Project Blackbird Modular Model Rocket

thingiverse

This appears to be a technical document detailing the design and assembly instructions for a 3D printed model rocket. Here's a summary of its key points: **Design Overview** * The model rocket is designed using 3D printing technology. * It features a modular design, allowing users to assemble and customize the rocket in various configurations. * The rocket's weight is approximately 5 oz (142g) when fully assembled with engines. **Components** * The rocket consists of several components: + Bottom section + Middle section (with mock engines) + Body tube + Motor mount stop short + Motor mount stop long + Locking rings + Motor cap bottom + Motor cap upper + Mock engine caps + Booster stage recovery caps + Locking ring tool **Assembly Instructions** * The assembly process is described in two stages: booster and final. **Booster Stage** 1. Assemble the bottom section, motor locking cap bottom, and motor mount stop short. 2. Attach mock engines to the bottom section using sturdy string and CA or Krazy glue. 3. Install booster stage recovery caps with strings tied to loops on the bottom engine caps. **Final Stage** 1. Assemble the middle section, motor cap upper, and motor cap bottom. 2. Attach mock engines to the middle section and cap with recovery system caps. 3. Slide the booster section into the middle section. 4. Add a recover system for the final stage by using estes method (see below). **Recover System for Final Stage** 1. Cut strip of paper 6" long 3/4" wide tapering to 1-1/4". Dab glue in bottom of middle tube and smush it to inside of body tube. 2. coat one side of glue, push it into the tube. 3. Attach parachute to nose cone. 4. Take about 12" of string and tie other end to rubber band, to nose cone. **Testing and Launch** The author has not yet launched this rocket but notes that with a single engine setup, you could probably use C11 engine as the lowest launch weight would be around top section inside middle tube.