Artist Morag Hickman uses ferric chloride for copper etching to make jewelry, not PCBs. The film crew Tortoise Butler made a short film about her process, via hackaday:
[Tortoise Butler] is a small film crew that created this three and a half minute film on the art of etching copper, and it is an absolute pleasure to watch. There are no computers, no toner transfers, and she doesn’t even etch on a flat surface. It’s an excellent example of doing something different — why not add etching to finish off a project? If you’ve already done PCBs, it can’t be that hard to do a logo instead!
Anyway, it’s been a while since we’ve shared a handmade hack, and we think this is a great example that deserves the spotlight. Don’t forget to send in your own handmade projects to the tips line!
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Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.