Proper support of Bambu LAN printers

[Noisyfox]

The latest download link can be found from the "Checks" tab above or here. There should be an "artifact" dropdown on top of that page once the build is completed.

This PR solves the following problems:

• Bind printers in different subnet
• Binded LAN printers are not automatically connected when switching to Device tab

Few improtant things to know:

The automatic printer info detection (ie, the step in the first image) doesn't work on MacOS, when you click "Connect" you will immediately be prompted to the second image to enter the printer details. (I don't know why but Bambu does not provide this capability on MacOS for their network plugin)

AFAIK, P1 series do not support automatic printer info detection (as tested by @SoftFever and myself), so the first step is gauranteed to fail, which is unfortunate but expected. Simply click the "Manual Setup" button (which will appear after clicking the "Connect" button then wait for a while) and enter the printer detail and you should be good to go.
If anything entered wrong, you could simply unbind the printer and do it all over again.

I know current binding flow is not very user-friendly, but consider how rare this will be used, I think it's OK. Given the current situation this is the best I could do with the closed-source Bambu network plugin.

I only have a P1 so I couldn't throughly test this PR. Please if you have different printers and home network configurations, your feedback are valuable to help validating and improving this PR, thanks in advance!

Fix #6169
Fix #8097

[TinyWorkshopDesign]

after trying around with tailscale and an x1c, seems that what is needed to make it work is the use of a a fake packet on the port 2021.

i'm using this script:
https://gist.githubusercontent.com/Alex-Schaefer/72a9e2491a42da2ef99fb87601955cc3/raw/0bc2423a099ebde636b4067c4cb7316df2c9fa9c/bambu-ssdp-discovery.py

if I don't use this script at the moment of the connection the printer doesn't appear even with the use of the IP

[Noisyfox]

after trying around with tailscale and an x1c, seems that what is needed to make it work is the use of a a fake packet on the port 2021.

i'm using this script: https://gist.githubusercontent.com/Alex-Schaefer/72a9e2491a42da2ef99fb87601955cc3/raw/0bc2423a099ebde636b4067c4cb7316df2c9fa9c/bambu-ssdp-discovery.py

if I don't use this script at the moment of the connection the printer doesn't appear even with the use of the IP

Have you tried the manual setup option?

[TinyWorkshopDesign]

yes, the printer doesn't appear unless I lunch the script

[Noisyfox]

yes, the printer doesn't appear unless I lunch the script

Could you describe what steps have you done? It'll be even better if you could provide some screenshots of each steps, thanks.

[TinyWorkshopDesign]

sure:
Open Orcaslicer (latest nightly)
Device->NoPrinter->Bind With access code insert-> ip+access code Connect insert-> serial

the printer doesn't appear

to make it work:
Device->NoPrinter->Bind With access code insert-> ip+access code launch the script Connect insert-> serial

[Noisyfox]

sure: Open Orcaslicer (latest nightly) Device->NoPrinter->Bind With access code insert-> ip+access code Connect insert-> serial

the printer doesn't appear

to make it work: Device->NoPrinter->Bind With access code insert-> ip+access code launch the script Connect insert-> serial

What OS are you using?

[TinyWorkshopDesign]

sure: Open Orcaslicer (latest nightly) Device->NoPrinter->Bind With access code insert-> ip+access code Connect insert-> serial
the printer doesn't appear
to make it work: Device->NoPrinter->Bind With access code insert-> ip+access code launch the script Connect insert-> serial

What OS are you using?

MacOS Sequoia 15.3 (24D60)

[Noisyfox]

sure: Open Orcaslicer (latest nightly) Device->NoPrinter->Bind With access code insert-> ip+access code Connect insert-> serial
the printer doesn't appear
to make it work: Device->NoPrinter->Bind With access code insert-> ip+access code launch the script Connect insert-> serial

What OS are you using?

MacOS Sequoia 15.3 (24D60)

I see, that might be a macos specific bug, I'll take a look soon.

[Noisyfox]

sure: Open Orcaslicer (latest nightly) Device->NoPrinter->Bind With access code insert-> ip+access code Connect insert-> serial
the printer doesn't appear
to make it work: Device->NoPrinter->Bind With access code insert-> ip+access code launch the script Connect insert-> serial

What OS are you using?

MacOS Sequoia 15.3 (24D60)

Btw, where did you download the nightly build from?

[TinyWorkshopDesign]

sure: Open Orcaslicer (latest nightly) Device->NoPrinter->Bind With access code insert-> ip+access code Connect insert-> serial
the printer doesn't appear
to make it work: Device->NoPrinter->Bind With access code insert-> ip+access code launch the script Connect insert-> serial

What OS are you using?

