M862.3 "Prusa MK4S" leads to printer reporting "printer model doesn't match" #2050

New Issue

MrUnknownDE · 2026-04-05T22:58:10+02:00

MrUnknownDE commented

2026-04-05 22:58:10 +02:00

Originally created by @Eccomi21 on 9/28/2025

Is there an existing issue for this problem?

I have searched the existing issues

OrcaSlicer Version

2.3.1-beta Build 1e87666

Operating System (OS)

Windows

OS Version

Windows 10 Pro Version 22H2 OS Build 19045.6332

Additional system information

Processor AMD Ryzen 7 7800X3D 8-Core Processor 4.20 GHz
Installed RAM 32,0 GB (31,6 GB usable)
Storage 932 GB SSD CT1000P2SSD8, 932 GB SSD CT1000P2SSD8, 932 GB SSD CT1000P1SSD8, 932 GB SSD CT1000P2SSD8
Graphics Card NVIDIA GeForce RTX 3080 Ti (12 GB)
System Type 64-bit operating system, x64-based processor

Printer

Prusa MK4S

How to reproduce

In Setup wizard select MK4S profile (0.6mm nozzle in my case)
Slice model and upload/print

Actual results

Printer reports "Printer model doesn't match"

Expected results

Printer printing what i sliced, not reporting a missmatch

Project file & Debug log uploads

3dbenchy_Printer model doesn't match.zip

debug_Sun_Sep_28_18_53_12_20984.log.0.zip

Checklist of files to include

Log file
Project file

Anything else?

I was able to fix the issue by editing the
M862.3 "Prusa MK4S" line in the gcode manually to
M862.3 "MK4S"

It really is just a preset naming issue from what i can tell.

*Originally created by @Eccomi21 on 9/28/2025* ### Is there an existing issue for this problem? - [x] I have searched the existing issues ### OrcaSlicer Version 2.3.1-beta Build 1e87666 ### Operating System (OS) Windows ### OS Version Windows 10 Pro Version 22H2 OS Build 19045.6332 ### Additional system information Processor AMD Ryzen 7 7800X3D 8-Core Processor 4.20 GHz Installed RAM 32,0 GB (31,6 GB usable) Storage 932 GB SSD CT1000P2SSD8, 932 GB SSD CT1000P2SSD8, 932 GB SSD CT1000P1SSD8, 932 GB SSD CT1000P2SSD8 Graphics Card NVIDIA GeForce RTX 3080 Ti (12 GB) System Type 64-bit operating system, x64-based processor ### Printer Prusa MK4S ### How to reproduce In Setup wizard select MK4S profile (0.6mm nozzle in my case) Slice model and upload/print ### Actual results Printer reports "Printer model doesn't match" ### Expected results Printer printing what i sliced, not reporting a missmatch ### Project file & Debug log uploads [3dbenchy_Printer model doesn't match.zip](https://github.com/user-attachments/files/22584006/3dbenchy_Printer.model.doesn.t.match.zip) [debug_Sun_Sep_28_18_53_12_20984.log.0.zip](https://github.com/user-attachments/files/22584022/debug_Sun_Sep_28_18_53_12_20984.log.0.zip) ### Checklist of files to include - [x] Log file - [x] Project file ### Anything else? I was able to fix the issue by editing the `M862.3 "Prusa MK4S"` line in the gcode manually to `M862.3 "MK4S"` It really is just a preset naming issue from what i can tell.

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Reference: github/OrcaSlicer#2050