No, theyve completely rail roaded every decision. They sent me a buffer board without me approving it, i complained about wasting my own time dismantling something to replace a board and they eventually sent me a complete buffer(for the back of the p1s) That obviously did nothing so i demanded a new ams, they then said it was out of 30 day window from new even though i reported it within a few days of buying the combo! After much arguing i now have tracking for a replacement ams, of course we all know this wont work either!!!
Ridiculous. I think the same is happening to me. My initial complaint was lodged within the 30 day period so i should be entitled to a new AMS, its not my problem that they take 7 days to reply.
I’ve also lodged a complaint with my credit card company: hopefully that gains their attention.
This has to be a bad batch of AMS’s. I have kinda lost confidence in the product.
I’ve been having the same issue with it marring up the filament and not loading thru to the extruder. If I run from the external spool all is fine. I had to send support vides, logs, pictures and they sent me a new internal hub.
Replaced it, still damages the filament and pushed out the same error half the time so I’m back to the external spool. I add to the issues the dryer says it has no power. I have the Bambu power adapter, all is plugged in properly.
I told them I’ve spent enough of my time fixing a brand new machine and having machines down. They will not replace it or swap it so far. I’d be happy to have an AMS 1 at this point. I’ve got a ton of those and all work fine. Even swapped one on this machine to make sure it’s isolated to the AMS 2 Pro.
Support ticket is US250512076002 if anyone wants to reference it in their conversations. Getting pretty close to the credit card dispute level now if they won’t replace the defective AMS.
I got my H2d with AMS2 and got another do not, which was with what.
I had trouble a few days after having it. Then it was ok, and I started again a few weeks ago. I did open up the AMS to check if all cables were in (they asked me to do it), unplugging them and plugging them back in, and it was still the same. So I have said refund or exchange. But I was only today. See what happens.
I joined just to say this post from Ares0559 fixed my brand new AMS2 Pro. It worked for 2 prints and no heating cycles before it failed.
I removed the board from the motor, removed the two magnetic sensors, bent the legs and soldered them back into place with very close clearance to the magnet and I’ve been able to feed filament from the AMS for a print first go.
Thank you !
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I just got my replacement AMS 2 Pro today.
I cut off the rough ends of the filament spools and loaded the 4 in.
EXACT SAME nonsense loading again, the rollers are locked and it sits there tugging on the filament, damaging it and trying to pull the roll out of the slot!
Think its time for a refund on the whole thing. 2 months in and no closer to a solution. I’m running a job now, expecting it to fail to load on a colour change soon.
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Update from my case.
TLDR: I believe the issues many of us are facing are partly with the AMS 2 units but also the AMS Hub (the one that attaches to the back of the printer).
At least in my case, switching to AMS units of the old version has improved things a lot, but the issues still crop up sometimes due to the AMS Hubs I have (now waiting on replacements for the hubs)
I had 2 AMS 2 units that were showing the issue of multiple loading/unloading cycles and often the outright issue that the filament wouldn’t feed completely and I would have to hit “continue” or “retry” to hopefully continue the print.
Support sent replacements for the boards of both AMS 2 units but in the time they took to arrive, one AMS 2 unit developed another issue where Slot 1 would not turn the spool at all anymore. Sent them video of this and told them that I refused to even attempt the board swaps given that there are other issues cropping up as well and I demanded a refund.
While awaiting the response I couldn’t wait anymore, work is piling up not being able to print reliably, so I got 3 other AMS units of the old version.
They agreed to the refund (I’d imagine because there was more than one issue now) but because one of my AMS 2 units was a bundle with a P1S printer, I would have to return the printer as well. I need the printer so we settled on one AMS 2 unit refund and one replacement. Not exactly hopeful about the replacement, though.
Meanwhile, the old-version AMS units arrived and I set them up. Working fairly well, but soon, same issue. After a lot of testing it was obvious that the issue was much less frequent, but still present.
I then tested each unit individually through an AMS Buffer and 2 different AMS Hubs (bought at the same time as the AMS 2 units) each going through multiple prints with 40 filament changes each. The results?
AMS Buffer = Not a single issue for any AMS (old version) unit
AMS Hub = Each print had the issue at least twice
When first troubleshooting the AMS 2 units I also tested them with AMS Buffers and the issue was still there which is why I though the problem was exclusively with the AMS 2 units.
With these other results, however, it’s fairly clear to me now that at least my problems were not just the AMS 2 units but also the AMS Hubs as well.
For the time being switching to old -version AMS units has allowed me to print semi-reliably and I am currently awaiting replacements for the 2 AMS Hubs which hopefully will resolve the rest of the issues.
For clarification, im using a single ams 2 pro with a buffer, not hub on the back of my p1s
Yeah I believe that set up will show issues. When I first was troubleshooting my AMS 2 units I tested them with a Buffer and still had issues. There is clearly something wrong with the AMS 2 units.
But there is also something going on with AMS Hubs. Both together (what I had) just compounds the problem greatly.
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Wow. That’s crazy man. After all my troubleshooting from reading this entire thread, I’ve given up and finally submitted a ticket. Taking the AMS offline until we figure out a solution. My OG AMS 2, meanwhile, is chugging away with no issues.
Just wanted to update. I got a replacement entire AMS unit and it seems to have been able to make it through 6 prints so far with no issues. (The original worked about 2-3 days before failing)
I’ll update here in a week if it holds up (and sooner if it comes back.)
When you load filament do you get the issue where the rollers dont turn and it tries to pull the spool up?
Just to add to the list had mine less than a week and getting “filament can’t be delivered to the extruder “ errors.
Running a p1s with ams2 combo and a hub (not buffer)
Sent a email off too Bambu.
Sounds like a major design flaw somewhere!!!
Question: To those who have revieved replacements AMS’s; are they holding up?
I’ve been offered an AMS replacement, because i just out right requested it rather than going through the annmoying back and forth chat.
Apparently its quicker to provide components to repair the item than to provide a replacement. (i suggested it might be quicker to actually reply to requests in a timely manner rather than once a week)
Works while knocking on my wooden head. Hope it lasts a little longer. However, it’s only being used for 72-ish hours compared to the combo AMS 2 pro which died after 18 full days of work. Can tell in 15 days I guess 
My one still grinds in loading and tries to pull the spool out as the rollers are locked but so far havent had it not feed in the end. Still not right as its grinding the pla up, im sure itll fail to push through soon enough
Had my same apart today’s moved the magnet still
No better, getting spurious errors ranging from motor stall to no odometer signal. Spoke to live chat who said wait on ticket reply. For the best part of £1000 this is not good customer service. Will be contacting Paypal to reverse the payment if things don’t get sorted soon!
Got my AM2 and P1S last week, did a FW update out of the box and pretty much had the issue since day 1.
One thing I have just noticed is that if I hold the PTF tube going into the extruder as the filament is loading, its fine. Just confirmed it on 3 different filament swaps that were having issues. I can’t stand there during a 4hr print doing that though! Maybe I’ll try replacing the PTF tubing. Not sure what else to try…
I’ve been doing some extensive testing and I think that I’ve narrowed down my issue to the AMS external hub for the AMS’s. When either AMS 2 is connected to the hub, I would consistently get these errors on either AMS 2 and/or single or multiprint jobs. Over the weekend, I removed the AMS hub and went back to the single AMS 2 buffer. Have done 5 different multi-print jobs and both AMS 2’s with no issues. Will be plugging back in the AMS Hub again after more testing to prove the theory (at least for my case).
Whats your next plan of action!? Cos that isnt good. Im hopefully going to get a reply soon. As it stands, I’m still with a broken AMS2.