I have been wanting to be able to have a more realistic view (like viewing thru the window of an EMD F3/7) on my N-Scale layout during track level runs. I designed and 3-D printed three different versions of an aperture to cover my Polaroid Cube + mini camera.  The three different views are shown in the YouTube video.

Additionally, I found the design for an N-Scale depressed center flatcar on thingiverse.com (free download), titled “3D Printed Cam Car” done by ahyanchan, published 16 Jan 2015 ( https://www.thingiverse.com/thing:638824).  It was designed to carry a Sony HDR-AZ1 camera (which is too tall for my layout).  I modified the car design to carry my camera and printed it on my 3D printer. I had a couple extra MicroTrains trucks laying around so I put them to use on the car.  The new car frees up the previous camera car to return to duty on the layout carrying loads.

My YouTube Channel is -  https://www.youtube.com/user/tanzj