The first design required a few changes in order to be successfully printed as a 3D model.
First re-design (showing the back of the piece, layout and number of motors, and the pieces which will support the copper strips):
The possible base of the piece:
The copper strips:
After designing this in tinkercad, I previewed the piece, using the software CURA, and printed the model, using the lulzbot taz 5.
I also want to thank Amy for teaching me about the software and printing process of the 3D printer.