Roller blind motor attachment

The "GidTech Window-Blackout-O-Master 2000™" attachment for a cheap roller blind from Argos. While more expensive, more substantial blinds can have a motor fitted inside the blind tube itself, cheaper roller-blinds have much narrower tubes.

This attachment uses a 100RPM 12V DC motor - https://www.amazon.co.uk/gp/product/B01KTZXZ1G - to control the blind.

The motor plate is held on by four M3 bolts (hex-head) going into four captive M3 nuts in the base. First, screw the motor to the plate with three or more M3 screws, then bolt the entire plate onto the frame (pushing on the motor gear first).

The free end of the blind uses the existing fitting for strength, but it should be straightforward to model a new one. If so, I'd recommend increasing the slot width and the diameter of the stalk.

I'm connecting this arrangement via a cheap IBT-2 H-bridge board to an Onion Omega board currently being used to control the "GidTech Blind-Tilt-A-Tron 2000™" -- http://www.thingiverse.com/t