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BB nozzle always dirty


Ziogianni84

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Posted (edited) · BB nozzle always dirty

Why does my BB nozzle (loaded with PVA - 220°C) comes out charred after every print?

xomicl.jpg

If you compare it to the AA there's a huge difference, since as you can see (on the right side of the pic) the BB nozzle is covered by a burnt layer of goo.

Edited by Guest
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    Posted · BB nozzle always dirty

    The situation gets a bit less bad when you switch off the prime blob for the BB core as the nozzles deeply dips into that blob (no idea why but I guess this could be fixed). But you need a skirt or brim to have proper priming for the PVA this way.

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