MacOS Sequoia 15.3 (24D60)

Btw, where did you download the nightly build from?

https://github.com/SoftFever/OrcaSlicer/releases/tag/nightly-builds

[Noisyfox]

sure: Open Orcaslicer (latest nightly) Device->NoPrinter->Bind With access code insert-> ip+access code Connect insert-> serial
the printer doesn't appear
to make it work: Device->NoPrinter->Bind With access code insert-> ip+access code launch the script Connect insert-> serial

What OS are you using?

MacOS Sequoia 15.3 (24D60)

Btw, where did you download the nightly build from?

https://github.com/SoftFever/OrcaSlicer/releases/tag/nightly-builds

Try this one instead https://github.com/SoftFever/OrcaSlicer/pull/8256/checks

[TinyWorkshopDesign]

sure: Open Orcaslicer (latest nightly) Device->NoPrinter->Bind With access code insert-> ip+access code Connect insert-> serial
the printer doesn't appear
to make it work: Device->NoPrinter->Bind With access code insert-> ip+access code launch the script Connect insert-> serial

What OS are you using?

MacOS Sequoia 15.3 (24D60)

Btw, where did you download the nightly build from?

https://github.com/SoftFever/OrcaSlicer/releases/tag/nightly-builds

Try this one instead https://github.com/SoftFever/OrcaSlicer/pull/8256/checks

doesn't work after installing from the dmg and trying to launch it it gives me:

[Noisyfox]

sure: Open Orcaslicer (latest nightly) Device->NoPrinter->Bind With access code insert-> ip+access code Connect insert-> serial
the printer doesn't appear
to make it work: Device->NoPrinter->Bind With access code insert-> ip+access code launch the script Connect insert-> serial

What OS are you using?

MacOS Sequoia 15.3 (24D60)

Btw, where did you download the nightly build from?

https://github.com/SoftFever/OrcaSlicer/releases/tag/nightly-builds

Try this one instead https://github.com/SoftFever/OrcaSlicer/pull/8256/checks

doesn't work after installing from the dmg and trying to launch it it gives me:

https://github.com/SoftFever/OrcaSlicer?tab=readme-ov-file#how-to-install
See point 3 under mac.

[TinyWorkshopDesign]

sure: Open Orcaslicer (latest nightly) Device->NoPrinter->Bind With access code insert-> ip+access code Connect insert-> serial
the printer doesn't appear
to make it work: Device->NoPrinter->Bind With access code insert-> ip+access code launch the script Connect insert-> serial

What OS are you using?

MacOS Sequoia 15.3 (24D60)

Btw, where did you download the nightly build from?

https://github.com/SoftFever/OrcaSlicer/releases/tag/nightly-builds

Try this one instead https://github.com/SoftFever/OrcaSlicer/pull/8256/checks

doesn't work after installing from the dmg and trying to launch it it gives me:

https://github.com/SoftFever/OrcaSlicer?tab=readme-ov-file#how-to-install See point 3 under mac.

no, seem that the program is corrupterd ij some way, doesn't even appear in security

ARM version btw

[Noisyfox]

sure: Open Orcaslicer (latest nightly) Device->NoPrinter->Bind With access code insert-> ip+access code Connect insert-> serial
the printer doesn't appear
to make it work: Device->NoPrinter->Bind With access code insert-> ip+access code launch the script Connect insert-> serial

What OS are you using?

MacOS Sequoia 15.3 (24D60)

Btw, where did you download the nightly build from?

https://github.com/SoftFever/OrcaSlicer/releases/tag/nightly-builds

Try this one instead https://github.com/SoftFever/OrcaSlicer/pull/8256/checks

doesn't work after installing from the dmg and trying to launch it it gives me:

https://github.com/SoftFever/OrcaSlicer?tab=readme-ov-file#how-to-install See point 3 under mac.

no, seem that the program is corrupterd ij some way, doesn't even appear in security

ARM version btw

Then try the command line option.

[TinyWorkshopDesign]

sure: Open Orcaslicer (latest nightly) Device->NoPrinter->Bind With access code insert-> ip+access code Connect insert-> serial
the printer doesn't appear
to make it work: Device->NoPrinter->Bind With access code insert-> ip+access code launch the script Connect insert-> serial

What OS are you using?

