Snapmaker Orca V2.4.0 Beta Test- Join In!

Software Snapmaker Public Beta
1

Hi All,

The next release for Snapmaker Orca would be V2.4.0 which includes major version upgrades of three underlying dependencies — OpenSSL, the macOS CI build environment, and Flutter. We have completed the first round of Alpha Testing in the private subcategory, and the key issues found have been addressed.

Now, we are excited to open up Beta Testing here to more community users.

If you’d like to be a beta tester, welcome to join the Beta Test Category.

Upgraded Components

Componet Old Version → New Version Scope of Impact
OpenSSL (network security library) 1.1.1w → 3.5.7 (LTS) All network-connected features: account login, asset download, remote print submission, device connection
macOS build environment CI host migrated from macos-14 to macos-15

(macOS15 host + Xcode16 toolchain)		 macOS packages only: packaging, code signing & notarization pipeline, backward compatibility with older macOS releases, toolchain-level differences
Flutter (embedded web framework) 3.24 → 3.41 All embedded web pages: homepage, login page, model library, device page, calibration page

Download link & Firmware Release Notes:

Upgrade Notes: We recommend upgrading Snapmaker device firmware to 2.0.0 or higher before installing this version.

New Features

  • Added Highlight-on-Select for models to improve interaction experience

When a model is selected, its bounding box is displayed and its edges are highlighted in white.

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In assembly mode, the selected model’s edges are highlighted in yellow.

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  • Added LOD (Level of Detail) system to improve rendering efficiency in complex scenes.

  • Added color selection in Auto Match Mode for Color Mixing Match. You can now select filament colors manually.

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  • Added 6 new filaments, all compatible with Snapmaker U1:
Filament Compatible Nozzle Diameters
Snapmaker TPU 0.4 mm, 0.6 mm, 0.8 mm
Snapmaker PEBA 90A 0.4 mm, 0.6 mm, 0.8 mm
Snapmaker PLA Glow 0.6 mm, 0.8 mm
Snapmaker PLA Rainbow 0.2 mm, 0.4 mm, 0.6 mm, 0.8 mm
Snapmaker Support for PLA 0.2 mm
Snapmaker PETG-CF 0.6 mm, 0.8 mm

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  • Expanded color options for multiple filaments:

  • Snapmaker PVA: +1 color

  • PETG Translucent: +1 color

  • Support for PLA: +1 color

  • Snapmaker PLA Rainbow: +1 color (with 5 color values)

  • PLA Basic: +2 colors

  • Snapmaker TPU: +2 colors

  • PLA Full Spectrum: +4 colors

  • Snapmaker PEBA 90A: +5 colors

  • Snapmaker PLA Glow: +5 colors

  • PLA Snapspeed: +10 colors

  • PLA Silk: +14 colors

Improvements

  • Streamlined print profile presets.

Presets of the same layer height but different quality levels (e.g., “Fine” and “High Quality”) have been merged into “Standard” presets. The detailed mapping is shown below:

