UM3 Repeatable misprint

[kompetenz-pro 0]

Hello!

I have no idea anymore.  My Ultimaker 3 always makes the same mistake. As you can see on the photos, I always have dropouts on the same spot. Repeatable.

 

 

Top Left

 

Left/Right Bottom and Right Top - no problems

 

I have already tried the following:
- different temperatures
- different cooling
- different velocities
- different positions on the printing bed
- Cura 4.2 and 4.3
- Filament diameter measured
- different line widths
- Axes aligned (with calibration sticks)
- Fan controlled
- Drive belt tensioned
- different Printcores

 

I'm grateful for any advice!

 

[DF-Werkzeugservice 9]

There could be something wrong with the model... does this area show any irregularity in the Cura preview?

 

If not, a slight increase of the flow rate (maybe 2%) should solve the problem, or you could use the experimental "ironing" feature in cura.