I've used the method in blackjacks youtube , but on large pieces it takes forever.
I reckon a CNC mill could be set up to do the job when large area's are required.

The stockholders call it circle pattern, most of them keep it, you may be able to get a small quantity here,
Or Try asc metals in woverhampton.

I dunno... you type in the correct term and bu99er all comes up![]()