Removed Profile (0.4 mm Nozzle) Mapped To
0.08 Extra Fine @ Snapmaker U1 (0.4 nozzle) 0.08mm Standard @ Snapmaker U1 (0.4 nozzle)
0.08 High Quality @ Snapmaker U1 (0.4 nozzle) 0.08mm Standard @ Snapmaker U1 (0.4 nozzle)
0.12 Fine @ Snapmaker U1 (0.4 nozzle) 0.12mm Standard @ Snapmaker U1 (0.4 nozzle)
0.12 High Quality @ Snapmaker U1 (0.4 nozzle) 0.12mm Standard @ Snapmaker U1 (0.4 nozzle)
0.16 Optimal @ Snapmaker U1 (0.4 nozzle) 0.16mm Standard @ Snapmaker U1 (0.4 nozzle)
0.16 High Quality @ Snapmaker U1 (0.4 nozzle) 0.16mm Standard @ Snapmaker U1 (0.4 nozzle)
0.2 Strength @ Snapmaker U1 (0.4 nozzle) 0.20mm Standard @ Snapmaker U1 (0.4 nozzle)
0.2 Standard @ Snapmaker U1 (0.4 nozzle) 0.20mm Standard @ Snapmaker U1 (0.4 nozzle)
0.24 Draft @ Snapmaker U1 (0.4 nozzle) 0.24mm Standard @ Snapmaker U1 (0.4 nozzle)
0.28 Extra Draft @ Snapmaker U1 (0.4 nozzle) 0.28mm Standard @ Snapmaker U1 (0.4 nozzle)
Removed Profile (0.2 mm Nozzle) Mapped To
0.06 High Quality @ Snapmaker U1 (0.2 nozzle) 0.08mm High Quality @ Snapmaker U1 (0.2 nozzle)
0.06 Standard @ Snapmaker U1 (0.2 nozzle) 0.08mm High Quality @ Snapmaker U1 (0.2 nozzle)
0.08 Standard @ Snapmaker U1 (0.2 nozzle) 0.08mm High Quality @ Snapmaker U1 (0.2 nozzle)
0.08 High Quality @ Snapmaker U1 (0.2 nozzle) 0.08mm High Quality @ Snapmaker U1 (0.2 nozzle)
0.10 Standard @ Snapmaker U1 (0.2 nozzle) 0.10mm High Quality @ Snapmaker U1 (0.2 nozzle)
0.10 High Quality @ Snapmaker U1 (0.2 nozzle) 0.10mm High Quality @ Snapmaker U1 (0.2 nozzle)
0.12 Standard @ Snapmaker U1 (0.2 nozzle) 0.12mm Standard @ Snapmaker U1 (0.2 nozzle)
0.14 Standard @ Snapmaker U1 (0.2 nozzle) 0.12mm Standard @ Snapmaker U1 (0.2 nozzle)
Removed Profile (0.6 mm Nozzle) Mapped To
0.18 Standard @ Snapmaker U1 (0.6 nozzle) 0.18mm Standard @ Snapmaker U1 (0.6 nozzle)
0.24 Standard @ Snapmaker U1 (0.6 nozzle) 0.24mm Standard @ Snapmaker U1 (0.6 nozzle)
0.30 Strength @ Snapmaker U1 (0.6 nozzle) 0.30mm Standard @ Snapmaker U1 (0.6 nozzle)
0.30 Standard @ Snapmaker U1 (0.6 nozzle) 0.30mm Standard @ Snapmaker U1 (0.6 nozzle)
0.36 Standard @ Snapmaker U1 (0.6 nozzle) 0.30mm Standard @ Snapmaker U1 (0.6 nozzle)
0.42 Standard @ Snapmaker U1 (0.6 nozzle) 0.30mm Standard @ Snapmaker U1 (0.6 nozzle)
Removed Profile (0.8 mm Nozzle) Mapped To
0.24 Standard @ Snapmaker U1 (0.8 nozzle) 0.24mm Standard @ Snapmaker U1 (0.8 nozzle)
0.32 Standard @ Snapmaker U1 (0.8 nozzle) 0.32mm Standard @ Snapmaker U1 (0.8 nozzle)
0.40 Standard @ Snapmaker U1 (0.8 nozzle) 0.40mm Standard @ Snapmaker U1 (0.8 nozzle)
0.48 Standard @ Snapmaker U1 (0.8 nozzle) 0.40mm Standard @ Snapmaker U1 (0.8 nozzle)
0.56 Standard @ Snapmaker U1 (0.8 nozzle) 0.40mm Standard @ Snapmaker U1 (0.8 nozzle)
  • Improved slicing stability for large models.
  • Improved upload and printing stability for G-code files.
  • Upgraded OpenSSL library to version 3.5.7, enhancing network communication security and stability.
  • Added a default value for the “Flow Compensation Model” parameter when “Small area flow compensation” is enabled, reducing manual steps.
  • Updated the app icon and the web setup wizard / homepage logos, including a fix for the Windows taskbar icon rendering too small.

Bug Fixes

  • Fixed an issue where API response content was incorrectly displayed on the page after successful GitHub login.
  • Fixed an issue on Windows where the device connection status became abnormal after the screen turned off.
  • Fixed an issue where an unexpected error dialog appeared when Orca failed to connect to the device.
  • Fixed an issue where the login prompt continued to appear after a successful third-party authorization login.
  • Fixed an issue where the system incorrectly prompted for re-login after 24 hours of continuous login.
  • Mitigated white screen issues on the Home page, Device page, and Preview page under weak network conditions on all platforms (effective only in 2.4.0 and later versions).
  • Fixed an issue where Snapmaker PETG HF had no official color configuration under the 0.4 mm nozzle.
  • Fixed an issue where the old color palette was still displayed when clicking the color swatch for Snapmaker PETG HF under the 0.4 mm nozzle.
  • Fixed an issue where the software failed to launch due to missing content in the hints.ini file.
  • Fixed an issue on macOS where models opened from Snapmaker Space links were dropped.
  • Fixed an occasional crash when sending a print job. When the device filament information cache was double-encoded, the connection-success callback would throw an exception and terminate the process; the fix has been applied on both the C++ side and the embedded web (Flutter) side.
  • Fixed a crash when opening the preset comparison (diff) dialog.
  • Fixed abnormal loading of embedded web pages on macOS. Web navigation now waits until processing is ready before proceeding; a runtime status report for the embedded web pages has also been added (a 2-minute watchdog, reported regardless of sign-in status) to help keep diagnosing blank-screen issues.
  • Fixed the Home / Device pages failing to render (blank screen) on macOS. The issue stemmed from concurrent WKWebView loading combined with local network policy restrictions; the fix has been verified on two macOS machines.
  • Fixed calibration failures caused by mismatched configuration value types. This was a lingering effect of the Alpha’s process migration, affecting parameters such as enable_overhang_speed, initial_layer_speed, and slow_down_layer_time.
2

