challenger tube chassis
thingiverse
I began constructing a custom tube chassis for my Challenger 71 project, and it's currently still underway.
Download Model from thingiverse
With this file you will be able to print challenger tube chassis with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on challenger tube chassis.