Once again we’re teaming up with Open Sauce, the technology and creator festival for people who make things.
Open Sauce brings together makers, engineers, creators, strange machines, homemade robots, backyard rockets, and weird internet experiments …aaand it's a great match for a Printables challenge.
The 2026 event takes place July 17–19 at the San Mateo County Event Center in California. So if you’re nearby, stop by and say hello at our booth. :-)
This time, we’re bringing the Printables community into a real arena with a challenge built around 3D printed spinning battle tops.
Design a 3D printable spinning battle top that can be launched, survive a hit, and keep fighting in the arena like this one from stlDenise!
Your model should be ideally launched with a pull-strip or ripcord-style mechanism. Pay attention to weight distribution, contact points, stability, impact resistance, and how the top behaves when it meets another one at full speed.
If you’re coming to Open Sauce in California, you’ll have a chance to bring your printed battle top and compete with it live in the arena! You can even win some spools of Prusament at the stlDenise booth.
If you’re not coming in person, your model can still make it into the action. Someone else may print it, and give it a few seconds of glory in the Open Sauce arena, and we think it's really cool. :-)
The arena is waiting!