Public AGPL fork of OrcaSlicer with Full Spectrum mixed-color slicing for the WonderMaker ZR Ultra S toolchanger.
ZR Spectrum is a Windows fork of OrcaSlicer for the WonderMaker ZR Ultra S (a 4-head toolchanger).
It is not official OrcaSlicer. Do not use SoftFever or OrcaSlicer.com installers if you want mixed-color features.
Corresponding Source for this build is git tag zr-2.4.2.1.
| Publisher | Ryan AI Studios |
|---|---|
| Version | 2.4.2.1 |
| Release date | 2026-09-07 |
| License | AGPL-3.0 |
| Installer type | nullsoft |
| Architecture | x64 |
| Package ID | RyanAIStudios.ZRSpectrum |
| Install scope | All users |
| Dependencies | Microsoft.EdgeWebView2Runtime, Microsoft.VCRedist.2015+.x64 |
winget install --id=RyanAIStudios.ZRSpectrum -ewinget upgrade --id=RyanAIStudios.ZRSpectrum -ewinget uninstall --id=RyanAIStudios.ZRSpectrum -e"ZRSpectrum_Windows_Installer_2.4.2.1_x64.exe" /SYes. ZR Spectrum is free and open-source software released under the AGPL-3.0 license.
The latest version is 2.4.2.1, released on Sep 7, 2026.
The download button links to the official installer published on github.com, the same file Windows Package Manager installs. You can verify the downloaded file by comparing its SHA-256 checksum with e266e38a02f0c716ee3191a5a6106718619810b5964be1b5acc90be1350feb76.
ZR Spectrum runs on Windows and is available for 64-bit (x64) systems.
Run the offline installer with "ZRSpectrum_Windows_Installer_2.4.2.1_x64.exe" /S, or install it with Windows Package Manager: winget install --id=RyanAIStudios.ZRSpectrum -e --silent.
Open Settings › Apps › Installed apps, find ZR Spectrum and select Uninstall. From the command line, run winget uninstall --id=RyanAIStudios.ZRSpectrum -e.
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