Catapult Remix (Has Wheels!!!)

This is an awesome design by uhltimate and I just had to put my own spin on it.

My version has had wheels added, different front and back plates, as well as a new spring locking system
because the springs were constantly slipping off the middle plate. I also included "Lus1to's Catapult Snapping Pins", in my opinion these pins are a must have addition so i included the file in my version.