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A Group Of People In Orange Shirts Are Joyfully Posing Around A Robot. One Person Is Being Held Horizontally Across The Group. They Are On A Stage With An Industrial And Tech-Like Setting.In the world of BattleBots, every match is a high-stakes contest of engineering, strategy, and raw power. With thousands of fans watching live and millions more tuning in online, the pressure is always on to build a robot that can not only withstand crushing blows, but deliver even more devastating hits in return. That’s why Team Horizon, a dedicated BattleBots team, once again turned to Rapid Axis for custom, top-tier parts to power their latest creation, Calypso.

Team Horizon is an active BattleBots team that debuted in World Championship VII with their robot of the same name. The team is made up of 10 engineers and artists, united by a passion for pushing the limits of robot design. With 20+ years of experience, 30+ tournament wins, and 50+ top-three finishes, they’ve earned their reputation in the BattleBots arena.

Calypso is a four-wheel-drive robot with a durable HARDOX steel chassis.  Equipped with a 45lb asymmetric spinning disk, it functions as an undercutter and features two hinged forks for control, or a defensive wedge. Instead of being fully invertible, Calypso self-rights using gyroscopic forces when flipped. With a crab-themed design, it’s also accompanied by two mini bots: Pork Chop and Meat-Tornado.

A Large, Angular Robot With Orange And Black Coloring Sits On An Orange Cart Outdoors. The Robot Features Long, Pointed Appendages And Wheels, Set Against An Industrial Backdrop With Buildings In The Distance.At A Trade Show Booth Boasting The Text &Quot;Rapid Axis Provides Competitively Priced, Quality Parts; Quickly,&Quot; An Orange Mechanical Part Reminiscent Of Battlebots Captures Attention, With The Company's Logo And Other Small Mechanical Objects Completing The Display.

We’re proud to be a valued sponsor of Team Horizon and continuously help them push the limits of BattleBots designs. For Calypso, our custom parts play a key role in powering its weapon system, which is built to dominate the arena. Let’s take a look at three critical components from Rapid Axis that are key to Calypso’s deadly spinner.


Close-Up Of A Machined Metallic Component, Resembling A Piece From Battlebots, With A Central Circular Opening And Symmetrical Design. It Features Three Threaded Holes And A Shiny Surface, Placed On Crinkled Gray Paper.

1. Main Bearing Block

The Main Bearing Block is a critical component in Calypso’s weapon system, ensuring that everything stays secure under the intense forces of battle. This part holds the spinner bearings in place, keeping them aligned and preventing any wobble or instability.

With the weapon spinning at thousands of RPM, the bearing block plays a vital role in maintaining smooth, reliable operation throughout the match. By keeping the weapon secure and minimizing the risk of internal collisions, it ensures that Calypso can deliver powerful hits without risking damage to itself.

 


2. Main Spinner Pulley

A Polished Metal Wheel With A Five-Spoke Design, Reminiscent Of Battlebots Engineering, Rests On A Crumpled White Paper Background. The Center Showcases A Textured, Multicolored Pattern.

Next up is the Main Spinner Pulley, a crucial part that transfers power from the motors to Calypso‘s weapon. This pulley drives the weapon by using two V-belts, spinning it at incredible speeds to deliver devastating hits to opponents.

Rapid Axis has delivered a precisely machined pulley that can withstand the extreme forces generated during battle, ensuring that the weapon operates at its peak performance. With this component, Calypso‘s spinner becomes one of the most powerful in the competition, capable of unleashing devastating blows every time.


A Metal Spindle With A Threaded Top And Multiple Bolt Holes At The Base, Resembling Components From Battlebots, Sits On Crumpled White Paper. 3. Main Spinner Shaft

The Main Spinner Shaft is the backbone of Calypso‘s weapon system, made from high-strength, hardened steel to endure the intense stresses of combat. Precision-machined with splines on both ends, the shaft securely keys into both the pulley and the main spinner, ensuring flawless power transfer without slippage or wobble.

This design guarantees consistent performance and maximum impact force, both crucial for delivering devastating blows in the BattleBots arena. Team Horizon can rely on this shaft to perform under the harshest conditions, keeping Calypso’s spinner running smoothly and effectively throughout each match.


BattleBots: Team Horizon’s Calypso in Action

Here’s a video showcasing the full pulley assembly in action, highlighting how all the components work together seamlessly to power Calypso’s weapon system. You can see how the power from the motors is efficiently transferred through the pulley, allowing the spinner to reach thousands of RPMs.

This precise coordination between the pulley, the V-belts, and the main spinner shaft is what makes Calypso’s weapon so effective in the arena. Thanks to our expertly machined components, including the hardened steel main spinner shaft and the perfectly calibrated pulley, the weapon operates without any slippage or wobbling, ensuring that each hit packs maximum impact. Watch as the system performs flawlessly, demonstrating the power and precision needed to dominate in the BattleBots arena. 

 

Why Rapid Axis?

At Rapid Axis, we take pride in providing more than just parts—we supply the backbone of a high-performance weapon system designed to excel under extreme conditions. In a high-stakes competition like BattleBots, precision, durability, and reliability are essential. That’s why we’re committed to delivering custom, complex parts that can withstand the pressure and deliver when it matters most.

Our ability to produce top-quality components quickly and at a competitive price is what makes us a trusted partner for teams like Team Horizon. With our parts powering Calypso, they can focus on strategy and innovation, knowing their weapon system is built with the finest materials and craftsmanship. Stream Battlebots now on Discovery+.