<https://lh5.googleusercontent.com/-Ca9zrIKxNGg/UJER6BujYHI/AAAAAAAAAA...> After 2 jams that after inspection did not appear jammed after rebuilding the head, I suspected the premium filament that I got from 2printbeta<http://2printbeta.de/>was the problem. After reading this<http://richrap.blogspot.ch/2012/06/jammed-frggn-nozzle-30doc-days-151...>I inspected the filament and found a bearing in my mine also. Of the other 2 rolls I received from them, the natural was ok, some issues with diameter, the glacier blue had even worse diameter problems (3.3mm) and broke a lot. I will be inpecting every millimeter of filamant in the future, what a hastle this has been.
After reading other posts, it's probably not a bearing, but it is the same type particle photographed in the posted blog. In case anybody else runs into a similar problem, I did not need to dismantle the entire head. I removed the 4 long head screws and after heating up the head to about 190, I pulled down the aluminum plate with the peak and heater block, leaving the bowden and teflon seat in place. Then alternated between pulling out filamant, put a thin copper wire up through the nozzle to push the blockage and then putting a short piece of PLA into the opening in the PEEK. To fish out the remaining PLA I mucked about inside the brass with a piece of ABS filament, the PLA stuck well without melting the ABS. A couple of times with this and the PLA would go through the nozzle as before.
On Wednesday, October 31, 2012 1:00:20 PM UTC+1, fluxline wrote:
> <https://lh5.googleusercontent.com/-Ca9zrIKxNGg/UJER6BujYHI/AAAAAAAAAA...> > After 2 jams that after inspection did not appear jammed after rebuilding > the head, I suspected the premium filament that I got from 2printbeta<http://2printbeta.de/>was the problem. After reading > this<http://richrap.blogspot.ch/2012/06/jammed-frggn-nozzle-30doc-days-151...>I inspected the filament and found a bearing in my mine also. Of the other > 2 rolls I received from them, the natural was ok, some issues with > diameter, the glacier blue had even worse diameter problems (3.3mm) and > broke a lot. I will be inpecting every millimeter of filamant in the > future, what a hastle this has been.
With the V2 hotend you can just heat up and use a nr10 wrench to screw out the nozzle. While it's still hot you could get the clog out quite easy I think.
Still, after seeing that, I would stay away from their filament...
On Wednesday, October 31, 2012 8:53:21 PM UTC+1, fluxline wrote:
> After reading other posts, it's probably not a bearing, but it is the same > type particle photographed in the posted blog. In case anybody else runs > into a similar problem, I did not need to dismantle the entire head. I > removed the 4 long head screws and after heating up the head to about 190, > I pulled down the aluminum plate with the peak and heater block, leaving > the bowden and teflon seat in place. Then alternated between pulling out > filamant, put a thin copper wire up through the nozzle to push the blockage > and then putting a short piece of PLA into the opening in the PEEK. To > fish out the remaining PLA I mucked about inside the brass with a piece of > ABS filament, the PLA stuck well without melting the ABS. A couple of > times with this and the PLA would go through the nozzle as before.
> On Wednesday, October 31, 2012 1:00:20 PM UTC+1, fluxline wrote:
>> <https://lh5.googleusercontent.com/-Ca9zrIKxNGg/UJER6BujYHI/AAAAAAAAAA...> >> After 2 jams that after inspection did not appear jammed after rebuilding >> the head, I suspected the premium filament that I got from 2printbeta<http://2printbeta.de/>was the problem. After reading >> this<http://richrap.blogspot.ch/2012/06/jammed-frggn-nozzle-30doc-days-151...>I inspected the filament and found a bearing in my mine also. Of the other >> 2 rolls I received from them, the natural was ok, some issues with >> diameter, the glacier blue had even worse diameter problems (3.3mm) and >> broke a lot. I will be inpecting every millimeter of filamant in the >> future, what a hastle this has been.
you're probably right, I just don't trust my ability to take that apart and put it back together without it leaking in the end. Kind of a half, 'if it's not broke, dont fix it'.
