catapult from game stronghold 2.
http://stronghold.wikia.com/wiki/Catapult
If you want to make moving wheels then take part 1 & 2 (drill holes and iron pins).
attention: many support required! - not testet! - stl files fixed! - please, post photos.
See the rest of my Stronghold-Collection:
http://www.thingiverse.com/Enzi1984/collections/stronghold
| catapult.stl | 251.8KB | |
| catapult_part1.stl | 112.3KB | |
| catapult_part2.stl | 11.8KB |
