by WeeksB, published

LED TARDIS Earrings by WeeksB Apr 14, 2013
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LED powered TARDIS earrings from Doctor Who

Choice of file sets to print:
1 Bottom plug - for the LED option
2 Bottom plugs - for the LED option


3D Printing:

I printed my TARDIS both in ABS and PLA. For the PLA (pictured) I used Makerware with settings:
Infill: 15%
Number of Shells: 3
Layer Height 0.1
Temp: 230
Speed of extrusion: 80


LED - 3Volt
3 x 1.5V LR41 NL Button Batteries
(These can be taken directly from LED Fingerlight Item 65997)
Earring Hoops
Jewelry jump rings


1/16th drill


1) Print 3D parts
2) Drill (probably best by hand) at the very base of the small nub (pictured)
3) Insert a jump ring into the TARDIS and earring hook
4) Tape the button cells into a column
5) Bend the LED wires into the configuration pictured above. The long end of the LED is positive and needs to be the wire that top of the battery column. You will probably have to cut the ends to length. I also recommend taping the positive wire to the battery column.
6) Insert battery/LED group LED first into the TARDIS.
7) Plug in bottom piece to turn on. (will be difficult at first to get the plug to snap into place - press hard)

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Silly question: how do you turn the LED off?
(And assuming you turn it off by removing the batteries, how well does it last with opening/closing the bottom? a few times, dozens of times?)

Comments deleted.

If you are really precise, it may be possible to make a mechanism that incorporates the ring as a contact switch. That way pulling the 'pin' would shut it off.

I found that I could have the bottom just barely in the TARDIS where it wouldn't be enough to trigger the LED to go on but enough that everything doesn't fall out. However, I rarely wear the earrings with the LEDs and batteries in them because the light lasts about an hour and I find it, honestly, rather gaudy.

I'll admit this is far from the best design for light-up earrings.

I'm surprised there are no comments on this. Very clever!