On Wednesday, October 31, 2012 1:00:20 PM UTC+1, fluxline wrote:
> <https://lh5.googleusercontent.com/-Ca9zrIKxNGg/UJER6BujYHI/AAAAAAAAAA...> > After 2 jams that after inspection did not appear jammed after rebuilding > the head, I suspected the premium filament that I got from 2printbeta<http://2printbeta.de/>was the problem. After reading > this<http://richrap.blogspot.ch/2012/06/jammed-frggn-nozzle-30doc-days-151...>I inspected the filament and found a bearing in my mine also. Of the other > 2 rolls I received from them, the natural was ok, some issues with > diameter, the glacier blue had even worse diameter problems (3.3mm) and > broke a lot. I will be inpecting every millimeter of filamant in the > future, what a hastle this has been.
Too bad to see something like this from 2printbeta. I thought they were a fairly solid supplier? This heated bed kit looks like it's perfect for the Ultimakers 210 x 210 build surface: http://www.2printbeta.de/product_info.php?products_id=155 Bummer. If they deliver untested/substandard filament, I don't think I want to plug in something like this from them either. Don't want to start a fire because someone wanted to save money...
I actually visited them to pick up the filamant as they are not far away, nice guys. They are printing parts for prusa and mendel machines then use them to create molds for casting the parts. I would say the color of their plastics is nicer than what I got from UM, but did not print as easily, always some issue from filamant breaking in the missle of a print, prone to grinding, and of course the contamination is a stopper. I did write them a mail but never heard anything back.
On Wednesday, October 31, 2012 10:02:22 PM UTC+1, Jensa wrote:
> Too bad to see something like this from 2printbeta. I thought they were a > fairly solid supplier? This heated bed kit looks like it's perfect for the > Ultimakers 210 x 210 build surface: > http://www.2printbeta.de/product_info.php?products_id=155 Bummer. If they > deliver untested/substandard filament, I don't think I want to plug in > something like this from them either. Don't want to start a fire because > someone wanted to save money...
On Wednesday, October 31, 2012 8:00:20 AM UTC-4, fluxline wrote:
> <https://lh5.googleusercontent.com/-Ca9zrIKxNGg/UJER6BujYHI/AAAAAAAAAA...> > After 2 jams that after inspection did not appear jammed after rebuilding > the head, I suspected the premium filament that I got from 2printbeta<http://2printbeta.de/>was the problem. After reading > this<http://richrap.blogspot.ch/2012/06/jammed-frggn-nozzle-30doc-days-151...>I inspected the filament and found a bearing in my mine also. Of the other > 2 rolls I received from them, the natural was ok, some issues with > diameter, the glacier blue had even worse diameter problems (3.3mm) and > broke a lot. I will be inpecting every millimeter of filamant in the > future, what a hastle this has been.
On Wed, Oct 31, 2012 at 8:34 PM, ddurant <dduran...@gmail.com> wrote:
> BEARINGS????
> I.. Uh.. What? Seriously??
> On Wednesday, October 31, 2012 8:00:20 AM UTC-4, fluxline wrote:
>> <https://lh5.googleusercontent.com/-Ca9zrIKxNGg/UJER6BujYHI/AAAAAAAAAA...>
>> After 2 jams that after inspection did not appear jammed after rebuilding
>> the head, I suspected the premium filament that I got from 2printbeta<http://2printbeta.de/>was the problem. After reading
>> this<http://richrap.blogspot.ch/2012/06/jammed-frggn-nozzle-30doc-days-151...>I inspected the filament and found a bearing in my mine also. Of the other
>> 2 rolls I received from them, the natural was ok, some issues with
>> diameter, the glacier blue had even worse diameter problems (3.3mm) and
>> broke a lot. I will be inpecting every millimeter of filamant in the
>> future, what a hastle this has been.
>> --
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well, 'bearings' is probably the wrong word, or the wrong translation. ball bearings are made from incredible hard steel, and it takes huge forces to deform them like that. it can be any kind of material, likely metal, mouse dropping or misc dirt, that took on a roundish shape while going through the auger of the extruder during production.
I wondered if it is just partially melted material with something cheaper than PLA they might be 'cutting' the product with, but with that I would expect to see more. But for sure, contamination with a 4mm nozzle as a random thing is frustrating. With the dry winter air coming and static possibly attracting dust, I think I will knock up some sort of brush or sponge to run the filament through before it goes into the feeder. Has anybody seen such an animal before and know if it causes other problems?
