The New Hotness

This should go without saying, but I got it wrong the first time: protect those little pins that drive the ABP belt motor if you’re not using them, particularly if you have a grounded aluminum build plate a few millimeters away.

I used a pair of jumpers, side by side, that did not connect the two pins, because they were close at hand when I first shorted the build plate to the pin carrying +12 V. A jumper that connects the pins will blow the motor control MOSFET on the Extruder Controller if you (or the G-Code) should happen to ever turn it on by mistake, so you need two.

Better, just put some heatshrink tubing over both pins.

You could print up a little dummy plug for the thing…