Printer makes strange Perimeters. Please help!

Hi,

does someone know this effect (see attachment). How can this be avoided? I need fast help......

Regards,
peach303

I'm not sure what else may be wrong, but it looks to me like you are way over-extruding. Have you calibrated your e steps/mm?

Hm dont know. Sometimes he makes this ripples, sometimes not. When not the prints are very good (Perimeters, closed top surface, ...). Maybe the printer has sometimes trouble to feed?

The PTFE tube in the HotEnd got degraded and i had to replace it by a PTFE hose i made on a lathe. But these turned PTFE hoses go bust much faster then theses tubes.

Edited 1 time(s). Last edit at 11/29/2013 03:55AM by peach303.

can you provide the stl file?