Should I be able to hand turn the stepper motor for the extruder of an Ender 3?
Trying to figure out why the motor isn’t turning on a new to me, never used, but out-of-warranty Ender 3.
Swapping controller cables I discovered the extruder port on the motherboard is dead, but even if I put it on the X axis and manually move the axis it makes the sound like it should move, but doesn’t actually move at all.
Trying to figure out if it’s seized or something. Doing a resistance test with a multimeter shows a resistance of 4 for either of the two pairs of wires. I am not sure what else to test.
I have a hard time believing I need a new control board and a new stepper motor, but maybe two things are broke.
Thanks for the help!
EDIT - Got the Extruder Working
After the comments here mentioned that "Yes, it should be able to be moved by hand", curiosity got the better of me and I said, "Well, if its broken, let's see why".
I did the following:
- I tried to turn the stepper motor by hand again, just to confirm I wasn't crazy from the day before when I tried it. It wouldn't budge.
- I removed all four screws on the bottom of the stepper motor and attempted to pry things apart. While fiddling with it, I thought I saw the stepper motor turn.
- Sure enough, I now tried to spin the stepper motor and it moved relatively easily.
- I put the 4 screws back in place and validated I could still hand turn the motor. I could in fact do so.
- I hooked the stepper motor back up to the X axis controller and told it to move, and sure enough now it moves and works!
- Just as a sanity check, I then hooked it up to the extruder controller and it again wouldn't turn.
I'm going to try what @towe recommended to make sure the controller board is in fact fried, but I think I might JUST have a fried board and not a fried motor.