Thanks again to Mr. Breaktru, I don't think I would have attempted this mod. if it had not been for your pix. and instructions. First. buy extra pipe and caps, your gonna screw a few up. even with a drill press there were a few caps destroyed in the process. extra parts, order a few, well the switches I bought were very large, they didn't look that big on the web site. oh well, I made due. my 510 connection, yea I ruined one of those as well. I wish I would have taken more pix, but this project took longer than I thought. for the positive terminal of the battery I used a center section of a large suction cup cut down to fit snuggly, with a screw in the center for the terminal and then I expoxyed it in the tube once I got it placed in the proper location. with the 18650 battery., All in all, it vapes like a choo choo train, and I love it. I got more switches on the way and plans to build more. I will take step by step pix next time. right now, I need to vape. thanks to everyone who has posted their mod.
Ok, I can't figure out how to insert pix. any help. thanks