second layer adhesion problems

[Chrismolloy]

I am having an odd problem. When I print large items, bigger than 20mm in size, when the second layer prints, when the length of the pass is greater than 20mm, I get poor adhesion. the first part which has shorter passes adheres just fine, but longer passes do not adhere properly!

[Mark]

what's the filament and temperature you're using?
usually for PLA the hotbed: 60-70 , extruder: 195-210;
for ABS bed: 90-100, extruder : 220-240
And how's your slic3r settings?

[Chrismolloy]

I have figured it out. I have a .3mm nozzle and had my layer height set to .3mm. Changed layer height to .2mm and all is well. Read on reprap wiki that layer height should be <=80% of nozzle size. They are right!

I have been printing up a storm with these settings, and almost everything printed well, until I started bigger prints. Thats when the problem arose!

Thanks for your interest in helping me.