Non-RFID PLA loading

[user_3776709389]

Hello
I’m new to Bambu and this forum. Not sure if this is an AMS question or a Bambu Studio software question.

I have a P1S with an AMS Pro.
Using the supplied starter rolls of orange and green in the AMS i have successfully printed a few things.

There was little orange left (slot one) and some green (slot 2)

Since color didn’t matter for the application, I attempted to “tell” Bambu studio that both were the same filament so that it would automatically refill from when slot 1 ran out. Also I wanted to empty reel one asap since I needed the reel for other filament refill.

I removed the RFID tags from reel in Slot one (they were already accessible).

In bambu studio I thought I successfully told the software that both spools in Slot 1 and 2 were Bambu Basic PLA - green.

I obviously did something wrong, since at the end of spool 1 (orange) the print stopped with an error asking me to load same material type in same slot.

After moving the green spool to slot 1 to clear the error and resume the task, Bambu Studio gave me the second error about being unable to feed the filament.

Following instructions, the PTFE tube was clear and connected. I even tried unplugging the power to the AMS, but the green would not load in slot 1. Software was unresponsive.

I almost gave up.
Pressing the start button on the physical machine got things going and to my relief, the print resumed and completed!

Can someone please point me to the proper procedure for having done this.
I imagine needing to do this again in the future to avoid wasting short segments of PLA, or if/when buying non-Bambu material.

Web searches have provided a mountain of irrelevant instructions.

Thank you
(And yay for my first post!)

[Alex_vG]

Welcome to the forum

In the AMS options, did you enable the “AMS filament backup”? That is the key to automatically continue printing from a different slot

In the same place, you can choose when the AMS should read the RFID tags. I think you can turn them all off so that it completely ignores them. Maybe that would have helped? At least you don’t need to rip the tag before the spool is empty.

Apart from that, I think I would have tried exactly the same steps. The second error looks more like a bug in this special situation to me.

[user_3776709389]

Thank you for the reply
I had auto-refill toggled on.
I don’t see a filament backup or RFID options.
I must be missing something obvious in the Bambu Studio software?
Here’s a screenshot of what i see.
Where are these options located?

Also, i have since turned everything on/off and restarted software and it is still confused about slot 1 calling it “unknown filament” even though it is loaded (and printing with) Bambu PLA basic with RFID intact on the spool.

Thanks again

[Alex_vG]

I still have the the old BambuStudio and mainly use the controls on the X1C.
auto refill is the right setting. it is called filament backup on the machine.

For the other options: they should be behind the small screwnut button on the right of auto-refill.

[user_3776709389]

Thank you
Is that it?

So next time i have a spool with no RFID, I uncheck “insertion update”?
Leave “filament backup” checked
And how do I convince Bambu Studio that slots 1 and 2 have the same filament type and color, so that it performs the auto-refill?
I think this is where i went wrong the first time.

[Alex_vG]

Ah, meant when you have a spool with a different filament that you want as backup, then you can disable the check and set the type manually.

As you had auto refill on, I don’t understand why it didn’t work the way you tried. To me it looks like a quirk of the software. Especially as it worked after you restarted with the button.

[user_3776709389]

Thank you for that.
I don’t understand why it didn’t work either, obviously i didn’t have a correct setting somewhere
I hope someone else who may have experienced this can chime in here as well.
I am reluctant to try the same thing expecting a different outcome.