Hi guys,

I got a first layer issue during printing PLA. I have tried several times but still have same problems. At the beginning the print was quite nice, but after a while, these is are “bumps” on the surface. Some people said it is about the distance between nozzle and the bed. I have done some adjustments on the distance but problem still exists.

I’m using the Flashforge Finder, which has a pre-cut blue tape on the build plate and has no heated bed.

It would be grateful if someone can help me to solve this problem. Thanks a lot.