PrintJet - the 3D printable pulsejet engine

Scaled down to the size for 5 lbs of thrust, these pieces would be printed and glued / bolted together. Parts would be printed in the orientation shown in the disassembled snapshot, with no supports. Two tailpipe pieces would glue onto the combustion chamber. The petal valves would bolt through the valve plate into the intake cone by self-tapping an M3 screw into the hole. These parts would then bolt onto the combustion chamber using M3 screws, and a short piece of rubber hose would be used