Xcarve upgrades Nema's and belts

FYI: Over tighten belts will cause unforeseen break down and/or setbacks.
the gear on the Nema will and/or will come loose and drive off the end of the shaft and pull the sleeve off the idler pully.

FYI: keep an eye on Y1 &Y2 so they are parallel with each other.

Other than that, Inventables gotten back up and running. what great customer service group!