Small Lightsaber

thingiverse

I created a miniature lightsaber for my kids. It's surprisingly compact, as its slender blade fits snugly within my 175mm 3D printer. This design also makes it easier for little hands to grasp and control. Honestly, it looks more like a dagger than a traditional saber. You're probably wondering how it functions, but please don't try to replicate the design; our walls aren't exactly thick enough to withstand an experiment gone wrong! This model is specifically designed to operate on a single 18650 battery, which I chose to be LiFePo4 at 3.6V. You can, however, use any other battery of similar size as long as you adjust the resistor value accordingly. The wires connected to the battery are soldered in place, and the one running along the length must be thin to fit within the confines of the design. The battery leads are fitted with a JST plug (https://images-na.ssl-images-amazon.com/images/I/61QvVvy7sNL._SX355_.jpg) near the switch area. The switch itself is an inexpensive model with a decent level of smoothness. Additionally, I've used standard 5-10mm LEDs with a respectable 8000mCd output.