My ender 3 is only a week old and it's printing thin layers but it was working fine before I haven't changed any settings just releveled the bed did it over and over and changed the nozzle cleaned it and tryed 1.0 mm nozzle it helped but still isn't printing right
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You changed your nozzle but didn't change any settings. ? 1.0 mm nozzle is pretty big do you mean 1.0? well since you changed your nozzle you also have to change your settings as it was most likely setup for 0.4 mm nozzle that is the problem. I assume your using Cura (not my choice) you need to tell it your nozzle size, filament diameter, layer height and extrusion widths or its not gonna print right. A 1 mm nozzle is very coarse a layer height of 0.5 to 0.8 would be a choice. A review of your slicer would advise best settings for nozzle diameter.
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Then he would not be able to feed it by hand either.
Are you able to see the stepper motor turn? If not, you may have a bad wire somewhere.
If the motor is turning, Is the filament chewed so that the feed gear isn't moving the filament?
Or was Marchie correct and your hot end is not heating up? If it is not heating up, your software should tell you that it has prevented cold extrusion. The hot end needs to be hot before the firmware will let it try to push filament through. If your hot end is hot and still won't feed, look at what your software is telling you the hot end temperature is. You may have a bad thermistor. Check your wiring. The firmware should stop it from heating up with a bad thermistor, but I have seen people disable safety protocols in firmware before.
AND, I totally agree, stick with the .04 nozzle. At least until you get your machine running good and have a good reason to change it.
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Even a .8 is a lot of plastic to push through the nozzle. Are you using the clone hotend that came with your machine? Can you see if the temp is dropping while it is printing? Possibly the hot end just can't keep up. That could be caused by trying to go too fast for the hot end, or a bad connection going to the hot end.
If the stepper motor is turning and no plastic is coming out, check the setscrew on the drive gear to see if it came loose so the motor is turning inside the gear. If the gear is turning, the filament has to have a chunk chewed out of it.
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