Magnetic switch for bottom fore mod

[asdaq]

I meant the nickel plated negative end of the cell, sorry. So what returns the button Az?

 

[WillyB]

I meant the nickel plated negative end of the cell, sorry.

And that is exactly what I was talking about.

 

[AzPlumber]

I meant the nickel plated negative end of the cell, sorry. So what returns the button Az?

The spring returns the button but it is not a part of the electrical circuit.

 

[asdaq]

Gotcha Willy, it was 4am. And not being part of the circuit the spring won't likely get hot enough in time to collapse and release the positive end. Calling it a hotspring is just too optimistic.

I still don't see how that spring returns the button, the only moving part I can see is the button itself.

 

[AzPlumber]

Everything moves except for the collar with threads.

 

[asdaq]

Hang on a minute. The OP's pics show not firing:

And firing:

And all that moves is the button with the post, so the post can extend through the center, which it is not doing here:

All that is left is the switch base, threaded to the mod, safety ring threaded to switch base, the plastic spacer and the spring. the spring is compressed against the battery the whole time and doesn't move when fired.

Sound good?

 

[AzPlumber]

asdaq the second pictures shows the button in the locked position. The button has been screwed in and the switch will not move/activate. Give me a minute and i will post pics

 

[AzPlumber]

The whole assembly slides in the collar


This is in the open position


This is in the fire position

 

[asdaq]

Ahhh thanks Az, I had it all wrong, forget my whole magnet plan too.

 

[bzmotoninja83]

i have been in talks with a machinist friend of mine to see if we cant fabricate the slidey nickel "button" in a more magnetic material. this way, i can use two opposing magnets. and, yes, i didnt show a pic of how the switch moves because..... well........ i dont have an excuse for that...... i do have some more pics tho.

switch locked

switched unlocked

switch unlocked, threaded to device

the "switch" threads into the nickel nub thing. there is a SS ring that it drops into before the ring is threaded into the bottom of the device.

 

[bzmotoninja83]

Hang on a minute. The OP's pics show not firing:

And firing:

And all that moves is the button with the post, so the post can extend through the center, which it is not doing here:

All that is left is the switch base, threaded to the mod, safety ring threaded to switch base, the plastic spacer and the spring. the spring is compressed against the battery the whole time and doesn't move when fired.

Sound good?

Just had a light bulb go off in my head while reading another thread. since the switch button isnt magnetic and the slidey piece is sorta magnetic, im going to shave a little bit of the threaded section, the nub part, down for clearance. then, solder a neodymium disk to the base. that way it wont move. then i can just put a magnet on the battery and go. the only fumble with this will be remembering what side is N/S with the magnet but its not going to be a game stopper for me. Hopefilly i can find my soldering iron here in a few days.

Waht do yall think?


the parts im talking about is the first pic. shave it down a smidge or three, solder magnet disk to it, and go.

 

[asdaq]

Heat destroys neodymium magnets so they don't take to soldering well. You could get a ring to fit under the plastic piece and it would stay put, but the one on the battery side has no reason not to flip or accidentally touch the sides.

 

[Scubabatdan]

Heat destroys neodymium magnets so they don't take to soldering well. You could get a ring to fit under the plastic piece and it would stay put, but the one on the battery side has no reason not to flip or accidentally touch the sides.

Pressed into a PVC or delrin washer would work. It is what I use.
Dan

 

[asdaq]

Yeah, encasing it in plastic could be good. As long as there is nothing to catch on in the battery tube.

 

[bzmotoninja83]

Didn't know that about the heat. Just that I read it somewhere last night. What I might have to do is shave the nub down flush to have a total of two plastic/delrin washers. One on the battery. Another thing I just thought about is, since I can't solder a magnet, I could however solder a washer that is magnetic to the switch base and then place the magnet on the base.
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