When I set out to design the Tropical Trouble 3lb beetleweight kit, the goal was simple: take the lessons learned from winning the 2024 MRCA Championship with Pipeline Punch and placing in the Top 8 at NHRL, and package them into a fully 3D-printable platform that any builder can maintain on a $180 Bambu Lab A1 Mini.
Why 100% 3D-Printed Construction?
Traditional billet aluminum or carbon-fiber beetleweight kits are expensive to machine and punishing when a spare frame rail gets bent mid-tournament. By designing Tropical Trouble around a multi-zone TPU chassis with cast 45A Vytaflex urethane wheels and a 6" Repeat Robotics 2812 hubmotor spinner (217 MPH tip speed), builders can:
- Print replacement chassis, uprights, wheel guards, and forks overnight before an event.
- Modify fork geometry in CAD to counter specific opponents without waiting on a waterjet service.
- Keep the total ready-to-fight robot build cost around $440.
Compare Spec Trade-Offs in the LNCR Calculator
Before changing weapon diameters, pulley ratios, or LiHV cell counts, check out the LNCR Calculator Suite in the top navigation bar and read the full Tropical Trouble Instructions Booklet in the Wiki.