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akke

Underextrusion at random positions, in top/bottom layers

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Posted (edited) · Underextrusion at random positions, in top/bottom layers

On my new s5 i’m having underextrusion issues in top/bottom layers and it seems to be random and/or model dependent... Small prints usually do not have this issue but anything bigger is usually underextruded at some point.

 

I’ve seen it happen in bottom layers even at the early beginning in layer 2 or even layer 3 (after layer 2 was printed without issues...)

It happens in top or bottom layers and sometimes it’s underextruding a whole full layer and the next one is fine again.

I've not seen it happening in other places.

 

With some models the printhead needs to travel while printing the top layer and I’ve seen it printing fine and starts under extruding after a travel move (and back okay after another travel move sometimes..)

 

I don’t know what to make of this but many of my prints have bad top/bottom layers and I need to get this fixed.

 

Any idea’s what could be the cause?

5308E0E5-FC0C-4595-A64B-CA3608AD32AD.jpeg

187C98F1-D51B-4A21-973C-2404B08581EF.jpeg

48D0E85E-0B1F-431E-A57D-44D61175686B.jpeg

A7CEF7C6-3D82-4010-AC61-D7B15B52D1B3.jpeg

Edited by akke

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Posted · Underextrusion at random positions, in top/bottom layers

Besides the above problem I do wonder if it’s normal to see horizontal banding like seen on the picture below. If this is normal, then it’s okay but if you think this is an issue it might be related?

5D502F55-E57E-4606-A47A-56A4144E300F.jpeg

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Posted · Underextrusion at random positions, in top/bottom layers

Isn’t there anyone from Ultimaker with some advice?

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Posted · Underextrusion at random positions, in top/bottom layers

where is everybody ?

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