Quick Print UV Led Flashlight

This is a quick print flashlight that I designed as a simple end of the week project from my Kid's Electronics class, Silly Circuits.

I've designed lots of things before, but this is one of the first that I've designed entirely myself and completed it until it was done. (Took about 4 versions and three wasted prints to get it right!) I'm kind of proud of it, so I hope you can find some use from it! It was designed flat, and with quickness of printing in mind, so you can hopefully print up enough on a single plate to make the time worth it.

I did record this session on twitch so I'm in the process of making the video of how I made this. You can check my youtube channel.

https://www.youtube.com/channel/UCSKgVf4-d1Jr6MS-xqdk9qg

The 3mm UV LEDs have a forward voltage of 1.2-1.8v and used a CR2032 coin battery for voltage. Due to the low voltage of these batteries, a current limiting resistor is not necessary as the LEDs seem to have sufficient internal resistance.

The Button