Domo,
I watched your video showing the glassware vape. It was very helpful. I can honestly say that my DaVinci MIQGRO produces either nil visible vapour or a barely visible and miniscule cloud of 0.01% of the cloud density produced on that vid. I wouldn't expect something as small as the Da Vinci to produce anywhere near the amount shown but mine produces next to nothing. I am totally underwhelmed with the MIQGRO. It shuts down on high temperature after two or maybe three pulls on it and those pulls do nothing. The battery life is also crap. Basically, it's a toy.
The interesting thing I've also found from an engineering perspective is comparing the vapourising points of the various terpene compounds in weed to the operating temps of the DaVinci. They make no sense at all when compared side by side and then put that comparison against the temp of the DaVinci in my hand. Sure, the DaVinci gets hot to hold but when you think the minimum boiling temp for terpenes is around 160C and yet I can still hold the vape in my hand (just about!) the machine simply isn't getting hot enough to vapourise even the lowest boiling point terpene. If it was getting hot enough then with the poor insulating quality of the construction of the vaper, you'd have to burning the skin off yer hand to hold onto it. Ive worked in Oil and Gas plants all my long life and 60c is about the max at which you can hold your hand on a surface for more than a second or two. 45C is about the HSE max temp for working surfaces. You can't voluntarily keep your hand on a surface at more than 60c. But you can hold the DaVinci (just about!), so ergo, it can't be getting hot enough to anything to the weed in the bowl but "brown it" a bit. None of the physics make any sense on the vapouriser. I really cannot recommend it.
Furthermore, I emptied the bowl after the last trial and looked at trichomes under a microscope. The weed itself was "browned' but the trichomes were 90% intact, mangled and brownish but still clearly unbroken like new lightbulbs! So if the trichomes haven't bursted then how can anyone get a high when using this vape? Doesn't make sense to me. But I'm always open to advice and comment. Sorry, but I can't do micro-photos yet.
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