I have an original Ultimaker and am having issues with the nozzle clogging.

3D Printing
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1

I have an original Ultimaker and am having issues with the nozzle clogging. I am able to clean it using propane torch followed by light sanding inside, but it clogs again after a few prints.

When I remove the filament, I notice that the end has melted about about 5mm, so maybe its melting where it isn’t supposed to?

Anyway, I know that after the cleaning “abuse” I probably need a new nozzle. Has anyone tried these?

Or These? http://www.amazon.com/Ultimaker-Compatible-40-Nozzle-Machined/dp/B00I508ZTA
http://www.dx.com/p/0-4mm-copper-nozzle-for-ultimaker-3d-printer-golden-2-pcs-289481#.U1gKlFeGo_g

2

Before you do anything, you should change filaments…

I have never had a nozzle clog. Never. 5 years, 0 clogs. If you’re using decent quality filament and not printing at some insane temperature, the problem isn’t clogging.

3

I used to have nozzle clogs, but that was with the UM V1 hotend. Since the upgrade to V2 from UM not a single clog.