We’re now living in the golden age of PCB art. Over the last year or so, the community has learned to manipulate silk screen, copper, and solder mask layers into amazing pieces of craftsmanship. These boards are putting the ‘A’ in STEAM, and now we have fiberglass replacements for enamel lapel pins.
[jglim] didn’t have much experience with fabric, but a PCB lapel pin was something that seemed like it should work. There are really only three parts to a lapel pin — the small ornamental pin itself, a solderable spike somehow attached to the pin (usually by soldering), and a clasp that holds the pin steadfastly to a lapel. The spike and clasp assembly were easily sourced on AliExpress, with one hundred clasps available for seven dollerydoos. Attaching the spike to the PCB was as simple as adding a circular copper pad on the obverse side, applying some solder, and the liberal application of toaster ovens.
The design of the pin was based on the HTML5 logo, with the actual art done in Photoshop using a palette picked from OSHPark’s preview colors. The four colors used in this design are bare copper, a light purple for mask over copper, a darker purple for mask without copper, and a pale yellow for exposed FR4. This design was imported into KiCad with the Bitmap2Component tool.
The assembly of these lapel pins went very easily, and the finished product looks great. There’s a lot you can do with the standard OSHPark color stackup like making money of me, and this is a great example of exactly how much you can do with PCB art.