Keychain flashlight

prusaprinters

<p>This is a quick and easy solution to have a light source on your key chain.</p><p>You will need a CR2032 cell and a 3mm or 5mm white LED</p><p>Slightly widen the gap between anode and cathode of the LED so it is bigger than thickness of the CR2032 cell. To turn light on just press the keychain's body.</p><p>For the printing you can use any filament, save some very flexible ones. You can even try to print it in resin. PLA and PET-G are probably the best solution because of better part cooling during printing.</p><p>FDM printing time with 0.4 mm nozzle, 0.2 mm layer height and 100% infill is about 20 min for 3mm LED version, respectively 27 min for 5 mm LED version.</p><p>No supports, no gluing needed</p>