Strange shift during Infill

K8200 3D Printer K8200 - Issues while printing
1

Hi all!
Since yesterday I got a strange problem .
During infill, after a travel move, the print shifts (in direction of the infill, not in direction of one axis).

Because it is in direction of the infill (in my case 45°), I assume its not caused by a motor loosing steps.
Then the shift should be in direction of one axis.

The gcode files are ok, i checked it in repetier.

I reduced the speed and accelleration (400 mm/s). -> No improvement.

Does anybody have an idea, where to search for this error?

2

Can you try to shoot a movie from when it happens?

That would make it easier to evaluate.

3

You say that the infill is set at 45° but it’s parallel (or perpendicular) to the edges. Does it mean that you printed your object tilted at 45°?

4

Good point! I overlooked that.

If the infill is printed colinear to the axes he might face a slipping belt or a loose pulley.

5

Have you tried to reprint that project?
Maybe it has something to do with the drawing.
You could try Cura to slice it.

6

Try turning the part by 45° and reprinting.
What is the result then?