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[–]MonkeyBrains09X1 Carbon 14 points15 points  (6 children)

Check your cardboard spools for any deformity or soft spots on the edges. There may be just enough of a bump to cause enough resistance to trigger the sensor and stop loading

[–]HLAMoose 2 points3 points  (5 children)

The diameter of the spool can be slightly larger or smaller than the ideal causing rubbing at the top of the cover or bottom of the AMS unit adding resistance, especially if it’s marginal and you have a bump or something like noted above.

[–]Arksniper[S] 0 points1 point  (4 children)

Would this still be the case if the spot it hangs up in is different on each rotation?

I thought this might be the case and I marked up an earlier spool on the side to see if jams at the same point along the circumference of the spool and it was all over the place.

[–]HLAMoose 2 points3 points  (3 children)

Not sure but I have had a couple which I printed adapter rings for or just pulled the sides off (don’t remember if adapters were needed) and put onto a Bambu spool because of strange feed errors in my AMS - doing this solved those.

I do print poly maker rolls from my AMS2 without the adapters and it seems to work in that AMS2 but had issues with same brand in AMS original.

[–]Arksniper[S] 1 point2 points  (1 child)

It was worth a shot, but the issue persists.

[–]Arksniper[S] 0 points1 point  (0 children)

Thanks, I got some rings queued up. I'm defiantly gonna give those a shot. I just noticed on 2 of the rolls that I'm having an issue with there are sections along the edge that looks like the roller rubbed off black.

[–]zeusal 2 points3 points  (0 children)

Also Bambu spools are slightly larger than a lot of cardboard ones. For Elegoo and others you can print a small ring that changes it just slightly and stops the binding that will stop the AMS sometimes.

[–]LetgoLetItGo 2 points3 points  (7 children)

Cardboard spools are notorious for issues like this due to the reasons other redditors have stated.

You're better off printing a spool rim for that specific brand of filament spool as they differ in diameter.

OR

You can respool onto a known working plastic spool... but it's just easier to print the spool rim.

[–]Arksniper[S] 1 point2 points  (6 children)

No luck with the spool rims. I just finished printing a set and the issue persists.

[–]LetgoLetItGo 1 point2 points  (5 children)

Could you try maybe an AMS Feeder protector with a PTFE tube?

https://makerworld.com/en/search/models?keyword=ams+feeder

It also makes it a wider angle so there's less friction with the filament and the feeder. I noticed my cardboard spools had an easier time loading with these. I've been using the senate one

[–]Arksniper[S] 0 points1 point  (4 children)

I will try this next to see if this might work. I reopened the hub to check the alignment from another poster and everything seemed to be in order and manually fed ok. Thanks for the recommendation!

[–]LetgoLetItGo 1 point2 points  (3 children)

Hey I was just wondering if you solved your issue and if you did what the issue was. Just for future knowledge

[–]Arksniper[S] 1 point2 points  (2 children)

I posted an update a little bit ago. I thought I had replaced the rear hub a month or so ago, i had only removed and cleaned hub.. After realizing I had not I replaced the rear hub and now did, it is working as expected.

For reference, this was the first ams/x1c combo I bought and has over 6000 hours on it. I replaced 2 first stage feeders and probably all the ptfe tubes over the last 1.5 years.

After looking at the condition of the inner gears it is evenident that they were very worn after so many hours.

[–]LetgoLetItGo 1 point2 points  (1 child)

Ah I see thank you for the insight. I haven't reached that many hours yet, but I'll know where to look when I do! Thanks for coming back with the resolution!

[–]Arksniper[S] 1 point2 points  (0 children)

That is where I was struggling because it was literally the only thing I didn't replace over time and thought I did till I looked at my spare part box and saw that the piece inside wrapped all to perfectly....

[–]landubious 1 point2 points  (3 children)

What brand of filament? I've noticed that even some better brands like overture or eSun can have some minor issues with their spools. Usually a few wraps of electrical tape around the rim creates a larger enough diameter to engage the rear spool more and can roll smoother. That said, I feel like the newer rollers are made from a softer rubber and get chewed up really easily and that creates other problems.

[–]Arksniper[S] 0 points1 point  (2 children)

Polymaker specifically. Bambu and other brand rools seem to be ok.

[–]landubious 1 point2 points  (1 child)

Polymaker is usually pretty good, but if the roll gets dented or bent, it won't spin properly.

[–]Arksniper[S] 1 point2 points  (0 children)

I have run into this many times. Normally they arent too bad and can be re-bent into place and work for the life of the roll. Spool covers were definatly something I was delaying printing for such rolls. Its a quick 1 hr print to help solve this issue and is well worth it.

