Learn to design, build, and compete with a real combat robot — starting with free, open-source 3D files and a full educational curriculum.
We started with zero skills and a whole lot of enthusiasm. Now we're sharing everything we've learned — free 3D print files, a complete parts list, and a curriculum built to help any family jump into combat robotics from scratch.
What You Get
The program includes free open-source 3D print files and educational materials. Electronics — motors, ESC, radio, and battery — are sourced separately, and that's intentional. Every real builder learns to work with different vendors to find and spec their own components. Our curriculum walks you through exactly what to get and why.
All structural parts available as open-source STL files — download them free and print at home or bring the files to a local print shop. Download the files now →
Step-by-step build guide and our full video series — including how to source and spec your own electronics from real vendors, just like every other builder does.
The Mind Behind the Design
Designer/Builder Extraordinaire
Cole is one of the most decorated, innovative builders in the southern USA. When he's not pursuing his degree in Aerospace Engineering at the University of Texas at Arlington, he's cooking up a new way to decimate robots in the full combat and plastic antweight classes.
Cole has one of the most successful plastic antweight ring spinners of all time, and his current entrant to the category, Sidewinder, never misses a podium. Beware to all competitors when Cole says he just cooked up something wild "just for fun," because that means something like "Muck!" (his antweight with an ungodly sized weapon) is about to slice your robot in half.
Armed with hot glue, pliers and tape, Cole can bring any bot back from the brink to clean up the field. Constantly iterating and always innovating, he comes up with novel solutions and optimizations for his robots—making him the perfect choice for the designer of a kit that will let new builders be competitive right out of the gate. As long as you don't have to fight him, of course.
Powered by Repeat Robotics
We designed the Happy Bot Kit around Repeat Robotics parts from day one. Their components are purpose-built for competitive antweight robots — not adapted from something else. That means better performance, better reliability, and a smoother build experience for the whole family.
Repeat Robotics was founded by Peter, and he has been a wonderful part of our journey in the sport. His willingness to share knowledge, his leadership in the community, and the care he puts into everything he builds have inspired our whole family. We couldn't imagine building our kit around anyone else's parts.
Repeat Robotics Components
These are the specific Repeat Robotics parts your kit is designed around. You source them directly — we walk you through exactly what to order and why.
Repeat Mini Brushed Mk2 — compact, battle-proven brushed motors purpose-built for antweight combat robots.
Repeat 2822 Mk3 — a high-performance brushless motor engineered specifically for antweight weapon systems.
ReadyToSky 35A BLHeli_S — a proven speed controller tuned for the demands of antweight weapon control.
Why Happy Bot Kit?
The 3D print files are open source and ready to download today. The full curriculum is coming in 2026 — sign up and we'll let you know the moment it's available.