My prusa I3a worked fine for a few week, but not any longer...
The extrusion seems to stop and start again not regularly...
I don't know what to do, I've put a new nozzle but the problem is the same.
Here is a picture of a first layer, it is supposed to be full...
HELP!!!!!
![Sad :(](./images/smilies/icon_e_sad.gif)