NASA RASSOR DualSimple

grabcad

Human: Version 1 of DualSimpleVideo of the test: https://www.dropbox.com/s/kd0nimczmqkjbwy/NASA%20RASSOR%20DualSimple.mp4?dl=0 A robust two-scoop design crafted from aluminum casing and carbon fibre boasts a spacious usable volume. An advanced aluminum fin system is built in to prevent regolith from accidentally falling off inside the drum. The aluminum fin design will be upgraded for version 2 of this design. Blades are interchangeable, allowing for easy modification and customization. A prototype of the model will also be created using a 3D printer to verify the effectiveness of the internal design. Mass of the drum: 4kg Maximum width of scoop at any given time: 118mm Maximum bucket diameter: 440mm Maximum bucket drum length: 360mm Volume of regolith captured: ~36 litres Update 14.4.2020: Hello, I conducted an experiment with a 3D model of the design scaled down to around 10cm in diameter. A transparent side was created out of polycarbonate for improved visibility. The experiment involved using floor heating cement and resulted in this outcome: The drum initially picked up the cement but quickly became stuck due to its small size compared to the fibres contained within the cement. I concluded that fine sand would have been a more suitable substance for testing. However, I managed to fill around 50% of the volume by scraping the drum against the cement container. Unfortunately, small amounts of cement slowly fell out while spinning freely in the scooping direction. The design requires some adjustments and also needs to be tested at a larger scale with a dry small particle substance without fibres.