How to delite this white marks

[bp781 0]

Cura is showing white dots on the model and after printing there are such small dots, what is the reason?

Thanks in advance for help
?

[GregValiant 1,318]

I'll guess and say you have your Zseam location set to "Random".  Those blobs are something else though.

My next guess is that the printer/processor isn't keeping up with the gcode flow and those are stutters.  The nozzle has to stop for a split second while it waits for the next command and those stops will leave a little blob.

In the Cura Mesh Fixes section check your Maximum Resolution.  It should be around 0.4 or 0.5.  Smaller values allow really short line segments to be generated in the gcode so it takes a lot of lines of gcode to move the nozzle 1mm around a curve.

You could also try the ArcWelder plugin.  It converts the little line segments into curves and makes them G2 and G3 commands that the printer calculates as arcs and circles (kind of - they will still be line segments but subject to the Minimum Chord Length setting in your firmware.)  Not all firmware supports G2/G3.

[MariMakes 199]

Hey @bp781,

 

Thanks for your report 👍
Those are some biiiig blobs on your zseam. 
I think it's probably related to those settings, or to retraction settings.

 

Do you have a project file for us? It contains the printer and settings we need for troubleshooting. 
To save a project file go to File -> Save project.