lego catapult 3d model

Simple compact catapult for launching a LEGO minifigure. Must fit within 150mm x 150mm x 150mm. Fully 3D-printable using only plastic, no screws, metal, rubber, glue, or external parts. Design includes a triangular base, single pivoting throwing arm, and a small cup sized for a LEGO minifigure. Use a simple printed flexure or torsion beam for energy. Include a basic snap-fit trigger mechanism. Keep geometry simple, strong, and realistic. Ensure smooth movement, proper clearances, and stable repeatable forward launches. Clean minimal engineering design, no complex or futuristic features.