Here are the finished disc brakes. I'm showing the rear disc brake again because it now has a different, lighter finish than before. I found Alclad Stainless Steel made it too dark.
In order to get the pattern of eight openings in the front disc brake completed to a high level of detail/finish, I created a pattern which I used to produce a photo-etching mask. I then did a very deep etching, not all the way through the 1.2mm aluminium sheet but enough so that I had good accurate set of shapes which I could then finish off by drilling out and filing.
In order to get the pattern of eight openings in the front disc brake completed to a high level of detail/finish, I created a pattern which I used to produce a photo-etching mask. I then did a very deep etching, not all the way through the 1.2mm aluminium sheet but enough so that I had good accurate set of shapes which I could then finish off by drilling out and filing.