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Hopefully that url works...

I've been having this issue for awhile, but not sure of cause. I would love any and all thoughts please.

I'm using t2.5 for my timing belts, which I hear is rather out of date and should be upgraded... Not sure if that could be the cause here?

Thank you all

It looks like too hot extrusion, It looks like under extrusion. It appears to me you could have a deformed and partially plugged PTFE Throat.

Thank you, I will look at the throat and try to clear

What Roberts said,

I would also check and re-calibrate the extruder. It looks like is not always extruding as much as it should. It could also be slicing related. Going too fast around small perimeters etc.

Many variables, but temperature and extruder calibration would be my guess.

Good luck.