Thanks dude will try that.I assume it's still PLA, the bubble's are generally from a high water content in the filament.
So PLA is hygroscopic, absorbs excess moisture and then when you print you will sometimes hear a small "pop" or you will get small filament bubbles.
Pop it in the oven at 50*c for 4 to 6 hours.
Alternatively if it's on every corner, your printer is pushing out too much filament, there is a coast setting, set coast to approximately 0.60mm, it will then coast for the last 0.60mm instead of using the extruder motor to push filament through.
As listed above, that is a good guide too.
The blob occurs when a new layer is started. So what the print bed clean, from the first layer where it touches the bed there is a small bloby.