A small update on my slow motion ADT project.  I made some axle housings out of aluminum tubing.  I had to step the inside to slide in the gear motors for a nice snug fit.  I will secure them with a couple of set screws - I wanted to be able to change the motors if needed.  I also had to turn down the ends on the outside so the axle housing would fit over the rim.
My lathe DRO made it very easy to duplicate the parts.  I also finished off the rims and hubs.  Next step is to start the frame.
Here are some photos:
Richard