I recreated the front mounting panel that is on the MS2931 in a Sega Blast City. I didn't have an original to measure (I had to go off a blurry shot from a youtube video) so it's probably not 1:1. All the connectors fit and even at 1mm thickness it's sturdy enough with PLA. If anyone is interested I just made it in Tinkercad with circles and squares.

Since printing the version in the pic, I've updated it to nudge the left screw hole up 1mm so it's not crooked. Model dimensions are in mm and the connector hole dimensions were sourced from their respective data sheets.

Since printing the version in the pic, I've updated it to nudge the left screw hole up 1mm so it's not crooked. Model dimensions are in mm and the connector hole dimensions were sourced from their respective data sheets.