A new fix for the spring switch/intermittent fire problem:
I was putzing around trying to figure out how to fix this. I'm on my second spring switch and was starting to have the same intermittent fire problems as the first.
Thanks to a magnifying glass, some spare time, and advanced spatial cognition I finally sussed out what was working, what wasn't, and a solution.
The 510 connector is a post in a tube with a gasket. The post has linear travel.
The switch board has a compression spring to connect to this post and complete a circuit waiting for a press of the button.
The spring has a bit of plastic straw as insulator.
AND THERE IS THE MURDERER, THE CULPRIT! In other words, the problem.
Compression springs are handy things. They push things apart. In this case they provide a pretty secure, easy to replace connection for the circuit. But, the lighter the spring the more it wants to go sideways under load. Where we want a straight line between circuit board and 510 connector, once the straw insulator gets wonky(that's a technical term for those understanding advanced spatial cognition) the spring goes sideways. In the middle. Shoves that plastic insulator all around. SHORTS!
No fire. No Joy.
So, let's corral that spring.
What have I got around here? Nope, too big. Nope, too small. Ah! Goldilocks, this one is just right!
1/4 nylon air tubing fits very precisely around the spring. Cut the same length as the original straw. And that wimpy little spring ain't going anywhere but in a straight line anymore.
Now to mitigate the ravages of time.
Take something gentle like an ink pen filler and push the center post of the 510 connector up a bit. Maybe a 16th. It's been pushed down by cartomizers, and atomizers.
Trim 1/2 turn off the top of the spring. It's been abused by now and we want fresh spring.
Put the switch back in the cap. Be careful to line up the spring and connector, and the switch and hole, and push straight in. Secure nut.
Did all that make
sense the way I said it?