Newbie error after changing Extruder and hotend

[PaulHew]

For the last 4 days i have been struggling with a clicking noise from my new extruder. Also had rough layers.
It is a E3D Titan with bowden and I bought their motor also and while I was at it I upgraded the hotend to the V6.

What did I do wrong, I shall explain.
Even though I calibrated the E steps, leveled the bed too many times to count, wrote numerous drafts to post on the forum, lots of failed prints and a shed load or swearing, it eventually clicked, i had missed one step.
Even the retraction test worked fine with no stringing but there was some clicking.
In Cura they call it 'Flow', in others i think it is called Extrusion Rate.

Just because you have your E steps correct does not mean that it will print perfectly.

Resolution
Found the 25mm cube I used when I was on Marlin firmware, printed it, took 8 measurements, divided by 8 and gave me my average wall thickness in my case 0.6. My Nozzle dia 0.4 = 0.8 wall and current 'Flow' was 100%
So 0.8 / 0.87 * 100 = 91%

Now as opposed to .7 and 0.9 mm walls i am down to .05mm consistantly which has made me happier.

Put the new setting into Cura and over extrusion, lifting from bed and mainly the swearing has been rectified.

So hopefully I should be able to print a little faster

The Link I used was this, http://www.thingiverse.com/thing:3397997
Look at the readme.txt for the manual.

I appreciate most of you know this already, but just incase someone is struggling it may help them.

[Stephen6309]

@paulhew Is it grinding the filament? On my printer I had to increase the hotend temperature a bit.

[Veti]

i had the same thing happen on my bmg. had to reduce to about 90% for the correct accuracy.
I never worked out where that difference came from between the correct e steps and the resulting flow.