AMS Auto Refill interprets "No Color" as a distinct color for the purposes of switching spools during print

[re3dCharlotte]

Bambu Studio Version

1.10.1.50

Where is the application from?

Bambu Lab Official website

OS version

Windows 11

Additional system information

Intel(R) Xeon(R) E-2176M CPU @ 2.70GHz 2.71 GHz

Printer

Bambu Lab A1 with AMS Lite

How to reproduce

Using non-bambu filament on AMS, manually set AMS filament type to generic PLA for all AMS slots. Do not select a color. Have Auto Refill enabled. run a print where one spool on AMS runs out during print.

Actual results

The printer will automatically switch to a different spool on AMS lite during the print.

Expected results

Not selecting a color should not allow auto refill to work. ie: the default setting on AMS is no color, if the user has not set the color, the default behavior from a lack of information should not be to interpret 4 no color generic pla slots as the same color and therefore switch on runout. This was the issue I accidentally discovered today. I expected the printer to pause when it ran out of the spool and wait for a refill, but it instead auto refilled from an unintended slot.

i think there should be a coded exception to require a color to be input in order to allow for auto refill.

Project file & Debug log uploads

Articulated Gingerbread Dragon Fully Colored.zip

Checklist of files to include

• Log file
• Project file

[MartinChan3]

According to your description, this issue seems to be a feature rather than a bug.

[re3dCharlotte]

According to your description, this issue seems to be a feature rather than a bug.

I disagree because all documentation refers to AMS color switching requiring same brand and same color in order to switch, and therefore a user who had not input a color choice would not expect the colors to switch.

[gaolegao-lx]

Please upload log through Handy APP, and give us your ticket number

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Upload log files through Bambu Handy
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When uploading logs, you have the option to select a specific time frame, allowing you to reduce the volume of logs transmitted and shorten the upload duration.
To upload files, go to Me → Support Tickets → Choose the ticket for log upload and proceed with the operation.

[re3dCharlotte]

done. it's ticket number US241217628005