Going through how I converted this inexpensive Chinese 3020 Mach 3 Parallel port driven CNC machine into a Arduino based machine using GRBL software and a CNC Shield V3 to run the motors.
I also go through how I tuned the settings to make the software inputs output the correct amount of steps to linear travel accurate.
John Lauer's 3040 Conversion and Chilipepr:
http://youtu.be/42ew5xjIBWM
NYCCNC's DIY Arduino Setup Video:
http://youtu.be/1ioctbN9JV8
FIXED1Ts Fan noise reversal:
http://youtu
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