Here are some copper mods I've been working on. There are no wires and the smallest screw used was a #6 (for the pin). All screws are brass. It should have very little voltage drop. My meter shows no drop but I know that's because my meter sucks.
I've changed the bottom button a little since those pics were taken. Rounded it over a bit.
This is what really makes it different. I haven't seen one designed like this before. Not sure if that is a good or bad thing.
The 510 battery connector center post is the switch. When the button on the bottom is pressed, it moves all of the insides up to push the center pin into contact with the center post of the atty. Please give me your opinions on this switch design.
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Benefits...all tanks/etc screw all the way down, no insulators to wear out/break and never any adjusting of a "floating" pin. The "stroke" is somewhat adjustable. There are no springs in the circuit. It's very dependable.
Except for the thread tap, everything was purchased at hardware stores.

I've changed the bottom button a little since those pics were taken. Rounded it over a bit.

This is what really makes it different. I haven't seen one designed like this before. Not sure if that is a good or bad thing.
The 510 battery connector center post is the switch. When the button on the bottom is pressed, it moves all of the insides up to push the center pin into contact with the center post of the atty. Please give me your opinions on this switch design.
Inactive

Active

Benefits...all tanks/etc screw all the way down, no insulators to wear out/break and never any adjusting of a "floating" pin. The "stroke" is somewhat adjustable. There are no springs in the circuit. It's very dependable.
Except for the thread tap, everything was purchased at hardware stores.