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Ultimaker Original - blobs on prints


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Posted · Ultimaker Original - blobs on prints

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!

blobs.thumb.JPG.c7aa7b90aa04ccb304646b21fd181b8f.JPG

blobs.thumb.JPG.c7aa7b90aa04ccb304646b21fd181b8f.JPG

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    Posted · Ultimaker Original - blobs on prints

    Hi LePaul,

    This one is interesting.. Can't help but, I do not believe this is a "random" blobs placed with this precision on two of our standard test object. No Way.. :)

    Why not try the flow test, as this will show "the error" more easy for us to investigate?

    Thanks.

    Torgeir

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    Posted · Ultimaker Original - blobs on prints

    Hi LePaul,

    I'm thinking about this one:

    https://www.youmagine.com/designs/test-print-for-ultimaker--2

    Hmm., do not know if this is to much for a UMO, but you'll see.

    This is the little single layer tube, that’s used for flow test, this blobs should make some interesting pattern in this tube.

    Thanks.

    Torgeir.

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    Posted · Ultimaker Original - blobs on prints

    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.

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    Posted · Ultimaker Original - blobs on prints

    I may even try a different nozzle....

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    Posted · Ultimaker Original - blobs on prints

    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.

    Torgeir.

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    Posted · Ultimaker Original - blobs on prints

    That's good advice

    I'll slow it down and see how the blob situation goes.

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