Minimill CNC conversion WMD16LV Z-axis adapter for NEMA23 and M3 teethed belt

New version V3 after the second fit:

The mount on the Z-column needed to get UP so the NEMA23 teethed wheel gets at the same level as the wheel that is mounted on the leadscrew.

Required hardware:

3d printed Z-axis adapter
Nema23 stepper 76 mm length with enough torque, 8mm axle diameter
48teeth M3 teethed wheel of 11mm width, 10mm hole with collar for the leadscrew
24 teeth M3 teethed wheel 11mm width , 8mm hole with collar for the Nema23 stepper motor
new M6 40mm length bolts flathead for the top connection to the Z column
4 bolts and nuts M5 to mount the Nema 23 stepper
teethed belt 300mm M3 (100 teeth) 9 or 10mm

OR, use the 72 teethed wheel on the leadscrew and get a larger length belt of (I estimate) 330-350 mm

OR.. another way to mount the Nema23stepper is at the rear of the Z column, BUT I don’t want it to stick out at the rear, that’s why I decided to mount the stepper at the left of the Z-column…

This is the 72 teeth 11 mm width teethed wheel that I will probably use for the final mount at the Z-axes. But not with this bracket at the rear. Unfortunately this bracket does not easily fit at the left or right side of the Z-column. I might make a fitting piece to mount it at the left, though. We’ll see how good the 3d printed parts will perform and if needed the Z-axis will be the easiest to use a standard bracket for mounting the stepper motor as shown above.

GOTO the X axis adapter

GOTO the Y axis adapter

DOWNLOAD THE CNC ADAPTER DESIGNS as STL

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