Slowly pecking away at this, I was able to get some tests and video created.  

First, some more build information.  The screws were added to more securely attach the gear to the camera mount adapter.  There are 3 evenly spaced around the turning axis.  It was a little snug but the height was enough for the screws to clear:

Wire management was a seat of my pants design.  With a machining background, I have to think differently with the 3D printer.  With that, I am more willing to try and fail at printing as it is only a small amount of design time.  Sure the printing takes a while, but I don't have to dedicate time working in the shop to machine a part.

That said, I decided to print some cable management.  There are 3 wire clips (is that the name?) that just slid over the edge of the aluminum angle:

They are fairly loose, but use will tell if something else will be needed.  The odd wiring management device I conceived next was based on having access to two holes that I could mount something to.  Not wanting to print it on end, this is what was come up with:

So far so good. . . 

The program for the slide was updated multiple times and is available on the github page listed under details on the main page.  Not being my native mindset (programming), if you want to chip in and help me with the program, feel free to reach out to me.

As for the current state of the project, a short video is below.  I first tried 90 degree rotation and then 45 degree rotation over the linear axis travel.  I like the effect of the latter and will plan on using that for some videos in the future.  If anything, I might change it to a lower angle for objects further away:

Future wants:

1. Synchronize both axis better.  The program takes the time between steps of the linear axis and then calculates the time between steps for the rotary axis.  This looks to lead to error of synching.  Looking for ideas.

2. Create some sort of user interface.  Could be using the LED's, adding buttons or adding an app over bluetooth.  Also looking for ideas.  Keeping in mind that, if I am using this device, I want if to be changed quickly and easily.

All and all the effect is there and I am liking where this is going.  Hopefully more to come.