Broken nozzle_type placeholder #192

New Issue

MrUnknownDE · 2026-04-05T16:18:56+02:00

MrUnknownDE commented

2026-04-05 16:18:56 +02:00

Originally created by @Flipqy777 on 3/23/2026

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.2

Operating System (OS)

Windows

OS Version

WIndows 11

Additional system information

No response

Printer

Custom Anycubic i3 Mega-S (yet, any printer is probably affected)

How to reproduce

Edit printer preset
Edit machine start G-code
Add nozzle type to start G-code, for instance :

NOZZLE_MATERIAL="{nozzle_type}"

Save
Slice

Actual results

There's an error dialog when slicing :

Referencing a vector variable when scalar is expected

It "expects" some kind of array to be provided. As a result, instead of having a string for nozzle material, we now have an integer since nozzle_type[current_extruder] always outputs 1 as value (at least for me), whereas it should output "brass" or "hardened_steel" or whatever.

It also breaks the filament filtering for people who, like me, disallow abrasive filaments to be shown if a printer profile doesn't use a hardened nozzle.

Expected results

nozzle_type placeholder should, like in previous versions, output a string, not an enum. Or, if it has to be an enum, nozzle_type[current_extruder] should output a string matching the nozzle material of the current or initial extruder (depending on whether initial_extruder or current_extruder is used) .

Project file & Debug log uploads

MGN12_25mm_Block.zip
debug_Mon_Mar_23_20_26_30_40492.log

Checklist of files to include

Log file
Project file

Anything else?

No response

*Originally created by @Flipqy777 on 3/23/2026* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.2 ### Operating System (OS) Windows ### OS Version WIndows 11 ### Additional system information _No response_ ### Printer Custom Anycubic i3 Mega-S (yet, any printer is probably affected) ### How to reproduce 1. Edit printer preset 2. Edit machine start G-code 3. Add nozzle type to start G-code, for instance : > NOZZLE_MATERIAL="{nozzle_type}" 4. Save 5. Slice ### Actual results There's an error dialog when slicing : > Referencing a vector variable when scalar is expected It "expects" some kind of _array_ to be provided. As a result, instead of having a string for nozzle material, we now have an integer since _nozzle_type[current_extruder]_ always outputs **1** as value (at least for me), whereas it should output "_brass_" or "_hardened_steel_" or whatever. It also breaks the filament filtering for people who, like me, disallow abrasive filaments to be shown if a printer profile doesn't use a hardened nozzle. ![Image](https://github.com/user-attachments/assets/9a6e5b07-1f1c-4043-9456-c6d6a7f336fe) ![Image](https://github.com/user-attachments/assets/152952e6-3f46-4e3b-9f19-8e52896f2af9) ![Image](https://github.com/user-attachments/assets/5f60c4fb-be8e-43cf-a464-a5a85a2dce76) ![Image](https://github.com/user-attachments/assets/a414e5be-87fd-4dad-bae2-481e67ad96d9) ![Image](https://github.com/user-attachments/assets/2951e010-bb58-450e-abe9-b536a3dd61d4) ### Expected results _nozzle_type_ placeholder should, like in previous versions, output a _string_, not an _enum_. Or, if it has to be an _enum_, _nozzle_type[current_extruder]_ should output a _string_ matching the nozzle material of the current or initial extruder (depending on whether _initial_extruder_ or _current_extruder_ is used) . ### Project file & Debug log uploads [MGN12_25mm_Block.zip](https://github.com/user-attachments/files/26194341/MGN12_25mm_Block.zip) [debug_Mon_Mar_23_20_26_30_40492.log](https://github.com/user-attachments/files/26194383/debug_Mon_Mar_23_20_26_30_40492.log) ### Checklist of files to include - [x] Log file - [x] Project file ### Anything else? _No response_

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 labels 2026-04-05 16:18:56 +02:00

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Reference: github/OrcaSlicer#192