PLA Rocket Engine

thingiverse

I designed a custom rocket nozzle using the Waterside generator to create a convergent-divergent nozzle for use with a black powder rocket engine. I 3D printed the engine in PLA, despite its low melting point, and was pleased to find that it performed well without sustaining any damage. The motor's integrity remained intact even after firing, leading me to consider it reusable. The engine achieved a burn time of approximately five seconds and an estimated thrust of 20g.