100mmx100mm 6mm aluminium plate/sheet.

[JAZZCNC]

Fair enough Jazz, I was just going off the Aalco datasheets:

Aluminium Alloy - Commercial Alloy - 5083 - 0~H111

...but will trust your expertise and experience and give it a whirl - any hot tips? (No end-mill pun intended).

Wal.

Wal While 6 series does machine better I've never had any trouble machining 5083 series but some grades do machine better than others. The 5083 '0' plate Ali warehouse sells which is a lower grade machines fine. The H22/4 types are better.
I know Metalweb keep H22 because several months ago I machined Gantry sides, Z axis etc for someone and it came from them. To be honest couldn't tell much differance to 6082.!!
Avoid 5005 '0' if possible because that can be a little gummy and hard work.

Nothing special to machining it just plenty of air/coolant and use good cutters. Can't really advise on cutting settings has I tend to use Rippers for roughing and straight flute for Finishing so unless you work similair then won't be much use to you. Also each machine as there own sweet spots so you'll need to play to find what suits your machine best.?