Moes Curtains Motor Adapter

Initially, I bought a cheap motor for curtains that can be mounted onto the rod directly:

https://www.aliexpress.com/item/1005007993651738.html

The advantages of this purchase were the low cost, Zigbee 3.0 support, readiness to be used with Home Assistant, and the pre-installed Li-Po battery instead of AA batteries or AC. However, there were also two problems: the need to use two motors per window and (surprise) that they were not working with my rail rods at all — they slipped if not tightened or stuck if tightened too much. 

So I designed the adapter that allows the installation of a single motor and the opening of two curtain panels together using the 4.5mm ball chain.

Materials required:

• 3mm axis with flat head (https://www.aliexpress.com/item/1005006740865826.html) (for installing rear roller)
• 1mm cylindrical magnets x4 (used by the motor to monitor the position, needs to be installed into the roller)
• 4.5mm x 6mm ball chain (https://www.aliexpress.com/item/1005006679378076.html)

Steps to achieve the goal:

1. Print all the parts
2. Glue some parts together
3. Disassemble the motors and replace the default driving roller with the printed one (do not forget to install the magnets)
4. Screw the front holder and the rear mount to the ceiling with screws
5. Put the motor into the front holder and lock
6. Pull the rope and secure it with the connector
7. Connect the handlers with curtain clips

The motor works fine with zigbee2mqtt from the box, but probably you may need some manual configuration that I have found here: https://github.com/Koenkk/zigbee2mqtt/issues/24605