Attack on Titan 3D Maneuver Gear

The 3D Maneuver Gear apparatus from the anime Attack on Titan. So far this is just the drum and the middle part that connects the two. I'm planning on making the launchers later.

It's designed to me able to reel the line back in if you were to use this to cosplay. You may need to cut up the model to print it out full scale. Also there is a hole so that you can loop a belt through it, however, I do not know how well the middle part is designed. Please let me know if there are any problems.