UltiMaker uses functional, analytical and tracking cookies. Tracking cookies enhance your experience on our website and may also collect your personal data outside of Ultimaker websites. If you agree with the use of tracking cookies, click “I agree, continue browsing”. You can withdraw your consent at any time. If you do not consent with the use of tracking cookies, click “Refuse”. You can find more information about cookies on our Privacy and Cookie Policy page.
I started having this problem after Cura 5 was released. I believe in my case it has a lot to do with the new "Flow Equalization Ratio" setting under the 'SPEED' menu - which affects the way the slicer decides to change line width. A '0' value makes it change the flow to adjust line width. A '100' value makes it change the printhead speed to adjust line width. Anything in between is a blend of the two at the given ratio. Try changing this value and see if it affects the line start positions after re-slicing. After trying this myself, my start points shifted and it fixed the issue. Prior to learning this, I had found that setting 'Outer Wall Wipe Distance' to '0' also helped alleviate some of the problem, by keeping more pressure in the nozzle after the travel move prior to the new line start. I hope this helps!
Under-extrusion at start of some lines
in UltiMaker Cura
Posted · Edited by filamentalPW
I started having this problem after Cura 5 was released. I believe in my case it has a lot to do with the new "Flow Equalization Ratio" setting under the 'SPEED' menu - which affects the way the slicer decides to change line width. A '0' value makes it change the flow to adjust line width. A '100' value makes it change the printhead speed to adjust line width. Anything in between is a blend of the two at the given ratio. Try changing this value and see if it affects the line start positions after re-slicing. After trying this myself, my start points shifted and it fixed the issue. Prior to learning this, I had found that setting 'Outer Wall Wipe Distance' to '0' also helped alleviate some of the problem, by keeping more pressure in the nozzle after the travel move prior to the new line start. I hope this helps!