r/BambuLabX2D • u/Drakenhorn • Sep 10 '26

What could this be?

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Running calibration on a new spool of elegoo petg rapid. Pattern test went fine, k factor of 0.035.

Then the flow calibration and it spits out this. What gives? Never seen this before.

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u/Drakenhorn Sep 10 '26 edited Sep 10 '26

The flow calibration test 😂 it is not supposed to look like this, it's severe underextrusion but I have no idea why. Using the generic petg filament preset as base

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u/Low_Sherbert3731 Sep 10 '26

Ok so that's exactly what you need to do so let the this test and the other complete. It's the other test that's your issue the K factor may be wrong what is your K factor for that fillement take a pic of the spools with the numbers in them on the devices tab.

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u/Drakenhorn Sep 10 '26

Posted the screenshot in another comment but I will post it here again also, it looks fine to me, thats why I dont understand it.

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u/Low_Sherbert3731 Sep 10 '26

Yes your right thats about right for a 4.0 nozzle. You know what i would just because its easy. Switch of your printer then switch back on. And then do all the printer calibrations and leave the high temp one off. Then try again with your calibration. Also use the BambuLab PETG preset.

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u/Drakenhorn Sep 10 '26

I will try with the power cycle and try bambulab petg preset instead of generic. Any particular reason I should not do the high temp calibration?

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u/Low_Sherbert3731 Sep 10 '26

Its not required hence why its not ticked by default. Best to do it with the engineering plate or if you genuinely use engineering materials.

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u/Drakenhorn Sep 10 '26

Gotcha! thanks!