I have printed triple silk (Sovol) via the AMS, no issues, but I’ve ever used dual.
Same issue with Bambu dual-colour neon city silk.
Tried 3-4 prints now and they all failed either with air printing, or a temporary clog means it misses a layer and then subsequent layers extrude into spaghetti.
I’ve tried with AMS and also external spool which is slightly better, but still has issues.
Anyone had success with returning a spool and getting a refund?
My a1 mini had a terrible time with all silk filament. I printed one of these out of ABS and the difference was amazing!
1 Like
They sent me replacements. Just ask them.
yeah I contacted them and got a replacement (I went with regular PLA).
It’s a shame as it looks really cool, but I’d say about 70% of prints fail, but at least the 30% that succeed are effectively free now.
I have printed with dual and even triple color silk from other brands but nothing I try will get the Bambu dual silk to work with my A1. It worked when I had a friend try it in his X1C but no way will it work in the A1. Either the finish is too smooth or hard for the A1 extruder to grab or, as several others have suggested, it is oval shaped in cross section to such a degree that it will not feed on an A1.
Having never used Bambu Silk and only other brand silk materials, I can confirm I have never had a silk printing issue on my A1 or A1 mini.
This appears to be a Bambu Silk specific issue.
It’s a Bambu Labs dual colour silk specific issue.
In my support ticket Bambu Lab said the oval shape is by design to stop the filament rotating and ensure the colours appear consistent from layer to layer. When it works it’s actually really clever as the orientation of the printed line in XY decides what colour the visible part of the line is.
e.g I printed this pyramid and each face was a different colour with nice crisp transitions on the edge of each side.
I guess the A1 extruder (and definitely the AMS lite) can’t handle the slight variation in filament dimensions. Bambu Labs told me the neon city dual silk may be a bad batch that is slightly outside of the tolerances and therefore not to order another spool of the same .
My single, dual, and triple colour silk filaments all have a round profile.
I have never seen a non-round profile in the wild.
Yeah the A1 extruders are single gear extruders - only grip the filament on one side and is more prone to slipping with smaller filaments. Same with the AMS feeders. The P1 and X1 have double gear extruders. Other factors could play a role but I think this is the key difference. Anyways I’ll just print my “free” neon city dual silk on my P1 printers (or my Ender?), without using the AMS.
I happy that you liked: D
You are the best man!! I made account just to reply, I had same issue with dual colour silk pla from bambu and your solution with that modified lever solved everything, now it works like a beast with AMS lite on default settings for silk pla. Thanks ! If anyone has similar issues I suggest to print and replace that part, it took 23 minutes to print with basic pla and it literally solves everything!
2 Likes
This solved silk pla extrude issue to me
I was having trouble printing with silk PLA from two different brands: bambu silk and also esun silk. In both cases the filament would not extrude at all unless I was pushing it by force through the ptfe tube from the ams which of course caused uneven extrusions on build plate in globs, the extruder gear was just not grabbing the filament because it was too slippery. I found this mod and printed it out of basic pla, took under an hour to take apart the hot end and install it, and all my silk PLAs have printed flawlessly ever since, no problems at all, thank you so much for sharing this! I would recommend it to anyone having problems printing silk with the ams and bambu lab a1
1 Like
My experience with AMS-Lite and Silks (and a “solution” working silk filament)
I’ve also been scratching my head, having issues with Geetech silk filaments, when using the AMS-Lite, it does feed, works normal, but after a while i see some filament “fuzz” start to gather below and in the feeder on the ams-lite, some falling out, some sticking to the metal cog inside the feeder. After the fuzz starts to accumulate, the stuck spool warning appears (which causes problems later on for all filaments, if the cog isn’t cleaned. had to take apart the feeder to get it all out). I also saw the AMS HUB got pushed down, triggering the stuck spool. When trying to pull or push the filament, nothing is holding it to be “stuck”, no resistance, spool and filament is free to move.
The fuzz is showing me there’s significant friction and grinding of the filament in the feeder.
Shouldn’t feeder help push the filament in, instead of holding it back?
also, if the external spool doesn’t need “feeder help pushing”, meaning the extruder is strong enough to pull the filament, why does AMS-lite need the feeder? TPFE tubes are more or less the same length. after the initial feed into the extruder, I don’t think AMS-Lite needs to do anything after that.
Luckily, I mainly use AzureFilm filaments manufactured here localy and so far I have NOT had a single proble using their SILK filaments with the AMS-Lite. no stuck spools, clogs or any fuzz accumulation at the ams-lite feeder cogs. Can’t tell what’s different about the Azure silk filament, but it works great, no errors or failed prints.
1 Like
This may come as a light reply I have experienced multiple issues with silk material it is the material not the machine if it’s not extruding or not coming through the lines on the AMS all this is related to the material and there are ways to force feed it i’m experienced highly i have a bar clamp on my A1 Mini, so that it will run silk cheaper silk cheaper silk material is actually bigger than 1.75 there’s no exact figure for that because it’s vague but it’s just enough to cause resistance in the machine i don’t know how to fix it on the X1 carbon yet. I’m still working on that but if you use the A1 or the A1 mini, Put the silk on the back roll give it some slack and the button on the AMS where you push it to let the material slide in without damaging your machine, clamp that that will eliminate the resistance and allow the machine to pull the material in freely if it doesn’t have lag and line it will keep kicking out codes you continue to fix and replace all that other stuff, all you want, but that’s not the problem. You’re wasting your time and your money just trying to help this is all in my opinion and my experience thank you
is there any thing in the ptfe tube does the ptfe tube ends has a bend in