I own a X1C and I am pretty happy with the performance of the printer. However, for several days now I am facing issues with the extruder.
I already searched the forum and different sources on reddit and the bambu wiki of course as well. Additionally I opened a ticked at bambu support and already received an answer.
Hotend it new
Filament is new (tried diferent PLA Basic, PLA Togh, PLA Silk, about 10 different spool- non older then 2 Weeks)
Extruder has been cleaned
PTFE tubes are clean
no clogging (tested hotend and extruder manually)
cutter not new but hardly any sign of usage
So what is the problem?- when I print multicolor or with support filament, the printer has to do filament changes.
first the printer cuts the filament
second the AMS retrievs the filament
and there is the problem. After cutting the filament, the AMS is able to retract the filament only so far, that it always and I mean always breaks within the sensor. So the is always a piece of filament within the sensor. However, the extruder wheels can not grab the small piece of filament within the sensor. So I always have to stop the printing process and open the extruder or I can manually feed filament and push the piece of filament through the sensor. This is of course not possible when the printing process is paused.
So what is happening. I assume, that the cutter is not completely cutting the filament. Therefore, when the ams is pulling the filament back, it drags the filament out of the nozzel and when the filament is outside the extruder, as a result of the jolt, the filament breaks. This would explain why all, and again I mean all broken pieces have exactly the same length and look like small candles.
When it broke today I open the extruder and removed just the big yellow toothwheel, and you can clearly see on the picture, that the flament which is stuck in the sensor, ist still connected throuch a thing fibre with the filament within the hotend.
Furthermore, on the breaking plane, at least I think, I can see, that one side looks smotth and cutt and the other side look torn.
What do you think?- Anyone facing similar problems?- Sor far I can hardly finish any printing job at all. It happens at no specific printing phase, tried different prints.
I have the feeling that it happens more often when I use PLA Tough, what underlines the cutter theorie. I has never happened with support PLA.
I already ordered exchange cutters.
Any input would be great and appreciated.
Reply from the support:
Try a different filament (could of course be the issue, but I tried multiple different types- even complete new one)
Sharpe bendings on the AMS tubes (as the AMS is able to retracked and push the filament through the tubes without any problem, it is no AMS issue- However, I printed one of those brackes which should avoid sharp bending at the tool head- which was a solution for some users facing the same error code- did not help)
Well my friend, I started having broken filament warnings in BOTH my x1CC’s a couple of days ago. (Barely used them during summer, first from Jan/Feb’ish and second a couple of months ago - yeah wish I had waited for the blackfriday sale - so not much mileage here. A mebbe 2,5k hrs - B mebbe 100 hrs m a y b e…)
I had double sets of spare parts, so I swapped E V E R Y T H I N G in BOTH!!!
(Complete nozzle, complete hardened steel extruder, first stage ams feeder, ptfe all the way so yeah literally every inch of tubing, cutter, wiper and even changed mods with fresh tight fit ptfe buttons, printerhead bend fix)
Did the entire service as per the famous youtube videos…
Then vacuumed them thoroughly while using amazon fresh brush-heads,
cleaned periferals with a toothbrush and canned air, wiped with quetips and isopropyl alcohol, wettexed every inch with ISO and a nice brush.
Yes I prolly have some sort of OCD, I do the maintenance service runthrough like clockwork every 4th week (not month but 4th week, even pinned down to Thursday night and forward due to wonderful trait of insomnia)
Both printers started the warning messages of broken filament, failed filament withdrawal from toolhead, broken filament and warnings that heatbed may cause nozzle clogs - IN BOTH FRIKKIN PRINTERS WITHIN HRS OF CRANKING THEM BEAUTYS BACK ON UP!!!
Also started having some additional issues after last update packages, I suddenly get a lot of clogs over the nozzles, bad wiping dragging poo up on prints.
The one persistant annoyance somehow worsened while at tit, you know how you try to squeeze the filament roll in to the AMS butt the first stage feeder literally sticks in to the center of the rolls making the filament hang up and stuck like solid to the edge of forementioned first stage feeders. The thing here is that the failure to feed/retract worsened by lightyears and the warning messages is all over the place, the motor overworked or whatever it says (migraine and covid with the fever and fun dims my not so bright bulb) so yeah…
I suddenly got your issue subscribed to warn every second minute.
