I made this thing. It is round, 18cm diameter and slopes up slightly.
I printed it on a X1C out of TPU 95 HF filament. The alignment was with the logo towards the door and seem to the back, so exactly like it is in the picture.
After printing was finished I notices some strange patterns on the surface. I highlighted them with the green lines. Some kind of interference? Stepper motor noise? What could this be???
Original:
With green highlights:
This issue could be due to your infill settings, whether it’s the pattern or the density. What infill settings are you using for this model?
Good point. I can see now the pattern is visible in the preview also.
I used Grid as infill. But when I change it to concentric the patter remains in the preview so I guess that is not it.
Experimenting in the slicer it seems to be an artifact of the direction of the top surface infill…
If I change the infill direction to 90 deg (nominal is 45) the pattern shifts 45 deg.
It appears to be caused by the infill pattern having small straight lines to infill the circle…
Would you mind sharing just a photo of the infill, without the top layers? My personal favorite infill is Gyroid, as I’ve had great success with it.
Perhaps you could even share the 3D model as well.
In that case, I recommend experimenting with different infill patterns to find the one that works best for your model. Alternatively, you could try increasing the top layer count to see if that helps resolve the issue.