<p>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.</p>

<p><a href="https://i.stack.imgur.com/ShfZn.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ShfZn.jpg" alt="First extruded layer on Prusa i3"></a> </p>

<p>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. </p>

<p>What else can I do to get the first layer right?</p>

[{'answer_id': 3575, 'author': 'StarWind0', 'author_id': 2146, 'author_profile': 'https://3dprinting.stackexchange.com/users/2146', 'pm_score': 2, 'selected': False, 'text': "<p>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. </p>\n\n<p>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..</p>\n"}, {'answer_id': 3737, 'author': 'raviriley', 'author_id': 6384, 'author_profile': 'https://3dprinting.stackexchange.com/users/6384', 'pm_score': 1, 'selected': False, 'text': '<p>Either you are extruding way too hot, or your filament has absorbed too much moisture and the water absorbed inside the filament boils instantly in the extruder, resulting in a gap or "bubble" in the filament, leading to bad extrusion. What temperature are you extruding at with your PLA? Hope this helped!</p>\n'}, {'answer_id': 11584, 'author': 'Rod', 'author_id': 19484, 'author_profile': 'https://3dprinting.stackexchange.com/users/19484', 'pm_score': 0, 'selected': False, 'text': '<p>I had this problem and I had to adjust the nozzle temperature 10&nbsp;&deg;C below the minimum temperature of 190&nbsp;&deg;C!</p>\n'}]
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