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Thing A Day 2008

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limit switchesToday I made 2 new pieces of things but not the new thing that I had intended as todays thing today. So for now the the y axis that I built for a future drawing machine, and the limit switches that I added to the etcha sketch mechanism will have to do. The etch a sketch mechanism along with 3 of the other robots need rotation sensors. I plan to build them out of the ir emitter detector pairs that all of the check readers have.

Rotation Sensors

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