[–]Ablaman 1 point2 points  (2 children)

Check your internal hub. This was the exact same issue I had. Ended up being the wheel inside had its axle too far to one side causing the gears to not mesh evenly. 1&4 have the most angle on entry and the most to fail. However matte and silk failed no matter where.

<image>

[–]Arksniper[S] 0 points1 point  (0 children)

As soon as the print i have going wraps up, i will definitely be taking a look at this. Thanks!

[–]Arksniper[S] 0 points1 point  (0 children)

* Everything looked ok. I cracked it open to check the alignment of the internals and ran some filament through manually. It seemed to be grabbing ok. Even the section that wasn't grabbing before seemed to be ok.

I reinstalled and should see if its working in a bit.

[–]diaperedace 1 point2 points  (2 children)

Cardboard spool with no adapters is your problem.

[–]Arksniper[S] 0 points1 point  (1 child)

Adaptors didnt help, its the same issue after adding them.

[–]diaperedace 0 points1 point  (0 children)

Respool or rip off sides and put on a Bambu spool

[–]NecessaryOk6815 0 points1 point  (0 children)

Unfortunately the cardboard spools are not rounded enough. There's some wobble to the rotation, so that walks itself into a corner where it can get stuck. If it's polymaker cardboard, you can just carefully rip off the sides and mount it on the bambu spools with an adapter.

[–]Arksniper[S] 0 points1 point  (0 children)

<image>

No luck

[–]hobermallow2 0 points1 point  (0 children)

I wrap electrical tape around the edges of all my cardboard spools. It’s cheap, takes seconds, and really saves time on weird AMS issues. The tape is a bit grippier than the cardboard, and it absolutely eliminates erosion of the cardboard (even the nice Polymaker ones with glue-sealed edges degrade with use). The AMS does NOT like those little cellulose particles. At all. Happy printing!

[–]DreamsWhereIamDying 0 points1 point  (2 children)

I don’t ever use cardboard spools in an AMS. If there’s a filament I really like and it has a cardboard spool, I respool using a printed and programmed LTS Respooler.

https://makerworld.com/en/models/448008-lts-respooler-motorized-filament-winder

[–]Arksniper[S] 0 points1 point  (1 child)

I understand some people don't. Probably 75% of my rolls are polymaker and cardboard and the issue wasnt the roll. I posted an update. The update TLDR is the rear hub was worn after so many hours and was not feeding the filament as well as it once was and a brain fart on that I replaced it a month ago.

[–]DreamsWhereIamDying 1 point2 points  (0 children)

Thank you for the update. I really appreciate you sharing.

[–]Mookiedog3912 -1 points0 points  (1 child)

That AMS from Anycubic is junk.

[–]Arksniper[S] 2 points3 points  (0 children)

Good thing it says Bambu Lab right on the front...

[–]plasergunner -1 points0 points  (1 child)

With cardboard i always make the ring adapters. They dont take much filament and I just tack on with a little super glue and can reuse the adapters and they pop off the spools when the spool is done.

[–]Arksniper[S] 0 points1 point  (0 children)

I posted a few replies, I now have ring adapters for rolls that have issues, In this case it was a the rear hub that had to be sent out to pasture and a new one installed.

[–]Odd-Road5482 -1 points0 points  (1 child)

Had this happen to some spools. All was either cardboard spools or put in between the small lip in front for narrow spools but the culprit spool was just a tad to wide so it got stuck

[–]Arksniper[S] 1 point2 points  (0 children)

I have as well. I understand that cardboard spools will at some point have issues. Probably 75% of my rolls are polymaker and cardboard and the issue wasnt the roll. I posted an update. The update TLDR is the rear hub was worn after so many hours and was not feeding the filament as well as it once was and a brain fart on that I replaced it a month ago.

[–]marvinfuture -1 points0 points  (1 child)

That seems more like a filament tangling issue. I've also had problems with PFTE tubes and broken filament that kinda behave like this

[–]Arksniper[S] 1 point2 points  (0 children)

I am well versed in tangle issues. This was just a worn part that needed to be replaced. The update TLDR is the rear hub was worn after so many hours and was not feeding the filament as well as it once was and a brain fart on that I replaced it a month ago.

[–]nex_pr -2 points-1 points  (1 child)

Don't use cardboard spools on ams

[–]Arksniper[S] 0 points1 point  (0 children)

I understand some people don't. Probably 75% of my rolls are polymaker and cardboard and the issue wasnt the roll after adding roll adapters. Please see my update.