PLA bubbling in the first layer of a print I am using a Prusa i3 printer and just recently I have been having problems with the first layer. Here is a picture of what it looks like.

 

I have tried levelling the bed and it seems to be level. I was using a glue stick before but it started bubbling on that, so I switched to tape and that worked once but it is not working now. I wiped the tape with rubbing alcohol and it happened again. 

What else can I do to get the first layer right?
Oh wow. You are way over cooking your PLA. It is bubbling because it is BOILING. I can tell you have it too hot because the lines are all blurred as if they are liquid and pooled together. 

That said I can't give you details because you didn't post settings. I would start by turning the temps to 170&nbsp;&deg;C for hotend and 60&nbsp;&deg;C for plate. Also the gluestick it self should never bubble. It is unclear if that is an issue..