and i forgot to ask, where is the assembly guide :-) Link is not available. thank you.

ok thank you. do i need the 3mm dfx file too ? or just the 6mm `? i just milled the 6mm file

I think you can just run a 3mm drill through the filament path? Just make sure the filament path is still straight after that, so there is no kink in the filament. You can always modify the dxf's if needed.

hey. is there any chance getting this to 3mm ?