@admin said in E3 V2 layer shifting:

1. Check the slice layer height setting (0.15mm best)

I'm confident that the layer height setting is not causing this issue. I'm using 0.24 for these test prints.

2. Print speed is recommended to be 55 best

I'm way below this.

3. Check whether the X Y axis profile and the pulley are defective deformations, t rod nut to adjust a little loose

I have double-checked belt tensions and the eccentric bearings on the guide wheels. The X,Y and Z are all moving freely with no binding. I can double-check the lead screw nut but it was very smooth when I assembled the machine 2 days ago.

4. Check whether the motor line is loose contact is not good, test the resistance of the motor pins, under normal circumstances the red arrow and green arrow pointing to the resistance of the two pairs of pins is about the same

I will check the stepper motors resistance and get back to you.

If you would register an account here and read this post. You will see that several people are affected and they could only fix this problem by better cooling the control board.

Here is some pictures they shared.

@Tam

I'm going to need a lot more detail.

• Could you share the type of fillament?

• Could please share the temperatures and speeds you are using?

• Could you share a link to where you got the file from?

• Could you share a higher resolution picture of the failed print so I can zoom in a look for clues?

• Could you also share a video of the first layer of the raft going down? Also when it starts to print the actual model, or at least where you think its going wrong?

Even though I have been printing for almost 7 years now, I still use this guide when I need help. Lots of great resources on youtube as well.

From what I can see in the picture I have a few rough opinions.

• The part its self looks like it was printed really hot or possibly over extruded. It looks a little messy and I can't see the individual rows of filament.

• I see you are using a raft and that is almost never needed. If you are having problems getting a part to stick then try a brim instead.

• I know it's annoying to hear but your bed level probably has something to do with your problems. These print beds are never flat. That means even if you are level in the corners you most likely are not level in the middle of the bed or some random location where the bed has a kink/dent. That is fine though because the bed being level really only affects large prints. When people say "bed level" usually they are referring to the distance from the bed to the extruder nozzle. This is crucial and has a very tiny acceptable range. The acceptable range is about the thickness of a piece of paper. If the nozzle is too high (you can slide a sheet of paper under it with ease) then the prints won't stick. If the nozzle is too low (sliding a sheet of paper under the nozzle requires lots of force) then the first layer is smashed down and on the second and third layers the nozzle drags over the print and risks knocking it off the build plate. What you want is a medium resistance when sliding paper under the nozzle.

It can be really frustrating when starting out. It takes a bit of learning to get decent prints and lots of learning and practice to get reliable amazing prints. This is true of all printers at all price points.

@admin said in E3 V2 layer shifting:

1. Check the slice layer height setting (0.15mm best)

I'm confident that the layer height setting is not causing this issue. I'm using 0.24 for these test prints.

2. Print speed is recommended to be 55 best

I'm way below this.

3. Check whether the X Y axis profile and the pulley are defective deformations, t rod nut to adjust a little loose

I have double-checked belt tensions and the eccentric bearings on the guide wheels. The X,Y and Z are all moving freely with no binding. I can double-check the lead screw nut but it was very smooth when I assembled the machine 2 days ago.

4. Check whether the motor line is loose contact is not good, test the resistance of the motor pins, under normal circumstances the red arrow and green arrow pointing to the resistance of the two pairs of pins is about the same

I will check the stepper motors resistance and get back to you.

If you would register an account here and read this post. You will see that several people are affected and they could only fix this problem by better cooling the control board.

Here is some pictures they shared.

The E3 V2 is my third 3D printer and I'm very happy overall but I'm having a strange problem. On certain prints, it seems either the stepper motors or drivers/control board overheat and then they have a problem stepping correctly. This leads to layer shifting constantly in a stair step like pattern. This is not a belt tension issue as the belt is not slipping over the gears but I have tried both tightening and loosening the belts. I also found someone else with a similar problem here.

I first thought it might be an issue with the Gcode but I tried both PrusaSlicer v2.2 and v2.3RC-2. I also changed the model because why not but still the issue remained. I then thought it was an issue with the 150mm travel speed, so I changed it to 90mm but that didn't help. I also tried printing two calibration cubes that were 150mm apart but that did not cause the issue. I then tried a complicated spiral vase that wouldn't have any travel moves and again the layer shifts happened. Once a layer shift happens more will occur with increased frequency until the print completely fails. This is a tricky problem to track down because if the print is small enough or large but simple then the layer shifting does not happen.

My printer is on a wood table in a room with no heat where the temperature ranges from 15-20c. So it should not be having an issue with overheating. I also noticed that on the first day this printer was completely silent besides the fan. On the second day I could hear a little bit of "driver" noise and that's also when I had my first layer shifting. On the third day the noise was like a normal printer, sounds like it's trying to dial up the internet.

My pictures wont upload here but I have shared an album here.

1. just a picture I took while it was printing.
2. side profile that shows the printer printed fine for the first hour and a half.
3. shows that when you immeditaely restart the print the layer shifting happens much faster now that the printer is already hot
4. shows I tried a lot of different combinations of settings, slicers etc but still layer shifting after a while.

The only picture I dont have is of the vase because I gave it to my mom and I would need to get it back but I might just print another one. I highly recommend people try to print this model with the stock "draft" profile that comes with PrusaSlicer 2.2 or 2.3 to see if their printer is also defective. Since mine is 3 days old I have just issued a return with amazon and should have a new one in a few days. I will post an update later on how the new printer behaves.