Extruder making clicking noise and not extruding enough plastic
Posted by SkeptikRC
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Extruder making clicking noise and not extruding enough plastic September 02, 2015 11:47PM |
Registered: 8 years ago Posts: 22 |
I've recently put together a Geeetech Prusa I3B and its been running smoothly until now. I did two small prints today with no problems I started on my third and my extruder started making a clicking noise and only a small amount of plastic. When I push the filament into the hole it stops making the click sound and starts pushing plastic at a normal speed. I cut the plastic off the reel and left it hanging to see if that was a problem but it is still going. It just seems like the extruder is having trouble pushing enough plastic into the hot end.
What should I do?
Thanks.
What should I do?
Thanks.
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Re: Extruder making clicking noise and not extruding enough plastic September 03, 2015 01:36PM |
Registered: 13 years ago Posts: 632 |
Sounds a lot like a clogged nozzle. If you have PLA you can pull it out at about 80 C and pull most debris from the nozzle. Sometimes you have to do it multiple times and if the grit is stuck in tight you might need to stick a needle or something in from the front to loosen it first. Once you can see all the way through the nozzle you are good.
If it's not the nozzle then there are lots of possibilities. You are looking for sources of friction. What is your system like? Is it direct drive, geared, bowden? What diameter of filament and what type of plastic? What hot end?
If it's not the nozzle then there are lots of possibilities. You are looking for sources of friction. What is your system like? Is it direct drive, geared, bowden? What diameter of filament and what type of plastic? What hot end?
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Re: Extruder making clicking noise and not extruding enough plastic September 03, 2015 02:52PM |
Registered: 9 years ago Posts: 978 |
Also check the thickness of the filament. It can vary quite a bit, especially cheap filament (e.g. 1.95mm where it should be 1.75mm), so you might be trying to push too much volume of filament through the nozzle.
Also check the temperature of your extruder motor... if it's overheating (you can't hold your finger on it without pain), you'll need to turn the current down. If it's not overheating, you could try turning the current up to get more torque.
Also check the temperature of your extruder motor... if it's overheating (you can't hold your finger on it without pain), you'll need to turn the current down. If it's not overheating, you could try turning the current up to get more torque.
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Re: Extruder making clicking noise and not extruding enough plastic September 03, 2015 08:10PM |
Registered: 9 years ago Posts: 159 |
i've just been having a similar issue, with the click click click from the extruder teeth area, i slowed the prints 5mm/s a time till it hushed up. (i wasnt losing any extrution though.) i'll try the unclockit method next time.
full storry,
working fine untill long straight infill lines then click click untill the lines were shorter..hense i slowed stuff down a touch. (only getting about 65-75 mm/s though...direct drive with one toothed cog).
full storry,
working fine untill long straight infill lines then click click untill the lines were shorter..hense i slowed stuff down a touch. (only getting about 65-75 mm/s though...direct drive with one toothed cog).
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Re: Extruder making clicking noise and not extruding enough plastic September 04, 2015 02:52AM |
Registered: 10 years ago Posts: 14,672 |
Quote
munchit1
i've just been having a similar issue, with the click click click from the extruder teeth area, i slowed the prints 5mm/s a time till it hushed up. (i wasnt losing any extrution though.) i'll try the unclockit method next time.
full storry,
working fine untill long straight infill lines then click click untill the lines were shorter..hense i slowed stuff down a touch. (only getting about 65-75 mm/s though...direct drive with one toothed cog).
This is a common problem with non-geared extruders. To get them working well, choose a long (i.e. high torque) motor, with a rated current low enough so that your stepper driver chip can drive it at 80% of its rated current without overheating - but not so low that it needs too much voltage.
I prefer 3:1 geared extruders.
Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod
Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].
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Re: Extruder making clicking noise and not extruding enough plastic September 05, 2015 08:56AM |
Registered: 8 years ago Posts: 22 |
Thanks for the help everyone, I've been letting the printer run without fixing the clicking and I noticed it is only the first 5 or so vertical meters of the print that it happens. As it gets higher the clicking gets patchy until it stops and the plastic flows fine. I am using abs plastic. I remeber seeing something about releasing tension on the extruder, how do I do that? Another question, bryanandaimee how should I try and unclog the extruder if I'm using abs?
Thanks so much for the help!
Thanks so much for the help!
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Re: Extruder making clicking noise and not extruding enough plastic September 05, 2015 09:00PM |
Registered: 8 years ago Posts: 22 |
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Re: Extruder making clicking noise and not extruding enough plastic September 05, 2015 10:18PM |
Registered: 8 years ago Posts: 430 |
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Re: Extruder making clicking noise and not extruding enough plastic September 06, 2015 02:33AM |
Registered: 9 years ago Posts: 445 |
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Re: Extruder making clicking noise and not extruding enough plastic September 06, 2015 03:08AM |
Registered: 8 years ago Posts: 22 |
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Re: Extruder making clicking noise and not extruding enough plastic September 06, 2015 03:47AM |
Registered: 8 years ago Posts: 22 |
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Re: Extruder making clicking noise and not extruding enough plastic September 06, 2015 06:05AM |
Registered: 9 years ago Posts: 445 |
Quote
SkeptikRC
I'm not sure how to find the specifics but its the one attached to the geeetech mk8 extruder.Quote
Koenig
What is the motor rated for and much current are you feeding the stepper?
From the video its easy to see its skipping steps, what did you set vref on the drivers to and which drivers are you using?
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Re: Extruder making clicking noise and not extruding enough plastic September 06, 2015 04:46PM |
Registered: 8 years ago Posts: 22 |
Quote
Koenig
Quote
SkeptikRC
I'm not sure how to find the specifics but its the one attached to the geeetech mk8 extruder.Quote
Koenig
What is the motor rated for and much current are you feeding the stepper?
From the video its easy to see its skipping steps, what did you set vref on the drivers to and which drivers are you using?
I am printing from the SD card as I am having trouble getting my computer to connect to the printer, can I set the vref on the lcd panel?
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Re: Extruder making clicking noise and not extruding enough plastic September 07, 2015 12:57AM |
Registered: 8 years ago Posts: 22 |
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Re: Extruder making clicking noise and not extruding enough plastic September 09, 2015 10:06AM |
Registered: 9 years ago Posts: 49 |
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Re: Extruder making clicking noise and not extruding enough plastic September 21, 2015 03:27AM |
Registered: 12 years ago Posts: 45 |
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