SoliForum - 3D Printing Community — Black Filament stops extruding

Re: Black Filament stops extruding

2014-12-10T21:02:56Z

wardjr wrote:

I use Octave Black all the time with no issues at the same temp as my other Octave colors.
SD Black on the other hand is a different story.... Brand matters

+1 I think you will be pleasantly surprised with the quality and reliability of Octave. AND it's cheaper than SD

Re: Black Filament stops extruding

2014-12-10T20:54:25Z

Thanks for the input -

- It's the SD brand - and I've seen that about the Octave - I may try it
- It stops coming out - I can see 'one' of the gears going but not the other one that is on the other side of the filament.
- The motor just keeps going - moving as if it is extruding.
- I don't think it's dirty as the filament before and after worked fine
- I tried adjusting the tension screw so much that I could see shards coming off and it wouldn't really go any tighter and I tried various tensions..
- I do not know the nozzle size it's the original one on the SD3 - we've had it a year or so.
- I'll try a little higher temperature.
- I read someone saying to put it in the oven for a bit to get rid of the moisture. It's sat with the other rolls, but perhaps it just got more moisture retention.
- I'll try the Octave brand I've seen where other people had issues with the SD

Thanks again

Re: Black Filament stops extruding

2014-12-10T20:21:40Z

I had this issue after switching from SD filament. It would feed for a while and then stop. You probably just don't have enough tension on the filament in the drive gear. Before I swapped the aluminum plate with the mk5, I solved this by shimming the spring. Not sure what it is but black seems to be kind of slippery in my experience so perhaps that is the cause.

Re: Black Filament stops extruding

2014-12-10T20:02:35Z

All of the above and moisture or dirty filament.
I use Octave Black all the time with no issues at the same temp as my other Octave colors.
SD Black on the other hand is a different story.... Brand matters

Re: Black Filament stops extruding

2014-12-10T19:56:13Z

Another thing that helps is a larger nozzle...are you running a 0.35 or a 0.4?

Re: Black Filament stops extruding

2014-12-10T19:43:07Z

When you say "stops extruding", do you mean it refuses to feed, or that the motor stops turning?

Some have found they needed to increase their temps a bit when using black. This could be the case. Also, have you measured the diameter of the different filaments? What brand filament?

Black Filament stops extruding

2014-12-10T19:30:55Z

We have the SD3 - we've gone through a whole roll of white SD Filament and never had an extrusion issue. We changed to SD black and consistently after about an hour or so into a print it stops extruding. Time and time again. Cleaned the little gears with the brush - would print fine for awhile and then stop extruding.

I've seen multiple posts of similar experiences with the black - and after it stops - I can stop the print job, push down on the filament into the head while pushing the extrude button and it soon will start extruding. Start the job again - fine for about an hour - same thing. Using a different 3D model - same thing - eventually the print head is moving like it's printing but nothing is coming out.

We switched to a different filament - an almost transparent white one and - printed just fine - first time - a 6 hour plus job. So, clearly something with the filament.

Any ideas on the issue with the black? I'll really need to use that color after my testing is done.