I've attached a
.svg for Inkscape or a
.pdf for printing which I used to lay out the holes (here's the spreadsheet I used for calculating the locations of everything). The paper should be placed horizontally with the line across the top and the paper aligned to the top, left corner. Another copy of the paper should be placed in the same spot and opened like a book so it's upside down on the right side of the frame (with the print side down, but the dotted line continuing across the board). This second paper should be aligned to the top, right side. There will be some overlap in the middle between the two pieces of paper. The center of dotted line is the location of the top of the Game Boys. The dots are for the holes to mount the 3D prints.
Laying out the Game Boys required calipers, math, and patience.
I used small nails in the dots of the paper to align and adjust the Game Boys and thus the paper to make everything perfectly spaced. I measured about 0.19" between each Game Boy. Based on your printer, there may need to be slight adjustments. I had to move things 1/8" off of my calculated measurements due to how the image was printed.
I used nails in the printed dots to align the prints.
Once I was satisfied with the placement, I taped the paper to the board so I could make the holes.
I used an automatic center punch to mark the locations of the holes on the backer board and a small drill bit to make the holes. I had some screws that worked and I just screwed them from the back of the board into the 3D prints. I bent the tabs onto this backer board to hold it in place. There wasn't room to use the cardboard mounting plate anymore so I found a new way to mount the frame.
I used the punch on the printed holes to transfer the location.
I drilled a hole and screwed through the board to mount the 3D prints.
I couldn't use the stock backer board with the mounts so I added picture hangers to the frame.