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I started my RepSCRAP (RepRap made from junk) last April, and based it on a pair of Arduino Pro-minis. It was ... well.. marginally functional, then summer hit and family time and ... <insert procrastination excuse here> So I came back to the project recently, and have restarted my control board based on the Arduino compatible Teensy 3.1 32bit Freescale K20 ARM processor. It runs at 96Mhz, and has two hardware based "flex timer modules" used for quadrature decoding. I've ...
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/robots/show/teensy-3-1-based-3d-printer-controller