I’ve kind of been obsessed with trying to make circuit boards on my laser cutter since I got it. Other people had already done this by using spray paint as resist – then laser-etching the paint off non-trace portions of the board. This process still requires chemical etching – which I’ve been trying to avoid.
I had some success several months ago – making crude PCBs by laser cutting thin steel – but those boards aren’t good enough for surface mount components or anything complicated.
So – if I can’t make good boards without chemical etching – I figured maybe I could use chemicals in conjunction with the laser cutter to make some decent 2-layer boards.
After a few failures – I came up with the process documented in the video. It works pretty well! I suspect if streamlined a bit – you could go from Eagle to working board in under 90 minutes.
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.
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