What causes this? after hotend assembly replacement

Since i needed to replace the hotend assembly I am seeing this in every 2nd print. The filament comes out on top of the hotend… Anyone an idea what i screwed up here?

Tx

Frank

Check the nozzle is align and the left nozzle guide is moving correctly up and down.

Dual Extruder Filament Guide

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I unplugged the hotend, put it in carefully again. And now the H2D is running for several hours with several prints just fine.

Weird. It did not look unaligned one bit before. Optically i can not detect a difference.

In all honesty, the H2D seems to be a bit more finicky than my P1S was. I am spending a lot more time calming his character than i was before. Probably spend more time “fixing” issues in 250h of print time than in nearly 2000h on the P1S.

Frank

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