Are you printing with fans on? It looks like that part of the print has a very small surface area so the heat isn't dissipating very quickly so the material is oozing a very small amount. Try either turning on the fans or increasing the speed to help reduce the heat.
BR
Rich
Edited by Guest
Recommended Posts
rowiac 53
Have you looked at the slices in the gcode to see if those marks appear there?
Link to post
Share on other sites