Under extrusion first layer new A1 printer

Cleared and checked the entire filament path, cold pull, took out tubes, took out filament guide, changed the nozzle to the Hardened steel. BAM Printed an entire bed 250mm x 250mm 1 layer and it’s a solid sheet of plastic.

100% fixed.

I think the factory Steel Nozzle had a defect in it which was restricting the flow of Plastic. I never found anything in the filament path that was obstructing. Needless to say, I am not using that nozzle again. Now I have the hardened steel installed.





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