Parametric pulley generator for Aqara roller shade driver e1

Would you like the shades to move up and down at a faster rate? I've created a parametric pulley specifically for the Aqara roller shade driver E1, and I've included STL files for pulleys with 6 to 18 teeth. The speed of the shades is directly proportional to the number of teeth on the pulley. To pull up the roller shade, I used a 14T pulley, which doubled the speed compared to the default 7T pulley, and the motor seems to handle it well.

The STL files are designed for beaded cords with a 6 mm distance between each bead. The gap between the teeth is designed to grip two beads at a time.

If your pulley exceeds a diameter of 50mm, you will need to add a spacer, as it won't fit the E1 without one. To assemble it, print the two halves of the pulley and screw them together using 4 m3 screws (Align the flat spot on the shaft hole). The pulley should be a press fit onto the E1 shaft.

If you require more than 18 teeth or have any other specific requirements, you can adjust the parameters in Fusion 360:

• DistanceBetweenTeeth: The gap between the teeth.
• AmountOfTeeth: The number of teeth.
• HoleDiameter: The diameter of the E1 shaft hole.
• HoleDistanceToFlatSpot: The width of the E1 shaft with the flat spot.
• ScrewHoleSmall: The screw hole for attaching the pulley (should provide grip).
• ScrewHoleBig: The hole that the screw needs to pass through (no grip required).
• BigHoleDistance: If the pulley's diameter exceeds 50mm, a spacer is needed. In that case, both parts of the pulley should have the big screw hole, which is automatically calculated.