You would also need a check valve to allow air into the bottle to replace the fluid, otherwise when you squeeze the bottle and release it the fluid would get sucked back in to the bottle. Also if the bottle changes temperature you will have flow of juice. My 2 cents...
Rapid prototyping can use several forms 3d printer is one , you cannot make a mold from them that I know of , for injection molding the molds are machined billet stainless steel ( normally ) this is where the cost is
so for 901 , 801 , 510 etc. etc. etc. each one needs its own mold !! $12,000 or so !!
PS: I was looking into the check valve like Scottbee made
If it was the end all be all of personal vapping accessories then I'd be interested at that price...but I would definitely wait until it was well proven. Have you tried looking for a sponsor? There's a lot of money to be made in this industry and if there is a design idea that could be the latest-greatest PV I would think suppliers would be tripping over each other for exclusive rights to it?
Great Idea dude... glad to see a lot of "thinkers" on ECF. One problem I see is the delivery method. Like some mentioned above, its going to cause leakage. *lol* There needs to be some kind of pumping valve or measuring system. Most of the time when you top off, at least for the 901, its about 4-8 drops. If you can get a system that just implements 2-3 drops every time the device is activated, you would have a killer product. Anything more than that and it will be a dud. I can see these selling for around $5 each or like $15 for a 5 pack.
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