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