I've just removed the filament - it obviously left the section in the print-head, but it broke again as the m/c was withdrawing it, leaving a short 12cm section in the tube. I then tried bending some of the filament still on the drum. It was very varied - some bits bent almost double before breaking, and some bits snapped as soon as any bending force was applied. I guess the filament is faulty. Do you concur?
Dim3nsioneer 558
PLA becomes brittle in humid environment....
Threw away a complete spindle a couple months back for exactly the same issue... Also UM silver.
Threw away a complete spindle a couple months back for exactly the same issue... Also UM silver.
I've also run into this issue before. It's possible there was a bad batch of silver metallic or something similar. I had a couple spools lately that printed very gritty and in general extruded badly. The bearing you printed doesn't look to be gritty like the filament I saw, but could be related. Hopefully it was just one batch/a couple spools, and considering it got distributed to the entire world there are probably a few more unhappy users out there as well.
Yes, we're unhappy with ours. The silver filament, that came with the machine, has broken several times, as well. We've only had the UM2Ext for a little over a month.. Fortunately we ordered additional filaments along with the machine. We'll try one of them and see if we experience any breakage with it.
Hello all
Since august 15 I am also in possession of an Ultimaker Original +. The filament that was added in the box also breaks fast at the extruder drive position. Now already two days in a row, when I pick up the machine and place it somewhere else, the filament breaks. And it is quite a hassle to fix this , because the filament keeps breaking when handled. It is also silver colored like the ones mentioned in other posts.
I just got a bad roll of UM silver.
2days old and Broke in 2 different places in the bowden and snapped off in the feeder. As I was trying to get it out it kept breaking more.
I've only had this one time on brown filament. It broke in several places in the bowden tube when I moved it, and once when I left it for a while.
It's strange because that's the first time that's ever happened and it was one roll of filament only... so I think it's strictly filament QC related and nothing to do with the printer.
UM silver is the best quality IMO, I've never had that break. But maybe a bad batch is going around?
Yeah this silver prints really bad and is gritty as mentioned above
I had this happen with my UM Silver filament today as well. 16 hour print gone wrong... :(
It broke just before the feeder. Should I throw out the whole spool?
Before you throw away the whole spool, have you tried
Guglielmo
P.S.: The video is really horrible, so ... be patient. Many people have tried it and they say it works. I also read that, after a few days, the filament back to brittle, but, in any case, it is worth making an attempt
thinking of how many suppliers putting dry-packs into there filament boxes this method does come as a big surprise ....
I did noticed though that colorfabb stopped adding the dry-packs in the box ... I assume they know what there doing and its not just a saving for them....
thinking of how many suppliers putting dry-packs into there filament boxes this method does come as a big surprise ...
Totally agree with you, I always used the silica gel to keep the filaments well dry, so ... was really a surprise ...
Guglielmo
My UM brown filament also broke during a print last month. Well I just watched the tube and pushed the filament back to the section in front so as not to have a break in the job.
- 3 weeks later...
I am having the exact same issue, and I'm on my 6th returned spool from UM support, all bad so far. This is a summary of what everyone has been saying:
1. PLA off the roll seems fine, I can usually print long print jobs.
2. Every day the PLA breaks at the point it's entering the extruder and has a very brittle area around this.
3. Once the PLA is "straightened" for a while it become brittle and break easily.
here's a video showing my testing method and results.
SO far the batch numbers I have been sent that are "bad" are:
UM-7021b075 150508b04-11
UM-7021b075 150508b04-12
UM-7021b075 150508b04-6
UM-7021b075 150508b04-9
UM-7021b075 150508b04-317
UM-7021b075 150508b04-324
I have read before that UM changes sources for their PLA from time to time, I think they are buying from a new source that is sub-par with the quality we've all come to take for granted.
The bad stuff is shrink wrapped with a desiccant pack inside. I got some silver rolls from them early this year(2015) with that was not shrink wrapped, it's great.
-
4
Man you are really patient... I would not have made it to 6 attempts...
Man you are really patient... I would not have made it to 6 attempts...
Well it's two machines (same issue) so really it's only been 3 attempts. But today (on my 4th re-ship) I asked for a different color or brand of plastic and they said it has to be silver, but that a new batch is in and they are going to be sending me 2 new rolls of that. (so that 8 rolls I've sent back)
I'll keep you posted if the new batch looks better. At least I know how to test it and don't have to put it in my printer.
As frustrating as it is to have to keep sending it back I am getting great support from the US support partner fabrc8. LOVE those guys!!!!!
also I've got plenty of ColorFabb so I'm not at a printing stand still. :-)
I am having the exact same issue, and I'm on my 6th returned spool from UM support, all bad so far. This is a summary of what everyone has been saying:
1. PLA off the roll seems fine, I can usually print long print jobs.
2. Every day the PLA breaks at the point it's entering the extruder and has a very brittle area around this.
3. Once the PLA is "straightened" for a while it become brittle and break easily.
here's a video showing my testing method and results.
SO far the batch numbers I have been sent that are "bad" are:
UM-7021b075 150508b04-11
UM-7021b075 150508b04-12
UM-7021b075 150508b04-6
UM-7021b075 150508b04-9
UM-7021b075 150508b04-317
UM-7021b075 150508b04-324
I have read before that UM changes sources for their PLA from time to time, I think they are buying from a new source that is sub-par with the quality we've all come to take for granted.
The bad stuff is shrink wrapped with a desiccant pack inside. I got some silver rolls from them early this year(2015) with that was not shrink wrapped, it's great.
This is the same issue we have been having with filament on our new UM2. Mainly with Ultimaker white PLA filament (although did happen a couple of times with silver Ultimaker filament) the issue is exactly as you describe - off the roll/freshly reloaded it prints ok but leave it for a day or so and it fractures around the extruder (usually below) but is very brittle for an inch or two either side of it. I wondered if it was to do somehow with the aircon in the office but then we have never had a similar issue with the PLA filament on our other machine (Makerbot Replicator 2) although that is the thinner 1.75mm filament.
So UM support have confirmed it is 'bad' filament? The filament we have did come shrink-wrapped with desiccant pack inside, so sounds like the same stuff.
I assume that no-one is having the same issues with ColorFABB filament? If not I might have to start ordering CF filament rather than the UM stuff until this issue is resolved...
I have never seen this with ANY other brand, but I have only used ColorFabb, Faberdasry and Diamond Age.
I got my 4th batch of replacement spools today, same issue, so here's the part numbers I've seen so far:
UM-7021b075 150508b04-11
UM-7021b075 150508b04-12
UM-7021b075 150508b04-6
UM-7021b075 150508b04-9
UM-7021b075 150508b04-317
UM-7021b075 150508b04-324
UM-7021b075 150720a02-240
UM-7021b075 150720a02-254
here's what they look like:
So @Peetersm, have you received new reels of filament? And were they better?
Our sincere apologies for the inconvenience and the potential frustration of this bad batch of filaments!
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JohnK 30
Very interesting this came up now. I just started printing with a new roll of UM silver after going through another roll of it without problems. The new roll prints fine but I've had it break just below the feeder (below the last retraction after a finished print) after it was left on the printer overnight (not printing). This has happened two nights in a row. The lowest temperature in the room while the printer was left idle would have been around 16C. It almost looks as if the filament tried to return to a curved shape and snaps.
Then when removing the remaining filament from the bowden tube, I can snap it very easily without much force.
The stuff on the roll that hasn't passed through the printer, takes a little more force to snap, bends slightly, then snaps, whereas I've got some black UM PLA and I can almost fold it on to itself before it snaps.
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