🚀 High-Performance 3D Printed Model Rocket (PETG Optimized)This is a high-performance, aerodynamically optimized model rocket designed specifically to be printed in PETG. Utilizing PETG ensures excellent structural durability against high launch forces and tough landings, while offering superior thermal stability compared to standard PLA.As shown in the rendering file PDSmissle.jpg, the rocket features a sleek, aggressive silhouette engineered to slice through the air at high velocities while maintaining rock-solid stability.
📊 Flight Simulation & Technical DataThe flight dynamics of this design have been thoroughly analyzed. The complete telemetry profile is available in the attached graph calculation.png (Simulation 1: Vertical motion vs. time):Max Apogee: ~282 meters, reached at approximately 7.4 seconds into the flight.Motor Burn Duration: 2.0 seconds flat (Motor burnout).Top Speed: Reached exactly at burnout, clocking in at around 78 m/s (~280 km/h).Peak Acceleration: A violent initial kick at ignition, peaking well over $190 \text{ m/s}^2$ (as tracked by the vertical acceleration curve).Total Flight Time: Roughly 31 seconds from ignition to ground hit.
🛠 Recommended Print SettingsMaterial: PETG is highly recommended for the body tube and fins to prevent structural deformation under high stress.Layer Height: 0.2 mm for an optimal balance between layer adhesion and surface finish.Infill:Nose Cone: 10-15% (to help bias the Center of Gravity forward—add nose weight if necessary for stability).Body Tube: Vase Mode (Spiralize Outer Contour) with a thick line width (0.6 - 0.8 mm), OR 1-2 perimeters with 0% infill to keep it ultra-light.Fins: 100% infill or solid perimeters for maximum structural rigidity.Supports: None needed if oriented correctly on the build plate.
📐 Assembly & Flight Safety NotesThe rocket utilizes a high-aspect ratio conical nose cone to minimize aerodynamic drag at high speeds, paired with a stable 4-fin trapezoidal cluster at the base.
⚠️ Safety Warning: Before launching, always verify that your Center of Gravity (CG) rests at least one body diameter (1 caliber) ahead of the Center of Pressure (CP) to ensure a straight, stable, and safe flight path as simulated.
If you print this model or take it to the launchpad, please post a "Make"! I'd love to see your real-world builds and flight data logs.
Modellquelle
