I wanted a real arcade joystick + buttons, so I ordered these online and they do feel really good.
Here's where it fits into. I made sure to add more support structures in the design to ensure it would be rigid and not flex when in use.
This is what it looks like, complete with the coin slot and front button panel. Here, I am just testing the controller on my Android tablet first.
Now to print the bottom parts under the controller.
Here's the front half of my arcade machine completed!