Cosplay light up ring

thingiverse

This was made specifically for a traditional pantomime show in the UK. There's enough space inside the hollow gem to accommodate two LEDs connected in series; I salvaged some white ones from an inexpensive flashlight/flashlight and chose to use them. All of the parts should fit together as shown in the pictures. The part labeled "switch stopper" is optional, preventing the switch from pushing back into the ring body when the button is pressed. The battery contacts are simply made from capacitor legs that are quite thick (0.8mm or 0.03in) and should be bent to fit; a slight hump where the contact with the battery is made can be created, as shown in the pictures. The wires can be secured with super glue, as well as the non-contact parts of the battery contacts. I found that the best orientation for the batteries was with the positive side facing down and wired accordingly; however, ignore the orientation of the batteries in the picture where the ring shows IKEA on top, as they should have IKEA side facing down instead. I salvaged a switch from an old monitor control panel; you may need to find something similar. The printed power button simply glues onto the switch when it's placed. The printed layer immediately above the switch might not print at all, but it's very thin and not important. The ring takes two CR 2032 batteries in a slide-out tray; the tray has a small angled groove on top to allow you to grasp the battery tray. Putting the batteries in backwards by accident seems to cause no harm to the LEDs. I covered my LED's with a transparent red candy wrapper. Colored LEDs can be an option, but make sure not to overload them if they cannot handle 3 volts each. Important note: The battery assembly will provide six volts, so make sure the combination of LEDs you use can handle this voltage. I used natural PLA filament for the gem and gold for most of the rest of the parts. I would recommend a layer height of 0.1mm for most parts; you're free to experiment with the rest of the settings as you see fit. This is quite a large ring, and the switch I used was intended for manual operation. If you want to use an external battery supply, you could feed wires into the ring through the switch hole. Enjoy! Shameless plug: Ikea sells these CR 2032 very cheaply in the UK; about £1 for eight.