Rev 2 Hands Free Round Door Handle Squeeze Latch - under 2" Dia

myminifactory

Rev 2 Modified design from @adapta Adaptaio. I modified design to allow for various knob sizes 2" and smaller, with a 3D printed squeeze clamping Latch, rather than the zip tie style. I printed with Clear ABS on a Zortrax M200 at 90% fill and 0.09 mm layers, but up to 0.29 mm layer will work with a little clean-up of the holes.  Support was added at 35% or more angle.  Position the parts for printing to minimize support is recommended.   There is a Clockwise turn (CW) to open and a Counter-Clockwise (CCW) turn to open version of the main part, depending on the door type you have. No hardware is required to install. Caution when squeezing the clamping latch downward. If too tight to fully latch, rotate pin and move out 1 groove and retry. If too tight, The pin will pop out of the Latch Handle Pivot points.