And a lot more sensory flipouts…
Have cracked both x1’s & am-asses open and thoroughly cleaned them and changed for the internals I have. Put on the spare new nozzles on the day old nozzlebundles to see if that makes any kind of difference.
Here comes the highlights!!!
Also should point out - I have not put back a cracked roll of trouble - swapped for new ones in each and every spot! So excluded bad rolls since I had some crazy troubles earlier with 3Dfils electric blue petg - meaning that everything had been swapped out maybe 2 months ago so nothing was particularly old!
I will follow this and I will love to see what you skilled professionals and 3D printing gurus have on this one. Since I figure we cannot be the only ones whom suddenly got ebola in our X1CC’s?!?
May the force be with you mates!
/Silverbullit the Swedish Chupacabra (Locally known ass the sphinxter on legs)
Thank you for the reply. The belts are a part of the printer I haven`t thought about yet. However, this could maybe lead to a not correctly working cutter.
I will check whether we have a belt tension measuring device at work.
Shouldn`t the printer detect a loosen belt especially when in this case even the position of the tool my be influenced…?
You are of course correct. If the filament is brickle then it could break. So within the last few days I used many different filaments which I already used and worked just fine days ago and even complete new spools I just received from Bambu the other day (I only use the bambu filaments). What can I say- it happens on every filament except the support filament (and this is already several months old)
and as for a matter of fact the filament always and really always breaks at the exact same pistion within the filament sensor (not in a tube, not i the AMS, not in the extruder or in the hotend) I, but I have to admit I am not an expert on 3D printing, cannot believe that the filament is the issue.
However, as I really liek the X1c and I want my students to work on 3D printers, ordered a second one, which arrives tomorrow and I will use the filament which broek in the new printer- just to exclude the filament as the origin of the failure.
Hi, thank you for the detailed response on the issue.
I am aware that many usrs get the 0700-8003 error. However the solutions provided in diefferent forums, in the bambu wiki or on this plaform where never based on my described problem.
this was the reason why I opened this topic.
just like you I tried a lot of thinhs- echanged every single part I could (next week i will get a new extruder, cutter lever, cutter knives and tubes) and even disassemblied the AMS, the extruder and the cleaned everything. There was no filament, nor pieces of clogging no signs of any dirt or anything within the AMS or the Extruder.
And the filament does not break within the AMS or the tubes. I runs as smoothly as it can get through the pipes. And as the filament always breaks at the very same position- just within the filament sensor, I cannot believe that the filament, nor the AMS nor the extruder nor the tubes are the problem.
I also feeded the extruder manually to clean it and make sure the flow is smooth an constant. Everything just perfect.
Tomorrow I get a second X1C (I really like this printer and want to privde a 3D printing expirience for my students) and I will test the filament I used in the last printing processes.
I have to admit that at the very beginning when i got the printer several months ago I alsi faced this error number and problem. But in that case the problem was clogging. I used the 0.2 nozzle with PLA Silk (complete new filament) and the filament broke right beteween the hotend and the extruderwheels (so not in the sensor). So I opened the extruder removed the nozzle and cleaned everything and I was good to go again.
But this is a complete different situation.
I will keep you up to date (if the support contacts me again) and hope for further possible solutions of this problem.
I really do hope is a cutter issue and the new knives resolve the problem…
One, thing I am facing problem with bad wiping and draging poo on prints as well- it started about the same time as the problem with the filament.
But now, thinking about it- if the cutter does not work properly and the extruder pulls back filament which should actually remain in the nozzle and be purged when the new filament pushes it out- this would lead to the problem, that old filament will be pushed not from the cutting position but from within the wheels of the extruder und as a result the position where old and new filament touch eachother and are pushed through the nozzle lead to a different behaviour on the tip of the nozzle and the wiping can not be as clean…- just an idea…
but from what I read in your reply you have way more experience and knowledge regarding 3D printing…- I bought the X1C because in all reviews I found it was the most userfriendly
No I’m no Guru mate, came in with Zero experience when I got my first X1CC outta nowhere back in like Jan/Feb. The closest thing I had been to a 3D printer was the microwave. First Months my chubby labrador watched it intensely, in fact the printerhead was more interesting than the Kangaroos on Discovery channel altho still not as interesting as when I suck at COD MWII, so I had help getting started out 3D printing.