On Thursday, November 1, 2012 7:14:19 AM UTC+1, Joergen Geerds wrote:
> well, 'bearings' is probably the wrong word, or the wrong translation. > ball bearings are made from incredible hard steel, and it takes huge forces > to deform them like that. > it can be any kind of material, likely metal, mouse dropping or misc dirt, > that took on a roundish shape while going through the auger of the extruder > during production.
> I wondered if it is just partially melted material with something cheaper
> than PLA they might be 'cutting' the product with, but with that I would
> expect to see more. But for sure, contamination with a 4mm nozzle as a
> random thing is frustrating. With the dry winter air coming and static
> possibly attracting dust, I think I will knock up some sort of brush or
> sponge to run the filament through before it goes into the feeder. Has
> anybody seen such an animal before and know if it causes other problems?
> On Thursday, November 1, 2012 7:14:19 AM UTC+1, Joergen Geerds wrote:
> > well, 'bearings' is probably the wrong word, or the wrong translation.
> > ball bearings are made from incredible hard steel, and it takes huge forces
> > to deform them like that.
> > it can be any kind of material, likely metal, mouse dropping or misc dirt,
> > that took on a roundish shape while going through the auger of the extruder
> > during production.
Would it be possible to use these balls as a valve to shut off the nozzle?
Something like that would come in very handy for multi-material printing if
there is a way to get it out of the flow when not needed, with a magnet for
instance.
On Thu, Nov 1, 2012 at 10:15 AM, KodeMaestro <kodemaes...@gmail.com> wrote:
> How hard are these beads? Could they be a desiccant like silica-gel
> getting into the mix?
> On Nov 1, 9:10 am, fluxline <fluxl...@gmail.com> wrote:
> > I wondered if it is just partially melted material with something cheaper
> > than PLA they might be 'cutting' the product with, but with that I would
> > expect to see more. But for sure, contamination with a 4mm nozzle as a
> > random thing is frustrating. With the dry winter air coming and static
> > possibly attracting dust, I think I will knock up some sort of brush or
> > sponge to run the filament through before it goes into the feeder. Has
> > anybody seen such an animal before and know if it causes other problems?
> > On Thursday, November 1, 2012 7:14:19 AM UTC+1, Joergen Geerds wrote:
> > > well, 'bearings' is probably the wrong word, or the wrong translation.
> > > ball bearings are made from incredible hard steel, and it takes huge
> forces
> > > to deform them like that.
> > > it can be any kind of material, likely metal, mouse dropping or misc
> dirt,
> > > that took on a roundish shape while going through the auger of the
> extruder
> > > during production.
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On Wednesday, October 31, 2012 1:00:20 PM UTC+1, fluxline wrote:
> <https://lh5.googleusercontent.com/-Ca9zrIKxNGg/UJER6BujYHI/AAAAAAAAAA...> > After 2 jams that after inspection did not appear jammed after rebuilding > the head, I suspected the premium filament that I got from 2printbeta<http://2printbeta.de/>was the problem. After reading > this<http://richrap.blogspot.ch/2012/06/jammed-frggn-nozzle-30doc-days-151...>I inspected the filament and found a bearing in my mine also. Of the other > 2 rolls I received from them, the natural was ok, some issues with > diameter, the glacier blue had even worse diameter problems (3.3mm) and > broke a lot. I will be inpecting every millimeter of filamant in the > future, what a hastle this has been.
> On Wednesday, October 31, 2012 1:00:20 PM UTC+1, fluxline wrote:
>> <https://lh5.googleusercontent.com/-Ca9zrIKxNGg/UJER6BujYHI/AAAAAAAAAA...>
>> After 2 jams that after inspection did not appear jammed after rebuilding
>> the head, I suspected the premium filament that I got from 2printbeta<http://2printbeta.de/>was the problem. After reading
>> this<http://richrap.blogspot.ch/2012/06/jammed-frggn-nozzle-30doc-days-151...>I inspected the filament and found a bearing in my mine also. Of the other
>> 2 rolls I received from them, the natural was ok, some issues with
>> diameter, the glacier blue had even worse diameter problems (3.3mm) and
>> broke a lot. I will be inpecting every millimeter of filamant in the
>> future, what a hastle this has been.
