Un-Baffled NASA Tri-Scoop

grabcad

This design features a unique characteristic - it doesn't have baffles, eliminating any restriction on blockage. For this concept, I opted for a standard one-way valve for the regolith (sand from moon or mars) to prevent it from dropping during rotation. To remove the regolith, another one-way valve is required; however, they must be pulled inward and then return to their original position, which proved to be problematic. With this challenge in mind, I began working on a solution and discovered that a torsional spring could effectively address both issues. Answers to judging criteria: 1. This design can effortlessly achieve a fill ratio of 60-63%. 2. For further details, please refer to the "Full Rassor Report.pdf" document or visit "NASA Rassor Parts Drawing.pdf" for drawing specifics. 3. Yes, manufacturing this design is remarkably straightforward and feasible; no assumptions were made during its development. 4. The design meets all dimensional requirements: Total Volume: 19.82 liters; Mass: 4.55 Kg; Maximum Diameter: 450 mm, length: 300 mm. 5. Simulation work is currently underway.