Encoder recommendation for Banebots RS550 ?

[billbo911]

Originally Posted by Mr. Lim

..........If you choose to use the E4P, be sure to pinch the teeth on the disc so that they provide a death grip on the shaft. I've had a number work themselves loose during a competition.

These days I universally recommend Grayhill 63R series encoders, and to slip surgical tubing over the shaft. Slip the other end of the surgical tubing over the shaft you want to measure. Usually on a shaft that's after the gearbox, as close to the driven assembly as possible.

I would like to add a bit of advice based on our experience with the E4Ps.
There are "teeth" on both sides of the disk. Long on one side and short on the other. Only pinch the long teeth, not both. If you do both, you end up negating the pinching because the teeth pivot at the plane of the disk.