Nice

Can you please provide CAD file (STEP or Fusion 360) for the M3 nut?
Couldn't get the nut to work at all - will try with other filament and play with print settings. The screw works fine (PLA, MK4, 0.05 ULTRADETAIL) with a metal nut. Some issues with the hole as there is too much material in there for the Allenkey to fit - tried printing bottom-up with brim - but no luck either. A triangle bit in mi micro driver works just fine. Last picture is inserted screw (with metal nut on the other side)
Works well after some support from @Nikolica - see last picture. Don't forget to 'polish' the thread with a metal nut ! (edited)




@tinkerNinja try normal 0.2mm layer height, because 0.05mm seems too low
@Nikolica Thanks for the hint - at 0.2 I get a decent nut and the head looks good too so I did 0.2 for the head and nut and then going to 0.07 for the thread - looks nice and works well - thanks for the support !!!
Am going to change to 5* ;)


Dude you're a life saver. Ok maybe not a life saver but you've done humanity a great service lol

The nut doesn't fit at all, need to try multiple scales. Issues with the threads within nut makes it useless even after proper scalling.
Also facing similar issues with the bolt.
Could you share the model files?
thanks for the model. came in clutch while upgrading fan duct of Anycubic I3 Mega S

used it as negative volume for one of my models
Printed good on my ender 3v2 but the screw head wears out fast. Would it be possible to make the hole a little deeper?