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So im posting this just to give some ideas on how to do a dyi simple plundger. So basicaly i just put a pushbutton on normally closed so that the plunger pushes the micro, and that way release it to normaly open, so once you pull the the plunger, the pushbutton turns closed, and as you release the plunger and push the button, the button opens itself again , release the ball. Do i make sense? is just english is my second lenguage and sometimes i have a hard time explaining things, but if theres enough interest, ill just post a better video on how its done.