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Layer Shift Issues

Posted: Thu Aug 17, 2017 11:05 pm
by 3dztech
Hello everybody :)

Can someone be so kind and help me resolve this issue with what seems to be random layer shifts on my prints.

>Occurs on any model/file I try to print.
>I have used multiple brands of PLA filament, issue persist (although more expensive filament reduces the overall issue, these larger layer shifts still persist)...
>I was originally using Simplify when I first starting noticing the shifting, but then tried CURA to see if issue persist, and it does.
>My print speeds are pretty low (at least I think so. 60mm/s)


Re: Layer Shift Issues

Posted: Fri Aug 18, 2017 2:57 am
by ednisley
3dztech wrote:what seems to be random layer shifts
Those don't look like shifts due to XY motors stalling from either impacts with up-curling plastic or excessive acceleration, because the offset doesn't continue upward from the defect. For example, you'd see an inset on the -X side and an outset on the +X side, with everything above that plane building with the same offset, as though you'd sheared the model on that plane and shifted it over a few millimeters.

Check for:
  • A non-manifold model causing the slicer to produce bad G-Code
  • Insufficient / weird infill patterns + not enough perimeter threads
  • Incorrect Extrusion Multiplier for the particular filament / speed / temperature
In a situation like this, always verify the G-Code to make sure it's doing what you think it should. Use an independent viewer like, step through the model layer by layer, and keep an eye on the infill as well as the perimeter.

Good hunting!

Re: Layer Shift Issues

Posted: Sat Aug 19, 2017 6:04 pm
by 3dztech
Thank you for the tips, good sir.

I will get to work on those tips and see what I can come back with. :)