Below is a portion of a video that I used the camera slide:

It would be really nice to have a quick way to adjust the rotation amount over the length of the linear axis.  Preferably one that could be adjusted through a phone that is readily available.  

Along with this, adding a homing cycle.  Right now, on power up it assumes both axis are at the home locations.  Which can be difficult to get a good start and stop location with the rotational axis.  It can be ran through its paces verifying the shot is what I want, but then I have to restart it from the beginning and most likely lose what I had attempted to setup for.