This is a rocket that launches with a rubber band. You should print the body (with the fins and nose cone attached) in TPU (print with no supports) and print the bottom in PLA or a similar filament (print with supports if needed). Connect a rubber band that is slightly longer than the body tube and nose cone to the hook on the top of the bottom piece of and drop the band through the body tube so that it comes out the other side. Attach the bottom piece onto the bottom of the rocket. Put the rubber band on the tip of your finger, and with your other hand pull back on the back of the rocket so that the rubber band is stretched out and let go. Your rocket should shoot!
The author marked this model as their own original creation.