/diy/ - Do It Yourself

Going to try leaving a tiny sliver of material (a single layer) for light from an LED to shine through, illuminating letters. I'll see how this works with a test print tomorrow, ideally the lettering is rather legible when lit, and basically indistinguishable when not lit.

On a barely related note, does anyone know a good way of making a spring-loaded 18650 battery contact? I have TPU filament and elastic bands at my disposal, honestly I think the elastic bands will work better since they're probably more heat tolerant and they're definitely a lot springier. My plan is to try and spring-load a brass spade terminal against one end of the cell. Wish I had some pogo-pins.