Snap Ballista (Mini)

⚠️ Disclaimer / Warning This model is a mechanical and recreational object, intended for a knowledgeable audience. It is not suitable for young children, due to the presence of small parts and projectiles. Although the projectiles of the Snap Ballista (Mini) weigh only a few grams, they can be launched over a distance of approximately 5 meters. It is therefore necessary to remain cautious during use. Use must be carried out under adult supervision. Never aim at the face, eyes, people, or animals. The use of protective eyewear is recommended during operation. This model is intended for indoor use or use in a controlled environment. Please do not use it outdoors in nature, to avoid losing projectiles and causing pollution. Regularly inspect all parts before use, and do not use the model if any part is damaged, cracked, or shows signs of wear. Any modification of the model may alter its behavior. The creator declines all responsibility in case of misuse, modification of the model, or failure to follow the safety instructions listed above. Key Features Requirements Snap-fit assembly: no screws, no glue No supports required for printing No AMS needed (single-color printing friendly) Fully mechanical mechanism, with no springs or metal parts Adjustable elevation using a worm screw system Uses only ~20 cm of MF001 nylon cord Quick and easy assembly, based on axles and pins Guided projectile for smooth and consistent operation Ideal as a mechanical demonstration object or desktop toy PLA filament (recommended for the mechanical behavior of the bow) MF001 nylon cord: approximately 20 cm (the exact length depends on the number of turns) No other hardware is required: no screws, no glue, no springs, and no metal parts. Concept and operation One of the main goals of this project was to test and make use of material elasticity, without adding springs or external components, but relying solely on the geometry of the printed parts and their mechanical properties. The propulsion is