Two-stage Rocket 18mm (fits 18x70mm B-D class motors)

DISCLAIMER:

Your safety is your own responsibility. Take all advice below with a grain of salt. My advice is not professional, so I do not take responsibility for any injury or damage caused by flying this. Rocketry is an inherently dangerous hobby, and the density of PLA makes printed rockets even more dangerous than their typical cardboard counterparts. Consult rocketry guides if you are considering getting into the hobby.

Also note that this rocket has not flown in real life, so while t