CNC Machining Question – Tips for Improving Surface Finish

[Muzzer]

What grade of aluminium? Many alloys are horrible to machine. From memory T6061 is good.

I assumed most likely 6061 in the US, as he is new to CNC. Equivalent in terms of availability and popularity would be 6082 T6 in the UK - very similar properties and applications.

This is 6082 machined on a 40 yo machine:
https://www.instagram.com/p/ByKcPFYJ_iQ/?img_index=1

It can be done!

[AndyGuid]

This is 6082 machined on a 40 yo machine:
https://www.instagram.com/p/ByKcPFYJ_iQ/?img_index=1

That finish looks amazing!