Graber i3 PSU Holder

Graber i3 PSU Holder
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http://reprappr.blogspot.com.br/2014/07/graber-i3-ps-on-com-fonte-industrial.html
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My Graber
http://www.thingiverse.com/thing:182675
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Graber i3 - PS-ON with industrial source
In my Graber i3 operation of the power is controlled by Ramps 1.4, through pin PS-ON.
How to call "industrial" source does not have the same start one pin ATX power supply, it was necessary to adapt a relay to serve that purpose.
This here is the case I made to house all the elec