Need to extend the length of the mount. Note that the bolt holes are covered by the motor. I think instead of a single mount that holds multiple motor sized, it will be fine to have a couple of mounts customized for different sizes.
- make a couple of parameterized files, one for each mount size. parms: motor bolt length, overall length, bolt size.
- fix bolt holes so they don't need to be drilled out.
- fix countersink.
- add LED holder? (one? three across on outside?)
- extend material around clamp bolts.