The design for the Y-axis mounting plate for the Nema23 stepper is shown below and can be 3dprinted or, as I will do after the printed part proves to fit well, CNC it in aluminium on my CNC Indymill router.
The Y-axis adapter proved to be the most difficult design. It took me 15 trial prints before I got everyting fully optimized. And I also wanted to have a debree screen with a removable lid, which took some energy to test this. Also, the belt has to have a clean route where it sits between the wheel.
The physical data for this setup:
- Nema23 stepper motor
- 3d printed parts: a: Baseplate inclusing risers for motormount and shield; b: lid
- Teethed wheel for the Nema23 8mm axle: 10mm wide, 24 teeth M3 with chest
- Teethed wheel for the leadscrew 10mm axle: 10mm wide: 48 teeth M3 with chest, machined on the teethed inside 9mm depth with a width of 33 mm diameter to fit the chest of the leadscrew bearing holder
- The fitting belt is 9mm wide, 300 mm long and has 100 teeth (M3)
Machined the inner part out on the lathe so it will slide for about 9mm over the Y axis’ leadscrew bearing holder
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