Carefully flex the KB2040 mount to secure the KB2040. Attach the MPM3610 to the outer mounting hole with an M2.5 screw. Attach the STSPIN220 to the mount with M2.5 screws.

Connect GND from the MPM3610 to the - terminal block on the STSPIN220 (black wire). Connect Vin from the MPM3610 to the + terminal block on the STSPIN220 (red wire).

Connect the stepper motor wires to the terminal block on the STSPIN220:

• Stepper coil 1 positive to STSPIN220 1A (green wire)
• Stepper coil 1 negative to STSPIN220 2A (grey wire)
• Stepper coil 2 positive to STSPIN220 1B (yellow wire)
• Stepper coil 2 negative to STSPIN220 2B (red wire)

Place the stepper motor mount over the stepper motor, lining up the top mounting holes. Place the electronics mount on top of the stepper mount. The electronics should be facing downwards.

Secure the cover disk over the mounts with four M3 screws so that all of the pieces are attached to the stepper motor.

Now is a good time to install CircuitPython on the KB2040 and upload the Project Bundle to the board, if you have not previously done so.

Insert the DC jack in the mounting hole in the main enclosure.

Insert the enclosure into the bottom lid. 

Plug the DC jack JST-PH connector into the MPM3610 JST-PH connector. This connects the power supply to Vin and GND.

Take the stepper motor assembly and put it inside the enclosure. Secure the motor mount to the bottom lid with four M3 screws.

Attach the gear carrier onto the stepper motor shaft.

Place the three planet gears on the outer pegs on the carrier. 

Place the center sun gear on the center peg on the carrier.

Place the dreidels onto the mounts on each of the three planet gears. That completes the assembly!