Friday, October 26, 2012

Successful PCB Milling Experiment

I’ve been learning electronics on and off in the past couple of years and finally decided to try milling a PCB on the Taig CNC Mill.
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“Hand” drawn PCB in Rhino with toolpaths done in MadCam.
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Milling with a .020” carbide end mill.
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Another shot.
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Very clean, no burrs.
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Holes drilled with a #59 carbide circuit board drill.
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Soldered up and working. It’s an Attiny84 microprocessor driving an RGB LED with PWM so I can get a lovely mix of colors. The headers on either side of the chip are for reprogramming and additional utility. I'm using an Arduino to program the Attiny84.