
Recently i have been pondering over how the hell CNC milling machines get such precision based vector lines. I was hoping to find some tutorials for arduino that would explain the theory behind this technology. All i found out so far is that the whole thing is fairly confusing. Despite my confusion i am very happy to have found this CNC controlled etch a sketch. Its not a toy its a precision engineers dream.
A couple of people have acheived etch a scetch prefection:
http://axis.unpy.net/etchcnc
http://instruct1.cit.cornell.edu/courses/ee476/FinalProjects/s2004/jml66/EAS_final.htm
and last but not least (check out the retro main image):
http://neil.fraser.name/hardware/etch/

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