Lunar Rover

grabcad

The NASA Lunar Sampling System Design Challenge features a detailed model weighing 690 grams (excluding container and electronics box), constructed using 2mm aluminum sheet metal sheets. These can be cut with laser or water jet machines, while a manual sheet metal bending machine is utilized to create all structural parts easily. The components are then welded together. Three Nema 8 stepper motors, weighing 60 grams each and rated at 0.6A/3.9V with a holding torque of 1.8N.Cm, control the model's movement. An Arduino controller can be used for motor control, while an SQ11 HD night vision camera is recommended. Two assembly videos are provided, showcasing part assembly and movement demonstration. Solidworks models from 2018 are available upon request. The design incorporates a two-stage filtration system to collect specific rock sizes: the first stage in the shovel (disposing less than 8mm) and the second stage in the filter (preventing rocks larger than 20mm). Shovel and filter hole sizes can be customized. The rover's movement is controlled by breaking a single wheel motor and rotating the other, allowing forward/backward movement and turning capabilities.