This has to be the future for 3d printers.. 

3D Printing
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1

This has to be the future for 3d printers…
https://www.youmagine.com/designs/dc-motor-closed-loop-control-software#!design-information

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Go for it!

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I ordered one of these, and one of the newer ones that @Miguel_Sanchez is playing with. The wait is killing me.