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Ultimaker Original - blobs on prints

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Well this has me puzzled

I think I have ruled out ...

The extruder (inspected/clean...no debris found)

Fans same settings on each

Filament - Used Ultimaker Silver @225C and ColorFabb Orange @ 210C

Retraction set to 4.8mm at 45 mm/sec

Nozzle is clean (atomics show a good, clean nozzle)

Note the same areas with defects. Looks like underextrusion near bottom...then left eye of the robot has some blobs.

What could it be!



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Try printing at half speed.  Quality just sky rockets at 20 to 25mm/sec.  And make sure ALL printin gspeeds are the same - none of this "infill faster" stuff.  Fast travel speed is good but slow printing speed.

Hi gr5 and LePaul,

Even a better idea for sure, go for it, but don't change the nozzle -just one thing at a time..

Good Luck.


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