Ok, seeing all these different settings, I'm using Ultimaker ABS black on the Ultimaker 2 extended with glue on the bed and still the material is not sticking to the bed. It's peeling up.
My settings:
Print temp: 250C
Bed temp: 110C
Fans: 0%
Flow: I have not adjusted.
The setting for Print temp and bed temp are from the fbrc8 support analyst. Any other suggestions wouls be helpful, as this is my time using a 3D printer.