MacOS Sequoia 15.3 (24D60)

Btw, where did you download the nightly build from?

https://github.com/SoftFever/OrcaSlicer/releases/tag/nightly-builds

Try this one instead https://github.com/SoftFever/OrcaSlicer/pull/8256/checks

doesn't work after installing from the dmg and trying to launch it it gives me:

https://github.com/SoftFever/OrcaSlicer?tab=readme-ov-file#how-to-install See point 3 under mac.

no, seem that the program is corrupterd ij some way, doesn't even appear in security
ARM version btw

Then try the command line option.

it will take some time, I need to DL xcode .... 😭

[Noisyfox]

sure: Open Orcaslicer (latest nightly) Device->NoPrinter->Bind With access code insert-> ip+access code Connect insert-> serial
the printer doesn't appear
to make it work: Device->NoPrinter->Bind With access code insert-> ip+access code launch the script Connect insert-> serial

What OS are you using?

MacOS Sequoia 15.3 (24D60)

Btw, where did you download the nightly build from?

https://github.com/SoftFever/OrcaSlicer/releases/tag/nightly-builds

Try this one instead https://github.com/SoftFever/OrcaSlicer/pull/8256/checks

doesn't work after installing from the dmg and trying to launch it it gives me:

https://github.com/SoftFever/OrcaSlicer?tab=readme-ov-file#how-to-install See point 3 under mac.

no, seem that the program is corrupterd ij some way, doesn't even appear in security
ARM version btw

Then try the command line option.

it will take some time, I need to DL xcode .... 😭

Wait, what? I don't think so. It should be macos' built-in command. Just run

xattr -dr com.apple.quarantine <path_to_OrcaSlicer.app>

in terminal.

[TinyWorkshopDesign]

xattr -dr com.apple.quarantine <path_to_OrcaSlicer.app>

zsh: parse error near `\n'

[recursiveGecko]

Quick test on A1 using OrcaSlicer_Linux_AppImage_PR-8256, printer added & connected fine, the camera feed loads. Added printer persists across slicer restarts as expected.

[Noisyfox]

xattr -dr com.apple.quarantine <path_to_OrcaSlicer.app>

zsh: parse error near `\n'

Then try this

1. Hold command key and right click OrcaSlicer.app, from the context menu choose Open.
2. A warning window will pop up, click Open

[Noisyfox]

Quick test on A1 using OrcaSlicer_Linux_AppImage_PR-8256, printer added & connected fine, the camera feed loads. Added printer persists across slicer restarts as expected.

Is the printer in a different subnet? Also did you have to go thought the manual setup process (enter printer name, serial number etc.) or not?

[recursiveGecko]

Is the printer in a different subnet? Also did you have to go thought the manual setup process (enter printer name, serial number etc.) or not?

Yes, my PC is on 10.0.0.0/24 and my printer is on 10.0.1.0/24.

When I first entered the IP & access code and clicked connect, it immediately reported "Failed to publish login request" (like it does in Bambu Studio), then I clicked "Manual setup", entered the other details, and it worked.

[Noisyfox]

Is the printer in a different subnet? Also did you have to go thought the manual setup process (enter printer name, serial number etc.) or not?

Yes, my PC is on 10.0.0.0/24 and my printer is on 10.0.1.0/24.

When I first entered the IP & access code and clicked connect, it immediately reported "Failed to publish login request" (like it does in Bambu Studio), then I clicked "Manual setup", entered the other details, and it worked.

Cool thanks for the test! So the automatic setup doesn't work properly so far... But good to know at least manual setup works.

I don't even get the same "Failed to publish login request" error with P1... God knows what Bambu did with their network plugin & firmware...

[Cartrigger]

Here with a A1, it automatically connected while switching to devices :D
All features are working as expected too.

(Windows)

[recursiveGecko]

I don't even get the same "Failed to publish login request" error with P1... God knows what Bambu did with their network plugin & firmware...

Does the P1 firmware listen on different ports, or does the network plugin try to connect to a different port when it's connecting to a P1?

On my A1, I previously observed the following:

When connecting to the printer through auto-discovery, Bambu Studio successfully connects to the printer on port 8883
When connecting to the printer by IP, Bambu Studio attempts to connect to the printer on port 3000 and receives a TCP reset, indicating that it's not connecting to the right port. This is reported as "Failed to publish login request" in BS.

[Noisyfox]

Does the P1 firmware listen on different ports, or does the network plugin try to connect to a different port when it's connecting to a P1?

It could be the case, though we can't really fix that since it fully closed source.

[Splarkszter]

Awesome! Thank you so much! This fixes it!!!

[joshajohnson]

Thanks for this PR, it fixes the forgetting of the pairing PIN on my Win 10 machine after sleep.