"Ladder" for the GhostBusters Proton Pack (with knob too)

This is an easy print, and what I understand to be one of the harder parts to source otherwise.

I've got more in the works. These are converted from sketchup models provided me by a friend, I didn't model them. That said, converting them from sketchup, fixing the results and scaling, well, it's a lot of work.

EDIT: I've just added the military knob too. It's not as detailed as I'd like, so I don't know if it will work for you all. But here it is anyway.

So, I hope this helps so