I wouldve gone nuts if I gotten one of them printers where everything has to be replaced modded tweaked and dispared so I took the quantum leap when Bambu X1CC was pubicly released. (Wanted some beta feedback and that shined brighter than the star that wiped out the dinosaurs)
So metoo wanted printers that worked and could be used and relied on. (Albeit some surprise stuff happens with firmware updates like one of them having EVERYTHING that had came out awesome was now Spaghetti monsters on acid, they had changed the default Wall Generator “Classic” to option “Spaghetti abortions” hmm maybe “Arachne or something but same difference”.
ALWAYS KEEP AN EYE ON WALL GENERATOR “CLASSIC” !!!
It is the only thing I learnt so far dude
Well that and when replacing the cutter, cranking up a small testprint, realizing in feverish covid migraine that you have TWO cutters in your hand - noticing the AMS did a random cold pull and retracted the entire filament thread in to the AMS and popped up a warning failure to retract filament from printer head…
hard power down, throw in knife, hard power up and good to go again - no apparant damage besides an incredibly clean nozzle - however EVERYTHING is swapped and maintained again after that feverstupidity…
Albeit the swiftest easiest coldpull on the planet - not recommended - but still spontaneous pull out clearing the nozzle and everything else without assistence… I wonder if BLabb even knows of this possibility - impressive
So thats what I know, chubbygirl kept tabs on the rest (the lab) but sadly she just checked out so I have to learn everything myself now
So
“Classic” wall generator
Blame everything on Firmware updates
If something happens USE ALL SPARE PARTS AND BOTH BJ AND VACUUM THE CREPE OUTTA THAT PANDORASS BO… WONDERFUL BOX
Make sure to keep the Lab dehydrated with Popcorn and a sixpack (OR learn to use the included camera)
Keep spare parts
Use goldy textured plate & gluestick and a wet wettex to instatweak
No shitbrands of filaments, â– â– â– â– in = â– â– â– â– out!
Do that monthly maintenance as per portraited in that YouTube video
Always keep up the pokerface!
Youre clearly a gdang genius mate!!! standing ovaries
We all like you more and more!!!
I’m a muppet so for the love of Godzilla movies dont listen and take anything I say to heart, with that Covid fever migraine disclaimer…
Your issues from the point of a Swedish muppet;
A/ Does your full filament roll hang stuck on the first stage feeder or does it truly move freely like a brainwashed uni student on genderversity? If NOT and it seems like it’s stuck up void of reality than that will give you a nice card collection of tarded warning massages ass in; Failure to retract filament, Stuck filament, Broken filament, Wrong filament, Unidentified filament, Wrong filament pronouns, Unable to cut filament asf etc and so on
2/ Pop the AMS and change PTFE tubes, especially on stage feeder ONE. Be carefull with the two connectors with too short cables (just google the YT video by the same mate in the below mean tennance video blow…
Notice, filaments will cut through the ptfe tubing and cause your error message or similar! Print the small button that has a 5mm ptfe guide and make sure your print FITS on the first stage feeder button (and not wobble around loosely)
THREE/ Get your trusty diamond sharpener and tweak that cutter, make sure to sharpen the cutter edge AGAINST the sharpeners grain.
/Fore!!! Cutter aint your problem, ask anyone shank carrying psycho in prison, it is your belt tension!!! That head bangs around stuff inside the printer randomly until it smacks that lever on the printerhead or cracks the glass lids, if youre belt tension is flaccid it will directly detour the torque that jams that shiv in the filament that did not pay interest on the smokes it borrowed! I mean it does not have power to cut filament despite having the sharpest cutter in the drawer if the belt is to flaccid or flatulent or whatever the technical term is in english lingo… you get the point mate! (Also sorry again, 39 fever covid migraine flatulence and g/f smacking me over my bald spot for sneaking outta bed…)
What you really need to pay attention too, butt I goose you already done this important step (This dude needs to get the Nobel price or an Darwin award or sumthin amazing for guiding dummies like yours truly)
FIBE/
AGAIN:; Take note of the belt tension mysteries - it affects how your bambu droid wields a knife and it will never assert world dominance if cant get high on plastic fumes and wield that knife like a viking on shroooms!!!
6/ Gdangit my g/f starts smakcing me over the head with the rolling pin, lemme grab a helmet
7/ Firmware rollback… my latest issues suspiciously started upon firmware update and in BOTH my X1CC’s and AM-Asses… suspicious indeed (Quickly google the picture of Fry from Futurama looking suspicious) If you have persistant issues I would no doubt try a rollback of firmware, ■■■■happens like Predator said (the Arnold SchwarZ predator obviously) like BLabb spontaneously changing Wall Generator from “Classic” to “Busghetti monster” without telling me or my fat labrador… lemme tell you that was a s-show and it upset my labrador A LOT!
