Working on repairing opto end stops.
RepRap is an open source project for designing prototyping machines that can self replicate. You can learn more at the link below:
http://reprap.org/wiki/Main_Page
To watch my build progress you can visit the thread I started at the RWGresearch.com forum hosted by open-source-energy.org:
http://open-source-energy.org/forum/showthread.php?tid=124
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https://www.youtube.com/watch?v=86rc-NpyaK0