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@CrazyN on Bumper Goals

1h 13m 47s logged

  1. The Game & Field Dimensions The Concept: A 2v2 tabletop mechanical soccer game (similar to a real-world Rocket League). The Field: Exactly 15×28 inches. The Goal Wall Layout: To avoid traffic jams, you finalized a precise layout where the cars themselves frame the goal area:0.25” gap+2” car+0.25” gap+10” goal+0.25” gap+2” car+0.25” gap=15 inches2. The Bumper Car Design (CAD & Hardware) The Scale: The robots are ultra-compact 2×2×2 inch cubes. The Mechanical Stack: * Bottom Layer: Two N20 gearmotors placed face-to-face right on the central axle line (so the car spins perfectly in place) with recessed wheels and a front ball caster. Middle Layer: A 3.7V LiPo battery centered for optimal weight distribution. Top Layer: Your custom PCB housing the microcontroller and wireless chip. The Shell: A 2×2” protective body with a completely flat front bumper face for clean ball-striking, wrapped in an impact-absorbing foam or TPU ring. Inventor CAD Status: We recently worked through a Loft tool error while trying to cap the roof of the car, looking at how to transition the square body into either a smooth dome or a flat recessed deck to mount your electronics.3. The Electronics & Control Scheme The Controller: A custom remote featuring two joysticks. The Drive Code: You are using a “Spin-to-Turn” control scheme. The Movement Stick handles driving straight forward and backward, while the Angle Stick spins the robot left or right in place. Motor Mixing: The PCB’s code will use differential drive math to mix these inputs, allowing the cars to pivot on a dime or carve smooth, sweeping turns when both sticks are used together.
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