Prusa Generic PETG defaulting to hot_plate_temp / hot_plate_temp_initial_layer of 45C #227

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MrUnknownDE · 2026-04-05T16:19:10+02:00

MrUnknownDE commented

2026-04-05 16:19:10 +02:00

Originally created by @BioSehnsucht on 3/21/2026

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.1-3 (AUR)

Operating System (OS)

Linux

OS Version

Manjaro (rolling release, so no version number, but it's up to date)

Additional system information

CPU: AMD Ryzen 7 9800X3D
RAM: 64GB
GPU: AMD Radeon 9070XT 16GB

Printer

Prusa MK3S (Actually MK3S+ but it auto detected my OctoPrint as MK3S, not sure it matters?)

How to reproduce

Prusa Generic PETG, and if it matters 0.20mm Quality @MK3S is selected. Slice and print.

Actual results

Hot plate is set to 45C

Expected results

Hot plate is sane value (i.e. 80C, 85C)

Project file & Debug log uploads

orca-slicer-prusa-generic-petg-45c.zip

Checklist of files to include

Log file
Project file

Anything else?

Looks like this might be coming from resources/profiles/Prusa/filament/fdm_filament_pvb.json since that's the only place I can find with 45 mentioned in that directory, the actual Prusa Generic PETG filament definitions are 85C in resources/profiles/Prusa/filament/Prusa Generic PETG.json

Trying to print without fixing this prior to slicing obviously has bed adhesion issues, to the point of failure before finishing the first layer. Manually editing the filament profile to 85C solved this for me.

*Originally created by @BioSehnsucht on 3/21/2026* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.1-3 (AUR) ### Operating System (OS) Linux ### OS Version Manjaro (rolling release, so no version number, but it's up to date) ### Additional system information CPU: AMD Ryzen 7 9800X3D RAM: 64GB GPU: AMD Radeon 9070XT 16GB ### Printer Prusa MK3S (Actually MK3S+ but it auto detected my OctoPrint as MK3S, not sure it matters?) ### How to reproduce Prusa Generic PETG, and if it matters `0.20mm Quality @MK3S` is selected. Slice and print. ### Actual results Hot plate is set to 45C ### Expected results Hot plate is sane value (i.e. 80C, 85C) ### Project file & Debug log uploads [orca-slicer-prusa-generic-petg-45c.zip](https://github.com/user-attachments/files/26156044/orca-slicer-prusa-generic-petg-45c.zip) ### Checklist of files to include - [ ] Log file - [x] Project file ### Anything else? Looks like this might be coming from `resources/profiles/Prusa/filament/fdm_filament_pvb.json` since that's the only place I can find with 45 mentioned in that directory, the actual Prusa Generic PETG filament definitions are 85C in `resources/profiles/Prusa/filament/Prusa Generic PETG.json` Trying to print without fixing this prior to slicing obviously has bed adhesion issues, to the point of failure before finishing the first layer. Manually editing the filament profile to 85C solved this for me.

MrUnknownDE added the bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug bug labels 2026-04-05 16:19:11 +02:00

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Reference: github/OrcaSlicer#227