March 10, 2026
Description
Hello E3V2 CoreXY fellow,
I’m excited to introduce the Ender3 Eternity, the third generation of the Ender 3 V2 CoreXY conversion kit. This latest evolution builds on the strengths of its predecessors while embracing modern demands for speed, precision, and usability. With newly designed motors, the Eternity reaches speeds of up to 700 mm/s when paired with TMC2209 drivers, and even higher when using TMC5160. Combined with the X1 Hotend, it delivers blazing-fast extrusion at flow rates up to 35 mm³/s. Dual Z motors ensure a more stable first layer, while Eddy mesh calibration makes setup quicker and smoother than ever. And with a print volume that is 18% larger than the previous model, you’ll have even more space to bring bigger projects to life.
Additionally, the toolhead has been redesigned with a lower center of gravity, significantly improving stability during high-speed movements. Thanks to the new ultra-light T-Track extrusion, the complete gantry now weighs ~430 grams, ensuring smoother motion.
The integration of CanBus simplifies wiring, reduces drag, and makes installation more straightforward. Built-in webcams allow for real-time event tracking and print monitoring, while user experience has been refined with macros that streamline both setup and everyday use. A ready-to-go slicer profile provides for printing, and build is still flexibility to revert back to the original Ender 3 V2 configuration if desired.
⚡ Summary
Stepper motors | X & Y axis (coreXY) | Z & Z1 axis (dual) | |
Types: | high speed | Ender 3 (original) | |
Driver | Speed | Acceleration | |
TMC2209 no cooling: | 600 mm/sec | 12 000 mm/s2 | |
TMC2209 and active cooling: | 700 mm/sec | 20 000 mm/s2 | |
TMC5160 and active cooling | >800 mm/sec | >35 000 mm/s2 | |
Print volume | X | Y | Z |
default: | 230 mm | 230 mm | 270 mm |
up to: | 260 mm | 240 mm | 280 mm |
Printer dimensions | X | Y | Z |
No enclosure: | 435mm | 381 mm | 464 mm |
With Enclosure: | 435mm | 381 mm | 545 mm |
Hotend | max Flow | ||
Bambu tz 2.0 hotend | up to 35 mm³/s | ||
Software: | toolhead comunication | Webcam | |
Klipper | CAN (default) | Logitech C270 | |
Homing type: | Slicer profile | Assembly guideline / Step draw | |
sensoreless + Eddy (default) | available | available |
Updates:
2026.01.05 :
(3D printed) - knob latch & (3D printed) En – back – holder top was uploaded
Assembly Manual v1.0.1 has been released
Before you start this project I would like to highlight some details about this conversion:
Several steps require modification of original parts like wiring electric components, soldering, drilling holes and threads tapping and those changes require a level of expertise.
I personally suggest this project for those people who have a good understanding on 3D printing working principle and working.
Do you need help with building this printer or staying informed with the latest update?
Check my assembly guideline here: https://payhip.com/b/QjX5v (more then 160 pages step-by-step).
Email: [email protected]
License:
Creative Commons — Attribution — Noncommercial
7
SRAsolutions
