Using the Toner-Transfer and Etch method for making prototype circuit boards is fairly common. One downside to this process is that any holes still need to be drilled. [Giorgos] hand drills boards all the time. He has a Dremel with a drill press attachment but he still prefers using a small pen-style mini drill to make the holes. There is one problem with this tool though, the on/off switch is in an non-ergonomic location. After flipping the switch tens of times during a drill job, [Giorgos] has felt some digit discomfort. He knew there had to be a better way.
His solution: a foot pedal on/off switch. This isn’t some off-the-shelf foot switch, [Giorgos] made it from parts and pieces kicking around in one of his junk drawers. The foot pedal frame is made from acrylic sheet. A couple of hinges allow the pedal to press down on an old switch, very similar to the ones found in guitar effect pedals. This switch was heavy-duty and had a strong spring that easily pops the switch and pedal back up after being pressed.
Wiring was easy, the positive lead of the DC wall wart was split and attached to the pedal’s switch. Pressing the switch makes or breaks the power connection, turning the hand-held drill on and off. [Griorgos] solve his ergonomic problem and cleaned out his junk drawer without spending a dime. We’d say that’s a triple win!
Filed under: tool hacks 
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