Elastic Catapult
thingiverse
A small 3d printed catapult, the model already accounts for clearances. It does require an elastic band and some assembly, you will need to glue/weld the arms to the base.
Download Model from thingiverse
With this file you will be able to print Elastic 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 Elastic Catapult.