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Check out the digital air heaters (solder rework stations) at CircuitSpecialists.com, such as http://www.circuitspecialists.com/prod.itml/icOid/7343 It has a digital controlled temperature hot air gun, with full air flow display and adjustment, readily adapted nozzles (with many others also...

Now if MJ were legalized, with this being a very high value and profit product, many processes we dismiss as too complex could be adapted for industrial-scale purification. Any real chemists out there? Or has anyone reviewed the scientific literature on THC purification methods? Check out...

I think these products are too complex and need to be discussed and reviewed in text format. And practically, a poll would be very difficult to do. For example, with FC members all anonymous, there would be no way of stopping gaming of the system (vendors and others signing up with multiple...

For vaporization, a piece could be placed on top of or mixed with a minimal amount of herb prepared normally for vaporization, or placed on a minimal bed of already-vaped herb. With the sfuff reported to contain 53% THC vs. 45% for seived hash, it only provides a marginal increase in purity...

What causes the most degradation of active components is oxidation. Freezing is a good way of slowing oxidation, and that's the main point for doing it. A small container packed with very fine powder has much less air (oxygen) content than a larger one containing the same amount of...

There are no simply and practical ways of extracting oil, much less high-purity cannabinoids (and forget about purifying THC from cannabinoids), from plant material, and particularly not at the small scales we are talking about. A check of recent scientific articles should show some current...

Skippy and Hippie Dickie: Both of you are mentioning problems with heating element isolation/insulation. Something to consider is use of a heat-conducting (relatively, for a ceramic), electrically-insulating, high-purity alumina (inert, nontoxic) ceramic adhesive (the mix the powder with...

And keep in mind, that besides a wide variety of cannabinoids, this is just a small portion (probably at very best 15-20%) of material you are also inhaling -- a load of other plant organics and any contaminants present. This includes a wide variety of essential oils, sterols, terpenes, waxes...

Are special retainer clip pliers needed to insert the clips? Or can they be compressed and inserted using using ones fingers, pliers or other standard tools?

You could increase efficiency very simply, and reduce the difference between your thermocouple temperature and the temperature of heated air, by wrapping the heating pipe in aluminum foil (which certainly is safe at the common oven temperatures it will be exposed to). With your heater now...

I concur that you should seriously consider the Magic Flight Launch Box. It is also much cheaper than the PD and other alternatives. Otherwise, if you want to make your own stealthy hot-box/whip-type convection vaporizer (although using it might cause smells) that will never be noticed in a...

Maybe, it's time for a new main FC Forum (one that would permanently host multiple ongoing threads) to host these discussions. Perhaps, it could have a title along the lines of "Hobbyists Discussion," "Building Your Own Vaporizer," "Technical/Engineering Aspects," etc. Doing this would...

The combined heater/output steel pipe looks to be very sturdily bolted down. But all of that high heat-conducting copper being used for this is probably acting as a major heat sink. With your goal being rapid, near real-time temperature control, you probably should insert some insulation...

Although you need to be mindful of any warrantee concerns, I recall prior postings suggesting some relatively innocuous and simple ways to incrementally increase the operating temperature of your PD, without going to higher voltage (switching to a different power supply). Notably, any type of...

I have a rectangular central heat sink boxed in with air flowing around it on both sides (a very simple design). I am using a 3/8" x 2" square cartridge heater (3 sq. inches exposed surface) inserted in a milled slot in a 2" x 1" x 1/2" pure copper bar, with this covered by a 1/8" inch copper...

From what I recall from pharmacology and physiology texts, by the time any aerosol particles (including liquid vapors) small enough in size reach the small sacs (alveoli) in the lungs, deposition on the alveoli membrane and diffusion through it and into the blood stream happens rather quickly...

For any wiring, I use high-purity oxygen-free copper -- standard good grade multi-stranded copper speaker wire, also designed for high current flow. I use naked wired, stripped of plastic, for any use within the vaporizer. At low power (<12 volt DC, <2 amps), I don't see the need for such...

Skippy and Hippie: With all of this discussion of voltage, power levels and heating elements, I will add some information about the prototype vaporizer I am slowly building. I am not yet ready to fully discuss or answer questions about this vaporizer (it's too early in R&D; I've only just...

With the temperature of the resistance element at most reaching 420?F, and wanting heater air output temperature to be about no more than 50-60?F less than this (which considering inevitable heat loss from convection and radiation is not that much less than the heating element), your heat...