Components into Sub-Assemblies:
As with anything mechanical, a Tattoo Machine contains various components that when coupled together, they'll form a sub-assembly...
...in this case these's two sets of sub-assemblies that will each form a Top & Bottom Binding Post.
On a standard DC Coil Machine, both of these Binding Posts are for the (+) Positive connection & so will have some form of Insulators to stop any short circuiting to the Frame which is the (-) Negative connection.
Top Binding Posts are obviously at the "top" of the Machine & contain the Contact Screw, which in my case are always made of Sterling Silver.
Bottom Binding Posts are typically positioned at the bottom of a Frame & is where the Clip Cord will go.
I like to have them all assembled & ready to go when I start the final assembly into a complete Machine.
And that same basic principle also applies to the Springs...
...Top Spring, Back Spring & the Armature when put together form another sub-assembly.
So here's a couple of photos showing the Spring sets being marked out & cut.
|Lots of sub-assemblies...Frames, Binding Posts & Springs.
|Top & Back Springs all cut, their holes punched & all sharp edges linished smooth.