Pet Door Latch

The latch on my proprietary cat door broke, and needed replacement.

The existing version required going outside to release the 'lock-in' latch. My version can be operated from either side. 

Print two copies, drill an 11mm (7/16inch) hole through the frame of your pet door and connect the two pieces with a 3mm bolt and nut, with at least 25mm of thread.

Rotating either part will drive the opposite one - just turn either way to select open, lock-in, lock-out or locked.

Fusion file and 3MF file for dimension or slicing mods, as you desire….