Tried to tighten the belt for the extruder and x-axis cable a bit, also went down in layer thickness to 0,15 mm and higher temperature 205 C. Printed the popular filament guide. Which is a two piece. Pretty much the same problem as the first print. Some problems in the beginning, after 10 layer or so. This time all around the models. The end cap became almost see through at this part, like a mesh, don't think that was designed that way. The arm itself had similar problem that disappeared and the reapperad in the end of the print.