Ok, last video today I swear guys.
I, of course, put the thing straight to work.
Next front gantry at 250 .6 DoC…, wish me luck 
Oh, and this does not include a finishing pass.
Very nice finish on the edges
Very nice. Is this 2000watt head?
Nah its a .8kW spindle.
Just did 220 x .6
Bout to run 250 x .7, break that boundry with a beautiful cut… its there.
20 hours of consecutive testing begins now.
I heard cutting aluminum using fast feedrate with a double spiral carbide end mill is the way to go one like this http://toolinghouse.com/ESC1015U.aspx
What I saw was at 20,000 rpm 0.80 (1/16in) pass depth, at 100 in/min (1.6 in/sec) using the 1/4" double spiral carbide bit was beautiful parts. He said the faster the better cut finishes. Also most people run alum way slower than they think they should. They also use a very light cutting oil via a mister (oil here http://www.docs.citgo.com/msds_pi/639401001.pdf). Oil mister here http://www.tricocorp.com/product/md-1200-micro-drop/
The said the best info they found for figuring feeds rates is here.
http://www.harveytool.com/cms/GeneralMachiningGuidelines_17.aspx
And here
http://www.daycounter.com/Calculators/GCode/Feed-Rate-Calculator.phtml