RASSOR Bucket Design

grabcad

My design revolves around eliminating mechanical failure risks, achieving a maximum fill ratio, and ensuring equal weight distribution. Serrated titanium blades are used to break up hard or frozen regolith, while also filtering out large rocks and pushing the material towards a central opening. A fixed internal auger forces the regolith to the drum's outer edges once inside. Counterclockwise drum rotation performs excavation, while clockwise unloads the drum, creating only one large entry point that could potentially slow down loading and unloading but maximizes regolith capture per trip, reducing the number of trips needed for the same amount of captured regolith. The chosen materials are titanium, carbon fiber, and ABS plastic, each selected based on weight and durability. The outer hull is 3mm thick carbon fiber, while the internal auger is 4mm ABS plastic. My aim was to achieve the highest possible fill ratio; theoretically, with one opening of 114 mm and a cutting edge, the fill ratio should be around 85% or higher. Other specs include: Length: 360 mm, Blade Diameter: 375 mm (tooth to tooth on blade), Drum Diameter: 325 mm, Total Mass: 4.41 kg, Volume of the drum: 24.55 L, Materials: Carbon Fiber, ABS Plastic, Titanium