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HEEEELP! Extruder not feeding properly & causing fussy top layer


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Posted · HEEEELP! Extruder not feeding properly & causing fussy top layer

I recently switched over to a new filament. It worked well for a few prints and im not sure if the new filament is the problem? Here is the problem im having:

10343540_10202311089082012_8386387955406955182_n_zps92215489.jpg

The order is set counter clockwise. Top right was the first time having the issue, and as you can see the problem is getting worse and now I can only go a few layer before it starts doing it.

Additional info:

Filament thickness: ( PLA Black )2.85-3.00mm

Temp: 224

 

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    Posted · HEEEELP! Extruder not feeding properly & causing fussy top layer

    If you have a highly variable filament diameter, then there's a good chance that in some places it is getting thick enough to get stuck in the Bowden tube, which can certainly cause massive under-extrusion like this.

     

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    Posted · HEEEELP! Extruder not feeding properly & causing fussy top layer

    If you have a highly variable filament diameter, then there's a good chance that in some places it is getting thick enough to get stuck in the Bowden tube, which can certainly cause massive under-extrusion like this.

     

    OK, would you consider .15mm a big variation?? I bought this off amazon, seemed like some people had good luck with it and some others dint. Where should I be buying filament from? Im tired of dealing with problems like this..

     

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    Posted · HEEEELP! Extruder not feeding properly & causing fussy top layer

    Would doing a 1.75mm conversion, and having access to better quality filament solve this? I just need to change over the Bowden tube correct? Or do I have to swap the head aswell?

     

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    Posted · HEEEELP! Extruder not feeding properly & causing fussy top layer

    I'm guessing you are in USA by your ip address. Please update your prefernces/location to specify a country. But assuming USA I recommend printbl.com although be warned that their filament spools won't fit on the back of the UM so you will need to build your own (out of wood or knex or something).

    printbl makes very good quality filament.

    Measure that filament EXACTLY. If it gets to 3.01mm then it won't work. As long as it stays at 3.00 and below you might be fine. Be aware that after going through the feeder it gets squished into an oval somewhat.

    Do you have a um original or um2?

     

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    Posted · HEEEELP! Extruder not feeding properly & causing fussy top layer

    I'm guessing you are in USA by your ip address. Please update your prefernces/location to specify a country. But assuming USA I recommend printbl.com although be warned that their filament spools won't fit on the back of the UM so you will need to build your own (out of wood or knex or something).

    printbl makes very good quality filament.

    Measure that filament EXACTLY. If it gets to 3.01mm then it won't work. As long as it stays at 3.00 and below you might be fine. Be aware that after going through the feeder it gets squished into an oval somewhat.

    Do you have a um original or um2?

     

    UPDATE: I swapped back to some filament I originally had from Proto Paradigm.. All the issues went away!!!

    Looks like im going to be returning this PLA I got from Amazon, and I just bought 2 new spools from PP. :mrgreen:

     

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