The spinner bot from the U.K. was pretty underwhelming when it last appeared in season two. But their new machine has undergone a complete overhaul, with a new vertical flywheel and steel wedge ...

Jake says the goal of Hydra’s weapon is to flip another bot to the ceiling, but it has disadvantages to the more common vertical rotators. “We started with these piano key hinges.

A spinning fidget spinner has more angular momentum than a non-rotating one. This means that it takes more torque to flip it over. It just feels weird since we are used to this angular momentum thing.

Sivertson said Sting’s vertical spinner tip speed is estimated to travel at 250 mph, capable of inflicting devastating damage to any opposing bots.

One of those teams includes the Ewert family from Dorchester with their bots Hydra and Fusion. Jake Ewert, who is responsible for Hydra, has been competing since he was around 8 years old.