Hi all
Has anyone got any good links to sites that explain what the various symbols used on engineering plans and designs mean.
Specifically, I've got a couple of the 'Workshop Practice' books and on turned and bored parts they often have 2 symbols on the plan....
The first is 2 circles, one inside of the other
The second is what looks like a small bung or cork (like those use to plug test tubes)
I'm guessing one of the symbols means that the bore should be concentric but after that I'm stuck.
Any pointers much appreciated
Cheers
Jim
Has anyone got any good links to sites that explain what the various symbols used on engineering plans and designs mean.
Specifically, I've got a couple of the 'Workshop Practice' books and on turned and bored parts they often have 2 symbols on the plan....
The first is 2 circles, one inside of the other
The second is what looks like a small bung or cork (like those use to plug test tubes)
I'm guessing one of the symbols means that the bore should be concentric but after that I'm stuck.
Any pointers much appreciated
Cheers
Jim