Great work on Snapmaker Orca! I use it with the Snapmaker 2.0 and Dual Extruder. Is there a possibility that you can implement the Dual Extruder with 2 different nozzle sizes?

My setup is left hotend: 0.8mm and right Hotend: 0.6mm. If I create a printer profile it will only accept one of the nozzle sizes. Even though there is a drop down to select the other nozzle, but it just changes the printer profile to the standard A350 profile as soon as I select the second nozzle size. Even in machines settings I adjusted to 0.6 on the other extruder but this did not work either.

I couldn’t find any specific topic about how to use different nozzle sizes for the Dual Extruder in Snorca.

I can believe that this would be great also for the Artisan users!

3

Here you go, hope it works for the dual extruder too :smirking_face:

4

Title: Snapmaker Orca 2.4.0 blocked by Windows 11 Smart App Control

Hi Snapmaker team,

I have encountered an issue with Snapmaker Orca 2.4.0 on Windows 11.

Windows Smart App Control blocks snapmaker-orca.exe and displays a message saying that the publisher could not be verified and therefore the application may be unsafe to run.

I checked the digital signatures manually:

  • The official Snapmaker_Orca_Windows_Installer_V2.4.0.exe is correctly signed and Windows identifies the verified publisher as Shenzhen Snapmaker Technologies Co., Ltd.
  • However, after installation, the actual executable located at
    C:\Program Files\Snapmaker_Orca\snapmaker-orca.exe
    has no embedded digital signature and no catalog signature. The Digital Signatures tab in Windows is completely empty.
  • Windows 11 Smart App Control is enabled, and it does not provide an option to allow only this individual application.

As a result, the official installer is accepted by Windows, but the installed Snapmaker Orca application itself is blocked from running.

Could you please confirm whether this is a known issue with version 2.4.0?

Is there a properly signed version of snapmaker-orca.exe available, or is a signed update planned?

I would prefer not to disable Windows Smart App Control system-wide just to run Snapmaker Orca.

Thank you!

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5

Hi, thank you very much for your feedback. We have received several similar reports about this scenario. A signed update is planned, and the engineering team has completed the automated local signing workflow.

The executable within the Windows_portable build is signed. It is recommended to try the portable package for the time being.

Update:

The engineer has now offerred a signed Snorca Build:

6

I’ve run into two issues with this update. After installing and doing the firmware upgrade requested for my U1, I’m now getting a “Error code 0003-0529-0000-0001” on the U1 touchscreen if I try to upload and print directly from my windows 11 computer. It prints just fine if I upload it only and go downstairs to the unit to print from the touchscreen. This did not happen with the first few prints I did after upgrading to this version but now it’s doing it every time.

I would also like to request a way of turning off the white glow when selecting objects. I find it very distracting and really hard when trying to line up overlapping imported objects. Thanks.

7

Thank you for your feedback.

I’ve forwarded this feature request-option-to-disable-selected-part-highlight-glow to the software development team for further review. I’ll update this feature request if there is any further progress.

Could you please provide a screenshot of the error message-Error code 0003-0529-0000-0001?

Which firmware version is currently running on the U1: V1.6.0 or V2.0.0?

Could you also submit a support ticket including the U1 system log?

8

is there any way I can modify internal bridge density to more than 100%, and if you can’t, please unlock this option, the people at Orca Slicer have already understood this and unlocked it. I have printed with the bridge more than 100% with very good results. thank you

9

Firmware version on my U1 is 2.0.0.

The error code message appears to have rectified itself after I switched to Lan from the Cloud settings I had initially set the printer up under.

10

the self-fixing error after switching to LAN is such a classic — makes you wonder what cloud mode was even doing there in the first place.

11

Hi, I’m afraid Snapmaker Orca does not support bridge density values above 100% at the moment.

Would you mind submitting a feature request in the following category? This lets other users with the same need vote for it.

Could you also include details explaining why you’d like this feature?

12

Update(2026.10.8)

Hi all,

Snapmaker Orca V2.4.0 has been released for some time now, so I’ll close this Beta Test topic.

Snapmaker Orca V2.4.0

If you run into any issues with V2.4.0, please feel free to create a new topic here:

Best regards.