T250 – World's Fastest Open-Source 3D Printer

The T250 is a next-generation, high-performance 3D printer built from the ground up for speed, reliability, and print quality.
With verified real-world acceleration of up to 250,000 mm/s² and sustained print speeds exceeding 1,000 mm/s, the T250 sets a new benchmark in open-source high-speed 3D printing.

⚠️ This is not your average printer project. The T250 is designed for experienced builders and performance enthusiasts.

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• Prints a Speedboat in under 2 minutes
• Produces high-quality parts 4× faster compared to a Bambu Printer
• Currently ranks #1 on the world’s fastest printer leaderboard
• And the best part: It’s 100% open-source.
  All resources needed to build your own T250 are available in this repository.

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🚀 Key Features

• 💨 Acceleration: Up to 250,000 mm/s² – proven in real prints, not just on paper
• ⚡ Speed: Infill at 1500 mm/s, outer walls at 600+ mm/s
• 🔄 Motion: Quad-motor CoreXY Kinematics, driven by TMC2160 stepper drivers at up to 60 V
• 🧠 Toolhead: Custom direct drive, center-of-gravity optimized for rod-based gantry
• 🔥 Hotend: Compatible with all major high-flow systems (Rapido, Mosquito Magnum+, Goliath, etc.)
• 🌪️ Cooling: Remote CPAP cooling + dual side blowers + active motor cooling
• 🛏️ Leveling: Automatic Z-tilt bed leveling with real-time distance measuring sensor
• 📦 Build Volume: 192 × 212 × 175 mm
• 🌈 Design: Cable routing inside the frame, RGB lighting along the top frame, enclosure-ready layout
• 🧑‍💻 Firmware: Based on THEOS / Klipper, optimized for high-speed printing
• 🧾 Open Source: All files, configs, BOMs and documentation provided

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Links

• Bill of Material
• Join our Discord Server
• Support this Project on Patreon
• Grab the CAD files
• Our Community on Facebook
• Printers built by the Community

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Print Settings

To print the STL files, a 3D printer with a print bed of at least 350x350mm is required. I've printed most parts out of PLA. It's recommended to print the Carriage out of Nylon/ASA. For all STL Parts i've used the following settings:

• 0.25 Layer height
• 0.5 Line width
• 5 Top layers
• 5 Bottom layers
• 5 Walls
• 25% Infill
• Grid infill for the Frame parts and Gyroid for the Gantry & Toolhead parts

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Input shaper results

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📎 License

This project is licensed under the Creative Commons (Attribution-NonCommercial-ShareAlike 4.0 International).

You are free to build, remix, and adapt the printers design as long as you give credit, indicate changes, and use it only for non-commercial purposes. Any derivatives must be shared under the same license, and you may not impose additional legal or technical restrictions.

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❤️ Credits

• Developed and tested by @MattThePrintingNerd
• Special thanks to @Volgger, who supported the entire Alpha phase with testing, feedback, and countless improvements that helped shape the final printer.
• Endless gratitude to all my Patreon supporters, whose ongoing support makes projects like this possible!

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Ready to build the world's fastest open-source printer? Let's go.