Layer Shift

tc61
Posts: 6
Joined: Thu Jun 11, 2020 3:56 am

Layer Shift

Postby tc61 » Wed Jul 15, 2020 2:35 pm

I am printing from the right Extruder and have gotten 3 failed prints in a row where the layer shifts significantly about 2 hours into the print. I have used the machine maybe 4 times , any guesses as to what this could be?

zemlin
Posts: 528
Joined: Sat Oct 21, 2017 2:02 pm

Re: Layer Shift

Postby zemlin » Wed Jul 15, 2020 3:50 pm

There are about 17 different things that can cause layer shifts.
A few that come to mind are
Condition of the gantry rods (lubrication, cleanliness).
Speed, acceleration, jerk settings exceeding machine capabilities (either travel speed or print speed).
Material collects on nozzle - drops blob on part surface causing a nozzle strike.
Part warping/lifting causing nozzle strike.
In very rare cases that can be a slicer bug that causes an error in the GCODE.
Exceeding firmware travel limits.

Are you using any Z-lift? That can help prevent nozzle strikes if warping is a contributing factor.

Sharing some information about your printer, the part, material, process settings .... would help us understand what you're doing.

tc61
Posts: 6
Joined: Thu Jun 11, 2020 3:56 am

Re: Layer Shift

Postby tc61 » Wed Jul 15, 2020 4:36 pm

Thanks for the reply.

I don't think its a Lube or cleanliness as the unit is brand new.

I am using the stock PLA setting with the included PLA

Nozzle looks clean and new.

I sliced the model in Ideamaker , it had no errors.

If the default profile does not include Z lift then I do not think so.

The first layer was flat and about 40 layers in is when it happened.

I am printing a Benchy now just to see if the problem repeats its self on a different model.

I will keep you posted.

zemlin
Posts: 528
Joined: Sat Oct 21, 2017 2:02 pm

Re: Layer Shift

Postby zemlin » Wed Jul 15, 2020 7:39 pm

You say the first layer was flat. Not sure what you mean by that.
Is the bottom surface of the failed print perfectly flat?

tc61
Posts: 6
Joined: Thu Jun 11, 2020 3:56 am

Re: Layer Shift

Postby tc61 » Wed Jul 15, 2020 8:22 pm

Yes, it was a perfect print until the layer shift. No lifting

User avatar
Vicky@Raise3D
Posts: 6939
Joined: Fri Mar 25, 2016 3:54 am

Re: Layer Shift

Postby Vicky@Raise3D » Thu Jul 16, 2020 12:45 am

Would you like to share some images of the failed parts if possible?
Would you like to print a small calibration cube to see if the issue is repeatable or it only happens on large models?


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