Okay had a gyro thing going great - about halfways through something in the filament (believe it was some of the flashforge filament) blocked the nozzle. And while the gyro thing spins, it's only half finished.

Now Can I just unscrew the brass nozzle without dismanthling the entire print head ?
In which case I'll just drop it in aceton for 24 hours and poke it witha very small pin.

Or do i have to dismantle the entire print head to remove the brass nozzle.

I've seen the replacemtn nozzles on amazon and ebay for a couple of quid.
And they have a simple thread - so logically I should just be able to unscrew to change nozzle size and replace nozzles that can't be unblocked.

Thoughts and indeed knowlege, please :-)