NASA RASSOR "Chum Bucket"

grabcad

My innovative design boasts a corkscrew nestled within the drum's interior. Each end is equipped with scoops that expertly collect dirt, which is then funneled away from the openings and towards the center by the corkscrew's relentless motion. When it's time to unload the drum, its rotation reverses, forcing the dirt back towards the openings, whereupon it falls out. The rugged exterior plates are specifically designed for bolting the drum securely onto the RASSOR. Design Requirements Met: • Maximum total width of scoops engaged at any given moment: precisely 80mm • Bucket drum mass: a mere 5kg, crafted from magnesium alloy with a density of 0.063 lb/in^3 • Bucket drum Diameter: an impressive 350mm • Bucket drum Length: a substantial 250mm • Volume of regolith captured: at maximum capacity, the bucket can hold up to 23L of regolith, with an expected fill ratio exceeding 80%, translating to approximately 18.5L of regolith Judging Criteria Met: 1. Although no simulation was run to determine the true fill ratio, I confidently anticipate achieving a fill ratio of at least 80%. 2. My design operates on a simple yet ingenious principle: an interior corkscrew or auger skillfully transports the regolith from the scoops' exterior location to the drum's interior, where it can be safely stored and transferred without any risk of spillage. 3. This design boasts an attractive cost-effectiveness and low-tech production methods. The drum can be manufactured using either CNC milling or casting techniques, while the auger can be produced through CNC milling, casting, or forging processes. The scoops, in turn, can be precision-milled to exact specifications. 4. My design meticulously meets all established dimension requirements.