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[GH-ISSUE #880] [Bug]: Spool Manager Deducts Double the Filament Used After Print Completion #602

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opened 2026-05-07 00:12:00 +02:00 by BreizhHardware · 6 comments

BreizhHardware commented

2026-05-07 00:12:00 +02:00

Owner

Originally created by @Minebuddy on GitHub (Apr 3, 2026).
Original GitHub issue: https://github.com/maziggy/bambuddy/issues/880

Originally assigned to: @maziggy on GitHub.

Bug Description

There is a bug where the spool manager deducts double the amount of filament after a print is completed.

For example, if I print something that uses 20 grams and I have 800 grams left on the spool before the print, the built-in spool manager shows only 760 grams remaining afterward. It appears to subtract twice the amount used instead of the correct amount.

I am using Bambu Lab filament, so everything is detected automatically, which is really nice. However, because it deducts twice the amount, the remaining filament numbers become inaccurate. It is not a major issue for me right now, but it will become a problem over time, especially when I am working with more than four colors.

Expected Behavior

The built-in spool manager should subtract only the actual amount of filament used during the print.

For example, if a print uses 20 grams of filament and the spool has 800 grams remaining before the print, the spool manager should show 780 grams left after the print is completed.

Steps to Reproduce

Printer Model

P2S

Bambuddy Version

v0.2.2.2

Printer Firmware Version

01.01.03.00

Installation Method

Docker

Operating System

Linux (Ubuntu/Debian)

Relevant Logs / Support Package

No response

Screenshots

No response

Additional Context

No response

Checklist

I have searched existing issues to ensure this bug hasn't already been reported
I am using the latest version of Bambuddy
My printer is set to LAN Only mode
My printer has Developer Mode enabled

Originally created by @Minebuddy on GitHub (Apr 3, 2026). Original GitHub issue: https://github.com/maziggy/bambuddy/issues/880 Originally assigned to: @maziggy on GitHub. ### Bug Description There is a bug where the spool manager deducts double the amount of filament after a print is completed. For example, if I print something that uses 20 grams and I have 800 grams left on the spool before the print, the built-in spool manager shows only 760 grams remaining afterward. It appears to subtract twice the amount used instead of the correct amount. I am using Bambu Lab filament, so everything is detected automatically, which is really nice. However, because it deducts twice the amount, the remaining filament numbers become inaccurate. It is not a major issue for me right now, but it will become a problem over time, especially when I am working with more than four colors. ### Expected Behavior The built-in spool manager should subtract only the actual amount of filament used during the print. For example, if a print uses 20 grams of filament and the spool has 800 grams remaining before the print, the spool manager should show 780 grams left after the print is completed. ### Steps to Reproduce * ### Printer Model P2S ### Bambuddy Version v0.2.2.2 ### Printer Firmware Version 01.01.03.00 ### Installation Method Docker ### Operating System Linux (Ubuntu/Debian) ### Relevant Logs / Support Package _No response_ ### Screenshots _No response_ ### Additional Context _No response_ ### Checklist - [x] I have searched existing issues to ensure this bug hasn't already been reported - [x] I am using the latest version of Bambuddy - [x] My printer is set to LAN Only mode - [x] My printer has Developer Mode enabled

BreizhHardware

2026-05-07 00:12:00 +02:00

closed this issue
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BreizhHardware commented

2026-05-07 00:12:01 +02:00

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@maziggy commented on GitHub (Apr 4, 2026):

Please upload a support package -> https://wiki.bambuddy.cool/features/system-info/?h=debug#enable-debug-logging

@maziggy commented on GitHub (Apr 4, 2026): Please upload a support package -> https://wiki.bambuddy.cool/features/system-info/?h=debug#enable-debug-logging

BreizhHardware commented

2026-05-07 00:12:01 +02:00

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@Minebuddy commented on GitHub (Apr 4, 2026):

here you go
bambuddy-support-20260404-115441.zip

@Minebuddy commented on GitHub (Apr 4, 2026): here you go [bambuddy-support-20260404-115441.zip](https://github.com/user-attachments/files/26479773/bambuddy-support-20260404-115441.zip)

BreizhHardware commented

2026-05-07 00:12:01 +02:00

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Owner

@maziggy commented on GitHub (Apr 4, 2026):

Available/Fixed in branch dev and available with the next release or daily build. Please let me know if it works for you now.

If you find Bambuddy useful, please consider giving it a ⭐ on GitHub — it helps others discover the project!

@maziggy commented on GitHub (Apr 4, 2026): Available/Fixed in branch dev and available with the next release or daily build. Please let me know if it works for you now. ----- If you find Bambuddy useful, please consider giving it a ⭐ on [GitHub](https://github.com/maziggy/bambuddy) — it helps others discover the project!

BreizhHardware commented

2026-05-07 00:12:01 +02:00

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Owner

@Minebuddy commented on GitHub (Apr 6, 2026):

i will check it out with the new beta build have no way to get a daily or dev build on make use of potainer.io

@Minebuddy commented on GitHub (Apr 6, 2026): i will check it out with the new beta build have no way to get a daily or dev build on make use of potainer.io

BreizhHardware commented

2026-05-07 00:12:01 +02:00

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@maziggy commented on GitHub (Apr 7, 2026):

docker pull ghcr.io/maziggy/bambuddy:daily

@maziggy commented on GitHub (Apr 7, 2026): docker pull ghcr.io/maziggy/bambuddy:daily

BreizhHardware commented

2026-05-07 00:12:01 +02:00

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Owner

@Minebuddy commented on GitHub (Apr 11, 2026):