Thingiverse
When assembling the catapult, I purposely made the spoon hole 1mm bigger than the post that slides into the catapult. When you put the post into place, it might be a little difficult to get it in. If it is too hard to squeeze in the catapult holes on the base, file or sand don the post just a little bit because the post should fit snugly in its holes. The two holes near the top of the catapult are for you to tie any size rubber band into (I used a Whole Foods rubber band). When you put the rubber band on the spoon, I found it better to wrap the rubber band around the spoon. If you have a hard time with figuring out how to assemble the catapult, ask me in the comments section. When printing the 5mm post, print it with 100 percent infill so it doesn't snap.
Direct link to the original creator's page
Click the "View on Thingiverse" button above to visit the original model page on Thingiverse. You can download the STL file directly from the creator's page for free.
This model is compatible with most FDM 3D printers (Creality Ender 3, Prusa MK3S+, Bambu Lab, etc.) and resin printers (Elegoo, Anycubic). Check the original page for recommended print settings and materials.
Yes, this model is available as a free download on Thingiverse. Some creators accept tips or donations.
Check the license (see original page) on the original Thingiverse page. Most STL files can be modified using free software like Blender, TinkerCAD, or Meshmixer.