Nozzle dragging through top of print

[The3DPrintStudio 5]

I am new to Cura and the Ultimaker 3, but I am noticing when using Cura the nozzle is leaving marks on the top of a print.  I don't seem to have the same issue using the default Simplify3D profile.  I am using the default PLA profile in Cura, using the 0.15mm layer height for the print.  Should I be changing any settings to fix this?

Edited March 26, 2017 by Guest

[smartone 1]

I have been having the same issue. I have not printed with Simplify3D yet, so it's good to hear that the issue isn't seen there. I was told to turn on ZHop, but so far it hasn't made a difference. There is new firmware available for the UM3, so I am hoping that helps in some way. It is version 20170322. Give ZHop a try and let me know if you had any luck with it. (Though that seems more like a work-around than a fix.)

[The3DPrintStudio 5]

 

@Smartone, I found that if I turn combing to "no walls" and then I also lowered the Flow for printing PLA to 95% and this seemed to fix it. It looks like it was a mix of overextrusion and the combing is doing a Z-hop when it moves over the outer layers.