Raspberry Pi Test Stand

I designed this project to be a modular workbench for the Raspberry Pi 3. I suggest you start by printing just the Base and the Feet and have a nice work stand for your Pi.
One of the cool features of the Pi is the programmable IO pins. In the Backbone, the next section, I designed a pocket for a standard 82 x 55 mm, 400 point breadboard, giving you a convenient place to interface.
Going further, the next section is the Top plate. This offers support for the Raspberry Pi Camera with pan and tilt Servos, and a 7 inch LCD HDMI Display. The display is the current China flavor 7 inch LCD display for the Raspberry Pi. NOT a touch screen. This one is from ebay for under 30 USD. It has a nice driver board with both HDMI and VGA inputs. If you want just a stand alone display stand; check here.. https://www.thingiverse.com/thing:2777490
The servos used here are considered medium size (HS-422). Servos come in many sizes. If you have other servos and want pan and tilt, then please by all mean