>> --
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> Ultimaker operators:
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>> On Wednesday, October 31, 2012 1:00:20 PM UTC+1, fluxline wrote:
>>> <https://lh5.googleusercontent.com/-Ca9zrIKxNGg/UJER6BujYHI/AAAAAAAAAA...> >>> After 2 jams that after inspection did not appear jammed after >>> rebuilding the head, I suspected the premium filament that I got from >>> 2printbeta <http://2printbeta.de/> was the problem. After reading this<http://richrap.blogspot.ch/2012/06/jammed-frggn-nozzle-30doc-days-151...>I inspected the filament and found a bearing in my mine also. Of the other >>> 2 rolls I received from them, the natural was ok, some issues with >>> diameter, the glacier blue had even worse diameter problems (3.3mm) and >>> broke a lot. I will be inpecting every millimeter of filamant in the >>> future, what a hastle this has been.
>>> -- >> You received this message because you are subscribed to the Google Groups >> "Ultimaker" group.
>> There are also forums, which are the official gathering place for >> Ultimaker operators: >> http://forum.ultimaker.com/
>> If you still want to post to this group, send email to >> ulti...@googlegroups.com <javascript:> >> To unsubscribe from this group, send email to >> ultimaker+...@googlegroups.com <javascript:> >> For more options, visit this group at >> http://groups.google.com/group/ultimaker?hl=en
>>> <https://lh4.googleusercontent.com/-h_5JURCbl1w/UJJl1ZcYbEI/AAAAAAAAAA...> >>> A little more detail, with pictures. The are crushable, and seem to be >>> organic. My best guess is a seed of something, it looks to have a spot of >>> something on the top. Others might have other ideas.
>>> On Wednesday, October 31, 2012 1:00:20 PM UTC+1, fluxline wrote:
>>>> <https://lh5.googleusercontent.com/-Ca9zrIKxNGg/UJER6BujYHI/AAAAAAAAAA...> >>>> After 2 jams that after inspection did not appear jammed after >>>> rebuilding the head, I suspected the premium filament that I got from >>>> 2printbeta <http://2printbeta.de/> was the problem. After reading this<http://richrap.blogspot.ch/2012/06/jammed-frggn-nozzle-30doc-days-151...>I inspected the filament and found a bearing in my mine also. Of the other >>>> 2 rolls I received from them, the natural was ok, some issues with >>>> diameter, the glacier blue had even worse diameter problems (3.3mm) and >>>> broke a lot. I will be inpecting every millimeter of filamant in the >>>> future, what a hastle this has been.
>>>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Ultimaker" group.
>>> There are also forums, which are the official gathering place for >>> Ultimaker operators: >>> http://forum.ultimaker.com/
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Well if you want to know the anwer.... I'm a chemical (polymer chemistry) lecturer at a Practical University in the Netherlands. If you send me the item by mail I''ll try to analyse it. I have a broad range of analytical techniques available.
On Thursday, November 1, 2012 10:10:53 AM UTC+1, fluxline wrote:
> I wondered if it is just partially melted material with something cheaper > than PLA they might be 'cutting' the product with, but with that I would > expect to see more. But for sure, contamination with a 4mm nozzle as a > random thing is frustrating. With the dry winter air coming and static > possibly attracting dust, I think I will knock up some sort of brush or > sponge to run the filament through before it goes into the feeder. Has > anybody seen such an animal before and know if it causes other problems?
> On Thursday, November 1, 2012 7:14:19 AM UTC+1, Joergen Geerds wrote:
>> well, 'bearings' is probably the wrong word, or the wrong translation. >> ball bearings are made from incredible hard steel, and it takes huge forces >> to deform them like that. >> it can be any kind of material, likely metal, mouse dropping or misc >> dirt, that took on a roundish shape while going through the auger of the >> extruder during production.
Is the contamination attracted to a magnet? A rare earth magnet (disk drive magnet) might be strong enough to detect them with patience--even while embedded in the filament.
