Your Ender-3 V3 KE has good hardware. NebulaOS gives it the software to match.
A complete new system for the printer: a new Linux 6.6 kernel, current upstream Klipper,
a touchscreen app that guides you through calibration, and Mainsail in your browser.
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| NebulaScreen, built for the KE's 4.3" display | Guided calibration, in the order a new printer needs it |
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| Your bed mesh in 3D, right on the printer | Print statistics, history from stock and OpenKE included |
- 🎯 Better first layers, less fiddling. Load-cell probing on upstream Klipper, an Auto Calibration that checks the load cell, cleans the nozzle and measures Z offset and bed mesh, and live Z adjustment while the first layer goes down.
- 📐 Every calibration guided on the screen. Bed tramming that tells you which screw to turn, PID, input shaper with graphs, E-steps, skew, axis twist, TMC autotune. The menu remembers what you did and tells you when something needs redoing.
- 🛡️ Updates you don't have to be afraid of. Two system slots: an update goes into the other one and starts on trial. If it doesn't come up healthy, the printer goes back by itself. One tap installs the next version from the touchscreen.
- ⚡ Prints that survive a power cut. After an outage the printer offers to resume: bed and nozzle heated before anything moves, mesh, excluded objects and timelapse kept.
- 🔓 Standard, open, yours. Unmodified upstream Klipper and Moonraker, so every Klipper guide, macro and tool works. OrcaSlicer upload, Spoolman, phone apps and home automation connect directly. No cloud.
- 📷 Camera and timelapse built in. Creality's Nebula camera with its own settings page, USB webcams, and a timelapse that needs no slicer setup.
| Stock Creality | NebulaOS | |
|---|---|---|
| Linux kernel | 4.4.94 (2017) | 6.6, 120+ KE-specific changes |
| Klipper | Creality's old fork | Unmodified upstream |
| Calibration | A few routines | Full guided suite with history |
| Live first-layer Z | – | ✅ in 0.001 mm steps |
| Updates | Creality's updater, no rollback | One tap, automatic rollback |
| Power-loss resume | Basic | Safe order, mesh and objects kept |
| Web interface | Creality's | Mainsail + full Moonraker API |
- Download the latest release.
- Install it: Installing NebulaOS. Your old system stays in the other slot, so you can go back.
- Slice. Using OrcaSlicer? Import our ready-made
OrcaSlicer profiles
(
NebulaOS-Ender3V3KE-OrcaSlicer.orca_printerin the release) - a good starting point, not a perfect tune. - Print. The manual takes you from the first start through calibration and your slicer to your first print.
Which file?
| You are on | Download |
|---|---|
| Creality's stock firmware | NebulaOS-Ender3V3KE-F005_ota_img_V9.<version>.img. Put it on a USB stick without renaming it and install it from the stock touchscreen. When NebulaOS is up, switch the printer off and on once. |
| OpenKE | NebulaOS-Ender3V3KE-<version>.img, installed with Creality's updater over SSH |
| NebulaOS already | Nothing: Settings → Updates finds new versions by itself |
| A printer that no longer starts | NebulaOS-Ender3V3KE-<version>.ingenic, the USB recovery image. It erases the whole printer, so use it only when nothing else works: Recovery |
Supported: the Ender-3 V3 KE only (not the V3 SE). NebulaOS is community software, not made or supported by Creality.
- Troubleshooting
- Found a bug? Open an issue. The touchscreen's Settings → System → Report a problem collects the logs to attach.
Everything is open source, and the build is reproducible - measured, not asserted: 1.0.2 built twice from the same source gave the same kernel and the same root filesystem, byte for byte. The image is built and put together in NebulaOS-firmware: the architecture, the other repositories, how to build an image and how a release is made all start there.
See each repository's own license.