Press/release button with solenoid

thingiverse

In my Chess Clock project I wanted to create a switch that is hold down by a magnet (part of the micro solenoid), and released electronically. For this I have design this set of parts around a cheep micro-solenoid. The first piece will sit on the top of the solenoid. [Should be split before print, and glued together afterwards!] This piece will keep the lower end of the spring. The second piece holds the T-bar, and the other end of the spring. The third piece connects the second piece and the button, also acts as a bumper. The forth piece is the button, that should be located outer the case. The fifth piece should be glued to the case from the outer side. This will prevent dirt come in, but more importantly disables the button from being turned. I had 4mm face thickness in my box. The sixth piece is a bonus piece, it is required to my clock project: this is a rotary encoder knob with the same design as the button before. You will also need a spring. A spring from a ball-pen is unfortunately too hard, so I made mine out of a guitar string. A piece of nail connect the external knob with the internal parts. See details on: https://sharedinventions.com/?p=254 Featured video: https://youtu.be/8eZaJewicOY