Is it possible to buy/upgrade the nozzle on my Ender 3 Pro to one that is suited for handling the higher temperatures needed to effectively print with PETG filament?


No hotend upgrade is required to print PETG on an Ender 3 (pro or any other variant). The stock hotend can be used at temperatures up to 250 ˚C, and 230-245 ˚C is the range typically recommended for PETG. I print it at 245 ˚C.

You may however want to upgrade the extruder. The stock extruder lacks both torque and grip, and significantly skips/slips when trying to print PETG at any significant speed. Going over 40 mm/s or so is likely to produced failed prints. Look for an extruder with gear reduction and a hob that's designed to grip the filament better (vs the flat one that comes with the printer) or even dual driven hobs.

  • $\begingroup$ would it be one made by the same company, im somewhat new to this so I'm not too sure where I would look etc $\endgroup$ Sep 16 '21 at 15:42
  • $\begingroup$ I'm not sure what kind of simple drop-in-replacement geared extruder is best for Ender 3 type machines these days. I have a rather fancy remote direct drive extruder on mine, which I'm very happy with, but you don't have to go that direction to get good results. I know a lot of ppl use Bondtech BMG or clones of it and recommend them, but there might be something designed for more direct mounting on E3 that's easier and less expensive. $\endgroup$ Sep 16 '21 at 16:15
  • $\begingroup$ would it be easier just to reduce the speed, or would that cause worse problems? I think I found one that is compatible but I'd like a second opinion lol Redrex Upgraded Aluminum Bowden Extruder with 40 Teeth MK8 Drive Gear for Ender 3 V2,Ender 3 Pro,Ender 3,CR 10 and Other Reprap Prusa 3D Printers amazon.ca/dp/B07DDGGN92/… $\endgroup$ Sep 16 '21 at 16:19
  • $\begingroup$ I also found replacement grip gears for lack of a better term, that have solid reviews so that is probably a better idea. $\endgroup$ Sep 16 '21 at 16:28
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    $\begingroup$ @Zeiss Ikon yeah I'd need a new stepper thanks for the heads-up :) $\endgroup$ Sep 16 '21 at 18:35

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