5 1/4 to 3 1/2 adapter

thingiverse

I ended up with a card reader for the computer. The case had no mounting slot for it. I designed this adapter in Free Cad to take care of the problem. On one side is two slots, one for screws to secure the 3 1/2 inch gadget, the other for the screwdriver to fit thru. The holes to mount the 5 1/4 portion need to be drilled after locating them with a marker on test fit. I'm including the Cad files for anyone who might want to modify this. I'm no expert, but this works.