I made this from a $2.00 Alum. nitroglycerin pill can from Wally world.
It runs on a 1000mAh 3.7v CR123 with a 510 atty. A little felt liner in the can so the battery doesn't rattle. I put the battery in button side down and the spring is in the top so that it is easy to change the battery. Just unscrew it and drop the dead one out and drop the new one in, screw it back together and it's good to go for another 4 hours.
(and yes I now know that it looks just like MadVape's "VapeStack")
but I made it before I saw theirs,,,, building it,, that was the fun part.
This pic shows it with a 510 mega and mega cart. I now use it with a polished LR510 and Alum. drip tip.

I made the top from a 1" alum. bar stock that I had. The stock can lid was toooooo short for the switch, spring and atty connector. And I don't have any way to cut threads this fine onto the top. so I cut the lid down and pressed it into the top that I made. I have been using it for about 2 months now and only have to change the batteries about 3 times per day.

My next one will be a VV mod. (parts on order now). I haven't nailed down the batteries for it yet. leaning towards a 7.2 volt 4000 mAh cam-corder battery.
It runs on a 1000mAh 3.7v CR123 with a 510 atty. A little felt liner in the can so the battery doesn't rattle. I put the battery in button side down and the spring is in the top so that it is easy to change the battery. Just unscrew it and drop the dead one out and drop the new one in, screw it back together and it's good to go for another 4 hours.
(and yes I now know that it looks just like MadVape's "VapeStack")
but I made it before I saw theirs,,,, building it,, that was the fun part.
This pic shows it with a 510 mega and mega cart. I now use it with a polished LR510 and Alum. drip tip.


I made the top from a 1" alum. bar stock that I had. The stock can lid was toooooo short for the switch, spring and atty connector. And I don't have any way to cut threads this fine onto the top. so I cut the lid down and pressed it into the top that I made. I have been using it for about 2 months now and only have to change the batteries about 3 times per day.

My next one will be a VV mod. (parts on order now). I haven't nailed down the batteries for it yet. leaning towards a 7.2 volt 4000 mAh cam-corder battery.