Motion tracking real time Frogger

An excellent project that feeds real time traffic data to the retro arcade game Frogger. I really enjoyed the mode of promo video as well.

Project created by Tyler DeAngelo

http://tylerdeangelo.me/site/#/portfolio|other/5th-ave-frogger

can you draw a perfect circle?

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/