UPDATED NINJA DOOR LOCK - VERSION 3

For those of you unfamiliar with this, it is basically a means to keep doors ajar, and not slamming shut when either the AC or the furnace fan kicks on.

It also is great to keep dogs out of certain rooms, yet allow the ventilation the room needs.

The original and the revised door holder [https://www.thingiverse.com/thing:2005471] worked ok, but my wife complained that it was often too difficult to release from the door jamb and open the door.

I've had the other door holders for several years, and finally found some time to recreate with more flexibility to release, so Version 3. Now, the loop makes it easier to disengage, the the arm "snaps" onto the door frame.

I found that doors vary in thickness, so instead of custom printing one for each door, I put peel and stick felt on the surfaces that grip the door so the lock is snug.

Have fun!