Raspberry Pi 3 Gameboy

In order to fit the screen, the screen area needs to be widened.

I used a file for that:

I took the tetris cartridge apart and cut the lower part around the line as good as possible. I also cut down all the posts inside the cartridge. The cartridge was so brittle that it literaly fell apart when I cut it, but that is OK because you won't see that when it is slotted in the gameboy. I then glued the two halves together with hot glue:

Most of the battery compartment has been removed in the same way So the raspberry pi fits inside:

Then I widened the charging port with a file too:

Then you can glue in the charging port:

The Mini USB breakout board doesn't fit in the original spot for charging the gameboy, it's just a little to bulky, so we have to trim it.

For that I used a hacksaw:

Some pins have gotten cut off, but that is OK, because we can still use the ones near the center. To gain access to them, I used a glass-fibre pen to scrape off the PCB's protective film and expose the copper:

Then I test fitted it again and filed it untill it fitted fine:

Also, as you can see there, I already have removed one data line with a knife. I did this for all remaining lines except 5V and GND, as I only need those.

After that is done, I soldered on the wires to the 5V and GND lines:

In order to fit the Raspberry Pi 3 into the gameboy better, we have to strip it down (desolder IO's)

For that I have used desoldering wick, a solder sucker, and a metal prying tool:

I have used 350 °C on my soldering iron. This is the result:

Here I drilled a hole in the center of the gameboy shell and test fitted the analog sticks to see how the would "feel":

I was happy with it, so I did the same for the lower left: