Fast detachable holder for 7" Display

Fast attach / detach System for a 7" Monitor (https://www.thingiverse.com/thing:3654930)

You need 3 M5 screws 20 - 28mm long , should have a bigger flat hat (ca. 10 mm Diameter).

And a spring for pulling (not extremely necessary, probably). I found mine in a sortiment box, but I left screw holes (M3) on different positions for other springs. The arresting disc comes in two versions with release handle on different sides. To change rotation direction, just mirror the disc and the base plate. Docking plates are also provided in two versions; one with the all in one file, a second (more width) in an extra file. It's bolts are 0.1 mm thicker.