It seems that Geeetech does not provide nozzle with differents size or material and A20m nozzle are 4mm inside diameter rather than 2mm.
I suppose they use 4mm to enable mixing filament ? so it is maybe not necessary to use 4mm diameter if not doing color mixing no ? anyone tried other nozzle size ? can you point me wich one I can use ? I would like to use a 0.6 nozzle with a material suitable for abrasive filament.
Anyone tried other nozzles for A20m ?
Re: Anyone tried other nozzles for A20m ?
Hi, the nozzle is 2-in-1-out M7.-Keep your mind and try to test it. 
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-Everything will be fun！-Support all Getech printer.
-You can ask me the questions and I will kindly reply.
-Respect others is the best way you can get help!