This key turner is a useful assistive device for people with arthritis or missing digits to operate their keys. Users loop their finger through the hole and twist to lock and unlock doors with minimal wrist movement.
This was designed to print in ABS, and the suggested fill density in the specification was 70%. The attached gcode has the same fill, but is set up for Prusament PLA.
Use an M4 machine screw with washers to attach a key.
Makers Making Change is an initiative of the Neil Squire Society, a Canadian non-profit that helps people with disabilities.
We are committed to creating a network of volunteer makers who support people with disabilities in their communities through 3D printing assistive devices. Check out our library of free, open-source assistive technologies with parts and build instructions: https://www.makersmakingchange.com/
The author hasn't provided the model origin yet.