Prusa i3 intermittent extrusion
Posted by Pelle13
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Prusa i3 intermittent extrusion October 21, 2016 07:16PM |
Hi, I'm new to the forum and in the world of 3D printers. First of all sorry for my bad English.
I just set up a Prusa i3 and is perfectly calibrated, the problem comes when printing for a few seconds and then stops printing materials extrude and again start printing...
Here you have a picture of the result. I've tried changing the settings, bed and extruser temperatura, the nozzle diameter (less diameter to extrude more filament), manually modify the current with potentiometer pololu, reduce all print speeds ... I can only set so that the amount of filament is greater but I do not know how. Any solution? Thank you.
I just set up a Prusa i3 and is perfectly calibrated, the problem comes when printing for a few seconds and then stops printing materials extrude and again start printing...
Here you have a picture of the result. I've tried changing the settings, bed and extruser temperatura, the nozzle diameter (less diameter to extrude more filament), manually modify the current with potentiometer pololu, reduce all print speeds ... I can only set so that the amount of filament is greater but I do not know how. Any solution? Thank you.
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Re: Prusa i3 intermittent extrusion October 21, 2016 07:25PM |
What size nozzle are you using?
Out of the box thinking is easier when you never fitted in the box to begin with.
Out of the box thinking is easier when you never fitted in the box to begin with.
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Re: Prusa i3 intermittent extrusion October 21, 2016 07:37PM |
What temps are you using?
Out of the box thinking is easier when you never fitted in the box to begin with.
Out of the box thinking is easier when you never fitted in the box to begin with.
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Re: Prusa i3 intermittent extrusion October 21, 2016 07:40PM |
Most PLA should print well between 180c and 220c.
Do you have your fans on while printing?
Out of the box thinking is easier when you never fitted in the box to begin with.
Do you have your fans on while printing?
Out of the box thinking is easier when you never fitted in the box to begin with.
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Re: Prusa i3 intermittent extrusion October 22, 2016 02:02AM |
What extruder system are you using?
Out of the box thinking is easier when you never fitted in the box to begin with.
Out of the box thinking is easier when you never fitted in the box to begin with.
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Re: Prusa i3 intermittent extrusion October 22, 2016 08:10AM |
Is it direct drive, Bowden, wades?
Are you getting any unusual marks on your filament like stripping or anything.
Out of the box thinking is easier when you never fitted in the box to begin with.
Are you getting any unusual marks on your filament like stripping or anything.
Out of the box thinking is easier when you never fitted in the box to begin with.
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Re: Prusa i3 intermittent extrusion October 22, 2016 08:20AM |
I have news!
I don't know what you mean with direct drive, Bowden or waves... But the filament is perfectly smooth.
I tried to print a 20x20x20 cube and this the result is awesome:
TOP:
BOTTOM:
The bottom and the top isn`t acceptable but the body is perfect!
This is with 0.2 layer height, when I put 0.4 layer height (to get faster printing) It's again a disaster... ¿Any solutions?
I don't know what you mean with direct drive, Bowden or waves... But the filament is perfectly smooth.
I tried to print a 20x20x20 cube and this the result is awesome:
TOP:
BOTTOM:
The bottom and the top isn`t acceptable but the body is perfect!
This is with 0.2 layer height, when I put 0.4 layer height (to get faster printing) It's again a disaster... ¿Any solutions?
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Re: Prusa i3 intermittent extrusion October 22, 2016 08:50AM |
Bad news... Anything else I print with 0.2 layer height still being a disaster...
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Re: Prusa i3 intermittent extrusion February 20, 2017 03:51AM |
Quote
ethicalfive
Geeetech uses the cheapest, crappiest plastic extruder head. Just take a look at the geeetech forum complaints about under extrusion.
If its the mk8 plastic extruder head check the tension of the arm, if the spring is weak, add shimies to compress it more. If its the heavy duty spring, dissassemble the extruder head and examine for cracks. Mine came with a heavy duty spring which had put so much force on the idler wheel it had cracked the part holding the axle. The part was hidden between the stepper and the tension arm so i didnt diagnose it for a long time. Ive removed some of the plastic which sets the gap to give enough tension even with the cracked part while i wait for a new metal extruder head.
This problem really sucks because there are so many legitimate problems which can cause your problem you can spend forever following those without realising the product is faulty by default.
I bought one of this and still happening but less...
Edited 1 time(s). Last edit at 02/20/2017 03:52AM by Pelle13.
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Re: Prusa i3 intermittent extrusion May 13, 2017 02:40AM |
Quote
Pelle13
Bad news... Anything else I print with 0.2 layer height still being a disaster...
That's happened because your nozzle height, that's why the cube has a bad first layer, use hairspray and first layer print with no fan bed at 60 then drop bed temp after 2-3 layers to 50,turn layer fan on 2nd layer.its critical you get your nozzle distance correct as the above picture looks to me there is flow but not sticking to the bed and it just moves the plastic around the build space,
Check my rubbish blog for my prusa i3
up and running
[3dimetech.blogspot.co.uk]
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