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Ultimaker 3 BB nozzle blocked by PVA


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Posted · Ultimaker 3 BB nozzle blocked by PVA

Hello,

 

My BB nozzle is blocked and I suspect it is due to PVA.

 

The printer is very new as I only printed 2 objects since i bought it. It is loaded with PLA(AA) and PVA(BB). I was trying to print something today with PVA as the supporting material. However, the PVA didnt extrude and the nozzle seemed blocked. I then followed the cleaning instruction using PLA to clean up but the nozzle is still blocked. Tried to load/reload filament, increase the temp to 225 from 215, etc but none of them is working.

 

I am now stuck as I havent printed much but now blocked. Anyone has any thought on unblocking it? 

 

Many thanks,

 

Yang

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