OrcaSlicer 2.4.2

What's Changed

This is the OrcaSlicer V2.4.2 release — a maintenance update on top of 2.4.1, focused on making profiles, cloud sync, and printer connectivity more dependable. Upgrading from an older version is smoother: presets that were built on a printer or filament that has since been renamed or removed now load correctly, so you should see far fewer "missing preset" warnings. Cloud sync gets several fixes too — filament settings you had turned off no longer switch themselves back on, sync messages now tell you exactly which preset is involved, and running two copies of OrcaSlicer signed into the same account no longer logs you out at random.

Installing and updating the Bambu network plugin is reliable again, including when you switch versions on Windows. On top of that, this release fixes several crashes (rotating the prime tower, using the Measure tool, and running a Pressure Advance calibration), a couple of slicing and print-time-estimate problems, and Reload from Disk for STEP models after you reopen a project. New this time: a filename placeholder for the first object's name, clickable wiki links in the Preferences dialog, and add:north filament profiles.

OrcaSlicer is also available on the Microsoft Store for Windows users here: Microsoft Store Link ↗

For Linux users, it is available on Flathub: Flathub Link ↗

🌊 New Features & Improvements

• {firstobjectname} filename placeholder by @raistlin7447 in 14497 ↗ — Adds a new {firstobjectname} placeholder you can put in the output filename format — it fills in the name of the first printable object on the plate. In older versions the default {inputfilenamebase} would sometimes fall back to the first object's name; that was corrected earlier, but some people had relied on it to get the part name into their file names. This placeholder brings that option back, and it changes nothing unless you add it to your format. Closes #14493 and #14513.

firstobjectname filename placeholder

• Wiki links and a tidier Preferences dialog by @yw4z in 13857 ↗ — The Preferences dialog now shows clickable "Wiki" links next to settings — the same as in the sidebar — so you can open the relevant documentation in one click. It's also reorganized so related options sit together (Draco export quality under Project, the shared-profiles notification under Preset, filament sync mode next to auto-sync), combo boxes now have tooltips, there's a new "Experimental features" section under Developer, and the network-plugin Reload button has moved here from the Developer tab.

Wiki link support in the Preferences dialog

• Use number-or-percentage settings in custom G-code by @Noisyfox in 14526 ↗ — Some settings can be entered either as a fixed number or as a percentage. Custom G-code can now read these values; before, referring to one of them returned nothing. Fixes #14522.

• Name the preset in cloud-sync messages by @SoftFever in 14592 ↗ — When cloud sync reports a conflict, asks you to confirm a force-push, or says a preset is too large to sync, the message now names the specific preset involved instead of leaving you to guess which one it means.

🛠️ Bug Fixes

Profiles & presets

• Repair presets that pointed at renamed or deleted profiles by @SoftFever in 14595 ↗ — Fixes user presets that were based on — or paired with — a printer or filament profile that has since been renamed or removed, which could leave the preset broken after an upgrade. OrcaSlicer's built-in profile checks now run for every brand by default, so these broken links are caught early.

• Reconnect older presets to renamed profiles by @peachismomo and @SoftFever in 14507 ↗ — Presets you created in older versions can now find their original profile even after it was renamed — this covers Ginger (rPLA/rPETG now map to PLA/PETG), Panchroma (PLA Stain → Satin), several Elegoo RAPID/PETG naming variants, and a few Bambu Lab presets. A new automated check also tests presets from past OrcaSlicer versions against the current profiles before each release, so this kind of upgrade problem is caught ahead of time. Together these address the missing-preset reports seen after upgrading past 2.4.1.

• Keep filaments compatible with renamed printers by @peachismomo and @SoftFever in 14504 ↗ — When a printer profile is renamed, filaments you had set up for its old name could suddenly look incompatible and drop off the list. OrcaSlicer now recognizes a printer's previous names, so those filaments stay compatible — and your saved files don't need to be edited.

• Correct the type label in the preset bundle dialog by @peachismomo in 14481 ↗ — In the preset bundle dialog, process presets were labeled with the type "preset"; they now correctly show "process".