These parts snap into the square holes behind your missing pins. If those holes are damaged these may not stay in place without the help of epoxy. The 2nd part in the image below replaces the right deck's right pin, and the 4th part replaces the left deck's left pin. You need to grind away enough of the chassis to fully expose the hole, and matches the size of the new part. Ideally you remove exactly enough so it looks clean.
For the structure between the decks that holds the left deck's right pin and the right deck's left pin, there are two options. The first one only involves grinding away the pin section and inserting the third piece in the image below. If you grind away too much by accident or just want a cleaner look, sand the entire structure off so you can snap on the larger version (the first part in the image below) and use some epoxy on the upper section to secure it well.
The set is for sale here (link). It's a single piece, so you need to snip the support bar apart and sand the stubs off each part:
There's an alternate method we tried if you only need to repair the left deck's left pin and/or the right deck's right pin. It involves heating up a 3D-printed metal pin and melting it into the case. It only works if you have good aim, don't heat the pin too much or too little, and your original pins snapped off cleanly. You may still need to open the case to secure the ends of the pins with epoxy if they feel loose at all after insertion. Since this isn't reversible, if you mess up you'll have to grind away the area you melted and prep it for the clip-in solution. These haven't been posted but if there's any interest let us know.
For the structure between the decks that holds the left deck's right pin and the right deck's left pin, there are two options. The first one only involves grinding away the pin section and inserting the third piece in the image below. If you grind away too much by accident or just want a cleaner look, sand the entire structure off so you can snap on the larger version (the first part in the image below) and use some epoxy on the upper section to secure it well.
The set is for sale here (link). It's a single piece, so you need to snip the support bar apart and sand the stubs off each part:
There's an alternate method we tried if you only need to repair the left deck's left pin and/or the right deck's right pin. It involves heating up a 3D-printed metal pin and melting it into the case. It only works if you have good aim, don't heat the pin too much or too little, and your original pins snapped off cleanly. You may still need to open the case to secure the ends of the pins with epoxy if they feel loose at all after insertion. Since this isn't reversible, if you mess up you'll have to grind away the area you melted and prep it for the clip-in solution. These haven't been posted but if there's any interest let us know.