About this 3D model

He is my concept model of a rocket pack I made my grandson. Easy to print and assemble. I printed at .12 layer, 30mm speed and 40% fill Print all files upright, no supports. Print pumps on CLEAN bed (small footprint) Assembly- sand parts to fit. Especially sand bottom of body for any excess plastic. Glue bracket to nozzle ( see pics)/glue tank halfs together and loosley fit pumps in bottom of tanks/ glue tanks to bracket, glue pumps to nozzle. Insert and glue magnets in cavities in body and bracket (11mmx5mmx5mm) 2 in bracket , 2 in body. Glue nosecone to body. Slide tanks in to body. Blast off!