Retrofitted motor mount for blinds automation

Last crawled date: 4 years, 7 months ago

This is designed to hold a 28BYJ stepper motor in place to rotate the worm gear driver found in most household blinds.
There are other projects which mount a motor in a 2" track and drive the rod directly. My blinds are a 1" track and there's no way to cram a motor in it.
The mount fits into a 1" track and is adjustable along every axis that matters. It's assembled with some M3 bolts, nuts, and washers.
I've included a couple of motor adapters, but there are probably tons of varieties of these. The fusion360 design can be found on grabcad in case someone needs a different adapter.
I drive mine with an A4988 (motors converted to unipolar), and an ESP8266 running esphome.
Writeup available here.
Printing instructions:
PETG works best. PLA is too brittle. I used white eSun PETG.
The motor plate and the arm it attaches to should be printed with supports for the rings. The slider tracks print fine w/ bridging.