About this 3D model

Drum roll please.......*clash!*...I introduce to you safebox 2.0! Instead of a gear, it uses rods to hold the safe inside of its box...It may not be as safe but it sure is clever....also, this is as large as I can make it! if you make it right its a clever way to "stash your cash" itll just look like a regular cube..... For some reason, after all of my hard work, I COULDNT CONVERT THE FILES TO .STL!!!!!!!! AHHHHHH!!!! So, if you want to print this please figure out a way to turn them into .stl..... P.S. I tried CADspan and it alters my model no matter what i turn the settings to... P.P.S. Ill try cadspan again but no promises youll get a .stl file...... Update: CADSPAN SUCKS! UPDATE!!!!!!!: I fixed it using some unorgional trial an error (i have yet to make the safe rods .stl) ANOTHER UPDATE!!: i really am bad with legal stuff so if you wish to reproduce one of these for money or modify it i don't care! Do what you want with it. Just dont sue me!