Door Knob Handle

This device allows anybody to operate a knob type door without the use of his/her hands. The device will be installed on the doorknob indefinitely.

To operate simply slide the forearm inside the armrest and push down to rotate the device will pulling/pushing the door.

Installation process:

1. Insert the leaver in its 90º angle with the teeth facing away from the locking mechanism.
2. Insert the teeth inside the ratchet located in the outer hinge of the locking mechanism.
3. Tighten the locking mechanism as close as possible to the area in the knob that has the widest perimeter.

4. Press the leaver against the handle to lock the device in place.

   4a. If the device is too tight, release some teeth operating the ratchet release button.
   4b. If the device is too loose, unlock the lever first and then continue inserting teeth inside the ratchet.

To uninstall the device simply lever and press the releasing button in the ratchet.

Print instructions

Supports are not necessary.
Print with at least 3 perimeters, about 30% infill.