About this 3D model

Initial Model rocket concept. The idea is to have modularity. This is a rough draft of the entire set of objects. They will be refined and broken up later. Components: 1) Fin can tube: should have a launch lug and a cutout for an engine retention hook 2) Tube 3) Tube coupler 4) Engine stop cylinder (goes into the fin can tube) 5) 2 sample fins