Spring break was a blast.
I was able to finish designing the mod. Here are a few pics.
A few changes from the original design:
1. The most significant change is that I decided to use a common 6ml bottle rather than the specialized 10 ml bottle. The 10ml bottle was originally made by me for prototype purposes and was not a production bottle. Going forward with that will require a mold. Using a 6ml bottle would also benefit users as it's easier to get replacement, because bottles do wear out. But most importantly, the door mechanism for the 10ml bottle did not work as well as I wanted. It was not as convenient to remove and replace the door with that huge 10ml bottle in place. I also did not find too much enthusiasm for the 10ml capacity, in that it's not the main reason why ppl like the mod. On balance, I decided to use a common, off the shelf 6 ml bottle.
2. The firing button is made bigger for better comfort. It will be a machined metal piece, so I'm sure it'll boost the aesthetics. The mod is made with sub ohmers in mind so there will be a ceramic piece where the button meets the contact spring.
3. The door can be taken off and put back very easily. You merely pull it off and push it back on. This is very important to me because I refill a lot and swap batteries a lot. When I used other mods, I find myself not putting the door back on due to laziness. I was also able to solve the play problem.
4. The 510 connector will be made in house with SS, and the mod is designed to accept pretty much all atties.
That's pretty much it as far as significant changes go. You still have your auto fuse for safety. Speaking of safety, there is a silicone piece that insulates the battery from the aluminum housing near the negative terminal. The mod is designed so that it's pretty much impossible to short circuit.