Consider firmware rollback if you read all the way here and followed my noob advice over the bazillion intelligent forum members advices… cheezus I cannot believe you read all the way here impressed
Eight/ Still cannot believe you read all the way here!?! Yeah get a can of canned air, a toothbrush and an extension straw for the aircan (A Hugh Mungus-ly long straw) Keep the can upstraight and power down the printer and try to blow in to the printerhead yeallow feeder wheel, if you dont believe in static electricity/emp’s nor flat earth you can try it with power on and hit feed/unfeed printerhead while giving a BJ with the canned air (DONT tip the can since it will only squirt fluid crepe in the printerhead instead of “canned air”) And dont use an air compressor, to much air current and static electricity generated. Point being, my X1CC coughed out some foreign objects when given some epileptic canned air BJ’s. If you and your lab stays sharp you likely see some puny colorful fragment flop outta that extruder unit. You can blow in the other openings besides the yeallow wheel thingie (that was just to illustrate my blasphemous ideas) youll see some other small openings and at the next sched time you remove your extruder units do have a proper look and take note of where the gaps are so you can give it a professional BJ next time some little prick surprise stucks/lodges there uninvited. It worked more often than not for me, a GUM toothbrush while blowing that extruder is undoubtedly a multiplying gamechanger.
9/ Cheezus will this never end?!?
You know that theory deriving from Plato contending that nothing occurs unless observed?
Borrow a fat labrador, get a big bag of 1 dollar burgers from mcdonalds with extra cheese and no gdang onions (unless you own a ww1 mosquito gasmask), big bowl o fudge popcorn and a sixpack low alcohol Heineken and a dogpillow in front of the rowdy printer, do NOT, I repeat do NOT get it stronger beer. It WILL abandon watching the printer to keep it in check and try to climb up your leg/lap and get all huggy and lovy dovvy - so nothing stronger than light beer! (And no bud light for the love of everything unholy if you dont own a chastity belt with idiot proof combination lock. Next you see that lab with a dong glued to her chubby belly using pronouns Who?/Where? Just don’t do it!)
Rub it on the belly and point at the printer - it will get it from there!
10/ Everyone else on this forum has more knowledge and wast knowledge based on facts not made up by themselves, so theres always an option to shake them vigorously and see what knowledge drops down from the tree of wooden hea… great minds. Be sure not to shake the ugly tree tho cause I might drop down on your head!
11/ NOOOOOOO!!!
I mean, go through the mods on the usual suspect print pages. Stuff that straighten out your PTFE tubing, guide to printerhead, ptfe carriers, spacers for your filament rolls asf Check them comments or plain out Brave/Google your error massage with and without numbers in combo with fix/mod/.stl’s and other veneral deseases of these printers… The mod clan might have something right up your alley!
I gonna go and get a nice cup of S the F up now, sry for the length mates
Hope something in there might be of help, I dunno, you know that 100 monkeys writing on typewriters 100 yrs… theres theoretically the possibly an answer to your conundrum in the above ramblings if the monkey writer stat has any cred!
May the force be with you mates,
/Silverbullit - The Swedish Chupacabra (Locally known as the Chrysanteum on legs)
Puhh, thank you for your post- really appreciate the time and effort you put into your points. I have to admit, after reading all the points you pointed out, that there is a lot of information I haven`t thought about yet- still got a lot to learn
However, got my second printer, the new one today and shipped with it new cutters. (somehow I must have lost the replacement cutters of the first printer). Exchenged to cutter on the problem printer and, what do you know, everything runs as smooth as it can get. No broken fileament and even the problem with the wiping and the poo gone…
So in my case the 0700-8003 error was not linked to the AMS, the tubes, the extruder, hotend,sharp bending, clogging or sppols (I hope I didn`t miss anything) but the cutter.Somehow weird, that evene with a 3D printer, which is so fully packed with sensors and actuators that it is not possible to generate error messages which are more specific…- this is sure no critics on bambu- for me the X1c is just a great piece of a 3D printer packed with so much technology…
So thanks again for your support - really enjoyed reading through you essay
