OMG I LOVE THIS THING!! This little print-in-place working catapult is so cool!! I love it. I printed it with PETG-CF (carbon fiber) and it's very sturdy and able to fling things all over the room. I'm going to print another one for catapult battles. This model prints in place with no problem. All the hinges and mechanisms work perfectly. All you need is a rubber band and you're ready for castle storming, or general mayhem. It was a very quick print. I'm trying to think of some fun tabletop catapult games to play with it.