Hi, I am trying to replace the extruder with a better quality one than what comes stock with the printer. The issue I’m running into is that the stepper motor shaft does not have a flat side, it’s just round with the gear built on it. I guess this is not the case will all ender 2 pros? When trying to look for a new stepper motor, it seems difficult to know if what I am purchasing is actually for my model printer. Could someone verify for me exactly what I need to get for this printer?
For what it’s worth when I purchased an extruder upgrade I had to get a new motor. The motor on my Ender 3 pro had a press fit gear on the motor arm and it was too short to fit the dual gear extruder (I did manage to get the press fit off only to realize the arm was too short).
If you’re able to order from Amazon, or a similar store with a decent return or exchange policy, I’d just get what you think you will need and return or exchange as necessary.