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Yes, near real-time voltage control is required, if you are going for rapid or instant heating, or otherwise must use high power (e.g., using an inefficient heat exchanger design, such as a simple tube, or materials, such as glass). But you have to admit that Eterra/PD class convection...

Regarding "simple electric heating element", yes, I was referring to "wire filaments or resistors." To me, this includes all electrical resistance-based heaters -- use of heat generated by passing electrical current through a piece of metal with a known resistance value. The metal can be in...

Maybe the FC name puts women off. If expanding the FC user community and its diversity are priorities, FC might want to consider adopting a more descriptive and neutral (non-confrontational) name, such as one at least mentioning or alluding to vaporizers or vaporization.

I presume you will need a higher power laser than you are currently planning. Like your laser, a magnifying lens can start combustion, but without pushing a good amount of watts (power) from your laser it will take a while. Why not put well-powdered vaping material on thin copper (or other...

Clear_Dome: By "glass on glass," I presume you are referring to a full or optimized glass air path. Earlier in this thread, VTAC rather well characterized the current common use of the term -- as a largely meaningless promotional buzz word, indicative of glass use, with few users ever defining...

So, does all of the inhaled air pass through these few small holes; and does this twice? If so, how hard it is to draw?

Ceramic dust, just like any other kind of particulate dust, is an inhalation hazard. Glass, stainless steel and anything else used in vaporizers is an inhalation hazard as a dust. But here, we are dealing with vaporizer and heater parts, composed of solid material. Any ceramic being used to...

There are now several types of insulation better than still (no convection current) air, i.e. have lower thermal conductivity -- silica aerogel and microporous insulation. This stuff in expensive (but then you only need about 1/4 to 1/3 or less than other types of insulation). I've contacted...

Some misc. comments. With glass, without very good engineering, such as use of very thick glass, failure seems inevitable, whether after years or decades of use or one bad drop on the floor. Having glass parts removable, inspectable, replaceable, etc. is obviously the way to go. I would have...

With the Vapolution being "All Glass" and the original "glass on glass" vaporizer, those following this thread may be interested in the 'What exactly does "glass on glass" mean?' thread I started. Besides inquiring about what "glass on glass" means in terms of vaporizer marketing claims...

Various convection vaporizers claim "glass on glass" design or construction. The term is rarely, if ever, defined and there appears to be no consistency in use of the term. What exactly does this mean, in terms of marketed vaporizers? What should it mean -- what do you assume it means? And...

Obviously, it is best to avoid brass in vapes, if only because it's lead content causes fear, confusion, etc. Zero tolerance and presence of any toxic substance is always best. As far as I am aware, inhalation of lead vapor in brass foundry workers (around open vats of molten brass) and even...

There could be very basic problems, including that any lens would need to have a very short focal length, a fraction of an inch. I presume a convex lens would have be very thick to focus on such a short distance, if such a plastic lens were even feasible. And there would likely be a problem...

Patents, by design (in the Constitution), empower the government, on behalf of the inventor or his sponsor, to enforce a time-limited monopoly on commercial use of (stop others from using) a qualifying invention (what's claimed by the patent). In exchange, the patent fully, publicly discloses...

skippymcware: Regarding PIDs, Auber Instruments has units at the cheapest prices I've seen. See http://auberins.com/index.php?main_page=index&cPath=1 Their basic unit is about $36. They also have an Ebay store. Do you see any reason that these units are not comparable to those often...

Skippy... I am in the process of ordering parts for a few prototype vaporizers I intend to build (and report about to FC) in the next few weeks. My starting point or design goals are much different that yours. I intend to make a heavy metal heat sink-based, passive (inhalation-powered)...