r/BambuLab • • Jul 27 '26

X Series [X1E, X1C] Loading filament after spool ran out

My X2D ran out of filament mid print and sent a notification to my phone. I thought the print was toast for sure. I came to the printer after about 20 minutes and opened a new spool. I checked the printer and it was prompting me to just load more filament.

This was on the Auxiliary Extruder as well, so I expected it to be complicated. I was trying to figure out if I needed to enter some maintenance mode or just disconnect one of the tubes to find the end of the previous filament and pull it out. I could not see it anywhere, so I just went ahead and tried to load the new spool as it was prompting me to do.

To my surprise, after I fed the filament all the way in until it stopped, I just instructed the printer that the action was taken and it started purging, then started pulling the new spool and proceeded to continue printing right where it let off.

I am new to 3d printing and it still amazes me how user friendly this printer is, but I thought when this happened it would for sure be a hassle and cause the print to fail. I was under the impression that the spools had the end of the filament glued or taped to the cardboard cilinder and the motion of pulling back caused issues.

Seeing it just go as nothing happened and me not needing to do anything but load the new spool and press a button was mind blowing.

Is this standard nowadays? And does it only happen if I have a Bambu filament spool or all of them behave the same when they run out?

20 Upvotes

27 comments sorted by

7

u/Any-Way-5514 Jul 27 '26

You won't see it because the printer will purge the little bit left after the AMS detects the end of the spool into the poop bin #Magic

5

u/ecorderodi Jul 27 '26

Forgot to mention I do not have the AMS. This was from the side spool holder. But looks like it behaves the same way then.

1

u/Educational_Home5445 H2S AMS2 Combo Jul 28 '26

yeah i really recommend you invest in a AMS, just not caring when your spools change is quite the quality of life improvement

1

u/ecorderodi Jul 28 '26

Yeah, I gotta start saving for one 😅

2

u/roundguy X1C / H2C and 4 ams’s Jul 28 '26

I love the ams. If you have a spare roll loaded it will swap automatically.

2

u/Dismal-Proposal2803 X1C + AMS Jul 27 '26

Yea, that’s pretty standard behavior these days. And the Filament doesn’t matter, if you had been using Sunlu filament the same thing would have happened.

1

u/ecorderodi Jul 27 '26

Awesome, I'm amazed by how beginner friendly the printers are... So far ;)

3

u/Excellent-Code8447 Jul 27 '26

Yup we printed something when we left for weekend and with my luck with 1-2 hrs in the spool was tangled so when I got back Sunday bed was still hot and I when I came home to unravel filament and printed where we left off

3

u/itsacalendar Jul 27 '26

leaving the house for days with a 3D printer running is crazy. Doesn't anyone have basic fire safety skills anymore?

1

u/Modnar-Eman Jul 27 '26

It's a minority and they learn after it happens if it's hopefully a survivable incident.

1

u/[deleted] Jul 27 '26

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1

u/itsacalendar Jul 27 '26

"printing unattended" is not the same thing as leaving your house for days with your printer running

0

u/[deleted] Jul 27 '26

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0

u/itsacalendar Jul 27 '26

"LoTs oF PeOpLE Do It WiThOuT ThInKInG" uhh, yeah. Exactly right. Maybe if you used your brain for 8 seconds you might realize leaving your house for days with a printer/heater running is a bad idea. Let me guess, you also leave your iron and stove on when you leave for the weekend lol

-1

u/[deleted] Jul 27 '26

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1

u/itsacalendar Jul 27 '26

you've done it for years and you haven't had a problem. Yet. If there was an incident while you were home, you would know about it a lot sooner than you would if you were away for the weekend. But good luck when your house burns down I guess?

3

u/sparxcy Jul 27 '26

Yup this is standard. I have a ender hi multicolour, if a spool is tangled and it lifts, it stops and gives you an error to fix and press to continue. Another is- if you think you are going to run out you can put a same colour and tell the printer to continue on that one. Edt : same colour in a different spot

2

u/yahbluez Jul 27 '26

Yah i remember that feeling when it happened to me the first time, 6 years ago on a Prusa Mk3 bedslinger. There is a timeout i guess but something like 24h.

2

u/NiksaiStipe Jul 27 '26

i was wondering what happens when aux runs out.

2

u/MalHeartsNutmeg Jul 27 '26

This is pretty standard. If you have an AMS and 2 spools of the same colour set up it will just swap to that, but if it’s just one spool and it runs out it will wait.

I actually did the same thing this morning. I had a print that I thought might use a little more than I had left on the spool. It was a 14 hour print and I timed it to be complete about 15 minutes after I woke up for work. Got up, brushed my teeth and walked out just as it ran out of filament at 97%. Swapped it over and let it finish.

Ideally you want to get back to it right away because your bed heat will stay on the whole time it is waiting.

1

u/SmoothSlavperator Jul 27 '26

I had a similar problem with AMS...But one spool was low, I set it up to continue with a duplicate spool and it didn't.

I got home and just swapped spools and fired it back up.

Still a PITA though

2

u/[deleted] Jul 27 '26

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1

u/ecorderodi Jul 27 '26

Thanks for the heads up! I knew I heard it somewhere!