ABS surface problem

[franckcorduant 0]

Hello everyone,

 

I have some trouble with my ultimaker 2+. Since one month I'm not able to print my different ABS.

 

I have changed anything special. From the apparition on the problem I :

- calibrate the buidlplate

- clean the buse

- try different ABS

- change the temperature

- change % of the material flow

 

I have always the same result.

If I augment the % of material flow from 10% to 170 % it's a bit better but very far from the result I have before.

 

Any ideas ?

 

Thanks a lot.

 

PS : Orange - the result I have before // Blue - the result I have

[geert_2 557]

That is very severe underextrusion, which can have a ton of causes: partially blocked nozzle, worn-out teflon coupler, bad little nozzle fan, dirty feeder, too wide filament, friction in feeding traject, printing too cold, too fast, etc...

 

Search for the whole list made by user gr5 on this forum (I don't know it by head), which has excellent info.

 

[franckcorduant 0]

Hello,

 

Thanks so much, actualy, it was a buse problem. I bought a new one et everything has became perfect.

 

Thank you,

 

Franck