I have printed the model in PLA.
For the small version the model was scaled 2300 times in Cura. The large model (bottom and top) were scaled 0.4 times (40%) in Cura.
Issues. The three support of the rocket are spheres and the center body requires printing in thin air. As result it is required to print using a support structure.
Fully equipped woodworking and metal workshop assisted by Ultimaker 2+ printer. Design and builds are artistic mechanical models in wood, brass & bronze and printable plastics. Capability for casting in aluminum, brass and bronze.