MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
That looks quite good now!
A good first layer (adhesion) is the half battle won.
Did you check the bowden inside the heatbreak whether this is still good and plane or not.
If the bowden is not fitting properly to the nozzle it might leak filament and causing clogs during the print.