This is the 3d model of a Marshall double stack. Originally, I wanted to create this to make a massive Marshall wall and I'm very pleased with the results! This idea and models were helped by the grab cad community as I was able to find the Marshall emblem as an STL there (https://grabcad.com/library/marschall-vs212-combo-logo-1) and the angled cab (https://grabcad.com/library/guitarcabinet-2) to then build off the rest of the double stack

Do note, that when assembling the angled cab, place the bottom face plate first before the top face plate. 

The face plates are designed to be a snug fit so they'll snap into place when you slide them in. Only the Head face plate requires some super glue to stay in place.