RASSOR Bucket Drum Design

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This system boasts two separate bucket drums that guarantee excavation work can proceed even if one of them is compromised; all damaged parts are easily replaced because each part of the bucket drum is secured with MS screws (alternatively, they can be welded together without using the screws). The scoop on each bucket drum measures 90mm wide and features a baffle inside that stores or pushes out regolith based on its direction of rotation. To ensure efficient transmission of power to the bucket drums, I replaced the transmission shaft with one featuring a decagonal section (inscribed within a diameter of 30mm). This design allows for the elimination of adapters, resulting in significant weight savings for the system. Moreover, the bucket drums can be oriented at 30° increments between them (a feature that could prove valuable in certain missions), and they also provide assistance with robot traction. The chosen material is TITANIUM Ti-6Al-4V Grade 5, and all components are designed for 3D printing. Key technical specifications are listed below.Technical features:Maximum total width of scoops engaged at any given time: 90mmWeight for single bucket drum: 2.5kg (x2= 5kg total)Maximum bucket drum diameter: 450mmMaximum length for single bucket drum: 180mm (x2= 360mm total)Maximum volume for single bucket drum: 12Lt. (x2= 24Lt. total)Minimum stowage volume for single bucket drum: 10Lt (x2= 20Lt. total)Fill ratio: Estimated 83% Kinematic motion was simulated using Rocky DEM by setting the simulation parameters with gravity attraction at 1,625 m / s² and a bucket drum rotation of 20 rpm.Thank you.