Printing problem - Creating vertical line on parts

[freeuser98 0]

Hi everyone.😃

 

I have a problem with my printer... (a Reprap printer)
My printer creates a vertical line on the printed part.😐
Printed parts with a circular pattern have this problem more ,like "flower pot".
Does anyone know what my problem is?  Is this a software(like Slicer,Firmware,...) or hardware problem?🤔
You can see this line in the picture.

 

Regards, freeuser

[classified 0]

Check your belts and make sure they're tight.  Check to ensure there's no slack on your X and Y belts. 

[GregValiant 1,144]

That looks like it's the Z seam.  There is always a Z seam.  On parts with corners Cura has settings to try to hide it.  On round parts there just isn't anywhere to put it.

There are options for "random" but that leaves little blots all over.

If you set the Wall/Outer Wall Wipe distance to .1 or .2 you may be able to make it less noticeable, but there is always a Z seam at the start/end of a layer.  Turning off "Retract at Layer Change" can help because it will avoid a little prime blob at the start of a layer.  Turning off Z hop can help as well.

Edited July 3, 2021 by GregValiant

[geert_2 557]

Printing slow, in thin layers, and with all speeds the same (=outer & inner wall, infill), also helps. But it does not eliminate the effect, it just might get it into an acceptable range.