RPi Stack Rack

First timer here!
This is a Remix of MechJack's Pi rack.
https://www.thingiverse.com/thing:2187350

Nice, simple little rack. Lots of open space for air flow and cables.
I've got my Pi 4 and Pi 2 mounted to the wall of my RV temporarily.

I added two mount pins to fit an RPi 2B. Now I just clip off the pins I don't need and I can mount my RPi 4 and Rpi 2 together. I leave the larger base of the pin as a support for the Pi 2.

I used Blender to modify - blender file attached too. note: my measurements are off about 1/2 mm.