I hope this isn’t all too discouraging…if you truly believe in your idea I wouldn’t give up on it just because there’s more work to be done, but you absolutely should look more at the companies and devices that have come and gone before as well as what the best/most used and recommended stuff out there is right now.
I’ve worked on some designs myself, and some of them even include multi-chamber designs. Not exactly like yours since I have no interest in nicotine juice and concentrates would be secondary for me, but neither of us is the first to try multiple chambers and by themselves they haven’t been enough to make or break a product.
I haven’t produced anything because I don’t have the money or knowledge to design the electronics I’d need and make a functional prototype. I am also concerned that while the potential market is huge the actual market is not yet, so even if you or I design something amazing it may not be successful.
I also want to add to the caution on materials. Yes many mass-produced vaporizers use materials like silicone in the air/vapor path, but they do affect the flavor especially when they’re dirty (which is likely every time after the first time they’re used).
I also worry a bit about what might be coming off of materials like that and straight into my lungs over many uses…this may not be a well founded concern in this case, but in general it is a good thing to consider.
I really don’t know whether the average person would notice or care about your material choices, whether or not their current preference for smoking has much to do with the bad flavor that comes from dirty silicone and other common materials, but you should know that most people around here have a strong preference for glass, metal, ceramic and other materials that they can’t taste by themselves and that can be thoroughly cleaned.
If you move forward with this project I really do wish you luck and hope to see you release something great, and if you’re in the middle of giving up on a dream you’ve put a lot of work into because you’re no longer confident in it, I’m sorry.
I hope you do a bit more research before you make a final decision, but I’d hate to see you waste years and bankrupt yourself chasing a design that may not be up to par yet in a market where some excellent designs haven’t been enough to keep the companies producing them afloat.
I’d also hate to see you give up if you’re close to producing something great, but I think you’ll have to take a step back and compare what you have and what you can do with it to what else is out there before you’ll know for sure where you stand.
Whichever way you go, good luck.