Catapult
thingiverse
This is a remix from Openforge 2.0 by devonjones. This is my first time doing anything like this... I made this with a rock and without. Obviously, you need to print four wheels. Wheels and wench do not need supports. The catapult does. I haven't printed this yet, but if I were, I would print it at .2 with 20% infill.
Download Model from thingiverse
With this file you will be able to print Catapult 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 Catapult.