Bummer! My Y axis motor on the IQ broke/got stuck this past Saturday, and I needed to replace it. I was on the list for the new, more powerful motors, but they don't have all the bugs ironed out yet, so I thought I was going to get a replacement older model and have to replace just one motor.
That was not to be. Zoltan Kasa, the remarkable inventor of this robotics program, sent me two of the new motors on Tuesday. And since they needed new mountings, he sent those as well. With great fear and trepidation I gathered together my tools: Allen wrench set, Phillips screwdriver, metal measuring tape, wire snips, wide ruler, etc.
Zoltan sent me the first set of motors, but the Y motor had a bent axle on its sensor wheel, so he needed to Fed Ex me another one, which arrived on Wednesday afternoon. Meanwhile, I took a trial run installing the X motor.
I was able to put on the mountings, level them, add the motor, change the wheel base to allow the motor to clear the railing, make sure the motor was exactly parallel to the railings and screw everything down, ascertain that the drive wheel was just a hair's breadth above the railing in the resting position, and put the right plug into the right pins -- on the X axis motor. I practiced on this one, since all parts are easily visible, unlike the Y motor. But even so, it took me two hours!