TRS80 Model 3 and 4 disk/serial card mounting support

Mounting bracket for the TRS80 Model 3 and Model 4 for the floppy disk and serial boards. This fits in the square metal hole and holds the card at the correct spacing.

I use PLA and make sure you pre-screw in the bolt as it might take a bit of cleanup to make it go in. Don't over tighten as you could sheer off the screw (I have done this) snug will keep the board solid.