PCB Mill Turns Out Stylish Necklace

When needing a custom PCB, most of us will whip up design files and send them off to a board house. Prices are low and turnaround times are bearable, with quality that’s difficult to replicate at home. The old methods still have some value however, as [Bantam Tools] demonstrate with this attractive glowing hummingbird necklace.

The back side of the pendant neatly hides a button cell battery and a small SMD switch.

The necklace is made of copper-clad board, the type typically used by those who would etch their own PCBs at home. In this case, the board is placed on a [Bantam Tools] mill, which removes copper strategically and cuts out the final shape. This creates a series of traces on the back for a battery, LEDs and a small swtich, while creating areas on the other side of the board for light to shine through.

With a battery installed, the LEDs on the back side of the necklace glow through the fiberglass for a beautiful effect. With a PCB mill and a reflow oven, it’s remarkably easy to make, too. Of course, if you like your parts density a little higher, these FPGA earrings might be more your speed!

6 thoughts on “PCB Mill Turns Out Stylish Necklace

  1. I got a link to this post in my RSS reader, which doesn’t show the top image, but did show the bat picture. So I was momentarily confused by the part about “this glowing hummingbird necklace”.

    “But that’s not a hummingbird…”

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.