts - brass trapezoid nut (with or without spring) - NEMA17 stepper motor - 5mm to 8mm connector (for the T8 to NEMA link) - 4x M3 14mm screws with nuts (button head if you use a brass nut with spring) - 4x M6 65mm screws with nuts - 8x zip ties 2.5mm x 80mm (minimum) Most of these things actually came from a single [Machifit kit from Banggood](https://www.banggood.com/15pcs-400mm-CNC-Parts-Optical-Axis-Guide-Bearing-Housings-Aluminum-Rail-Shaft-Support-Screws-Set-p-1136854.html). The spindle I had can also be found on [Banggood](https://www.banggood.com/500W-Spindle-Motor-with-Speed-Governor-and-52mm-Clamp-for-CNC-Machine-p-1202031.html). ### Revisions: 2019-09-17: - Added a blend file for [Blender](https://www.blender.org/) for making any modifications you may want easier. ;) - fixed mount M6 hole spacing by 2mm (wasn't actually a problem with tolerances assumed)