External USB Port for ODE for GoldStar 3DO

Introduction

The GoldStar 3DO is very well encased by its shell. With an ODE installed, it's difficult to lead the USB port outside the console shell without cutting the original plastic, which is a shame. Therefore, here is my solution to this problem by utilizing the vents on the back of the console.

Parts

• Type-A USB breakout board. Widely available from Amazon and AliExpress.

• 3 sets of M2x16mm hex screws and nuts - [Link]

Printing

Print the pieces with the given orientation.

Installation

The install location of the port is the left most vent on the back of the console.

Observe the following photo for an idea about the location of the installation. I picked this location since it has the least amount of interference with existing features.

Lay the "Shell Inside" piece on the first column of the vent and thread in one M2 screw. On the back side, thread the screw through the first hole of the "Inside Panel". Make sure the half-open hole is at the bottom (due to insufficient spacing). Install a nut to hold everything in place. Make sure the pieces are line up as square as possible.

Peel and thread the 4 wires of the USB cable through the 3 sections of the last column of the vent. I threaded the wires in the following order: VBUS through the top, D- and D+ in the middle, and Ground through the bottom opening. Peel a little bit more so the soldering iron doesn't have to come close to the PCB.

Solder on all four wires to the bottom of the USB breakout board. Then, push the soldered board into the "Shell Inside" piece. It should sit nicely inside the space in this piece.

Cover the assembly with the "Shell Outside" piece. Then use the remaining two sets of screws and nuts to finally fix the assembly to the console.

Optionally, add a small sized zip-tie to attach the USB data cable to the adjacent vents to prevent unwanted movements.