to happen very quickly and we don't want it getting in the way.
put a generous amount of glue on the motor case (over the taped-up section). then, using a pair of pliers to grip the wire connected to the base of the contact spring (as in picture 3) firmly place the contact spring into the glue blob. hold it steady while it cools.
once the glue cools, slip the wheel back on and check the spring contact point again. as you can see in picture 4, mine was a little too close to one edge of the tape for my comfort, so i made a small adjustment to the spring by 