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Nozzle lifting itself while printing first layer
Not sure what to make of this, but during printing, the nozzle keeps lifting itself higher over time. In the pic you can clearly see a nice first layer to the right, with slowly a gap forming towards the left. The gap disappears when lowering the z-offset by -0.05 mid print. I have to continuously lower the z-offset during the first couple of layers, after which it seems to stabilize.
So this is what I have tried so far:
- 1 -2hour bed heat soak
- 10 min nozzle heat soak
- Stable chamber temp @45c
- Titanium x-gantry
It doesn't seem to matter if I do a 1 hour or 2 hours heat soak, the lifting starts when printing starts.
What on Earth could this be? Nozzle shrinking due to filament flow?
With the aluminium x-gantry the nozzle was going down over time, so things could be worse
So this is what I have tried so far:
- 1 -2hour bed heat soak
- 10 min nozzle heat soak
- Stable chamber temp @45c
- Titanium x-gantry
It doesn't seem to matter if I do a 1 hour or 2 hours heat soak, the lifting starts when printing starts.
What on Earth could this be? Nozzle shrinking due to filament flow?
With the aluminium x-gantry the nozzle was going down over time, so things could be worse
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