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- Subject: pot vapor
-
- On vaporizers...
-
- I've made a couple. They DO give the best high when used correctly.
- The problem is 'correct use', since they generally require more presence
- of mind to operate than a bong or a pipe.
-
- High heat DOES destory most of the THC in smoked pot (estimates vary).
- Vaporizers heat pot gently; the THC molexules decarboxylate and evaporate in
- a whitish smoke that feels like (aaaah) water-mist going down your lungs!
-
- A problem with vaporizers is that only leaves in contact with the heating
- element get hot. Most users, in an effort to heat-up curled leaf edges and
- higher layers of leaf, tend to overheat and consequently burn the stuff. This
- is not disasterous since you are now 'smoking' not 'vaporizing' the pot,
- releasing just as many carcinogenic tars as when you light up a bowl.
-
- Vaporizers sometimes fail to satisfy longtime smokers who associate burning
- lungs with getting high. They distrust the _incredibly_ smooth taste of the
- vapors, and they don't like waiting 20 seconds to 1 minute for each hit.
-
- ANECDOTE ON:
-
- My first vaporizer died after almost 4 hours of constant use at a party.
- After I explained the theory and operation of the device, people loved it!
- They were standing in line (!!) in the kitchen to use this thing. I sat in
- the corner of the room watching them, stoned out of my gourd and filled
- with happy engineering pride at my creation.
-
- ANECDOTE OFF...
-
-
- RECENT QUESTIONS
- >
- >a) must the heat source be electrical, or is it possible to
- >use a butane lighter or other flame source as the heat source?
-
- A butane lighter should work fine... Just build an enclosure around
- it that allows air-flow for the flame, and keeps the 'bowl' high enuf
- above the flame so that you don't begin burning the pot. The 'above-bowl'
- compartment should be sealed-off from the 'flame' compartment.
- A piezo-butane lighter vaporizer would be portable, and heat-up quicker
- than the car-lighter/electric devices. You could even conceal one inside
- a soda-pop can! Imagine pantomiming drinking in public while actually
- inhaling vaporized killer hydrobud! Would some Mech. E. major please
- try to pull this one off?
-
- >
- >b) will vaporization really work with leafy material directly
- >or must some oil preparation be prepared first.
-
- It works, but it is very difficult to heat all of the leaf parts;
- those that don't directly touch the heating element don't release
- their THC. Powdering the pot helps, but in the process, breaks the
- resin glands on the leaves, accelerating the oxidative degredation of
- the cannabinoids. (anyone know how quickly they decompose?)
-
- >
- >c) a previous poster suggested that it was MORE efficient than
- >combustion. if this is true, why would anyone still be smoking?
-
- Because A: Most homebuilt vaporizers are a pain to use when you're high.
- B: Vaporizers are less portable and concealable than pipes.
- C: You have to be MOTIVATED enough to build your own.
- D: Poorly designed vaporizers fail to heat 1/5 to 1/3 of the
- pot leaves, and lose even more to spillage.
-
- I believe that vaporizers are a tremendous business opportunity,
- and that they will explode in popularity as soon as they are com-
- mercially available.
-
-
- PLANS:
-
- I'd refer you to the High Times article "Dr. Lunglife Builds a Better
- Vaporizer", but your local library probably doesn't stock it. :-)
- Designing vaporizers is a lot of fun. It's a great exercise in dealing
- with basic design problems, and solving them with whatever materials are
- available. I'm working on my third device now, and if it works well, I
- will 'publish' plans. As for now, here are some tips you might find
- helpful in your quest.
-
- Typical Supply List:
- 120VAC to 12V(AC or DC) transformer rated at 1.5-2.0 amps
- spring-loaded push-on switch
- sealable plastic box (I used ones for displaying gemstone rocks)
- plastic/rubber tube (to inhale through)
- small alligator clips
- car-lighter element
- something on which to mount the car-lighter element
-
- Design principle:
-
- You want to heat pot/hash to a temperature where the cannabinoids
- evaporate, but where larger 'tar' molecules don't. This is well below the
- temp at which grass burns. You then want to trap those vapors and let them
- accumulate into a nice big hit before you inhale from your device.
- The car-lighter is mounted so that pot can be placed on it. The enclosure
- should be airtight except for two openings, a mouthpiece (or tube) and a
- 'carb' to let air in when you hoover-up the vapors through the mouthpiece.
- The device should be rugged, and easy to use. It is amazing how much of
- a buzzkill it is to have to re-connect shoddy wiring, or scrape-up bits of
- precious fallen pot due to shoddy design! Do it right!
-
- Design problems:
-
- ** You have to connect wires to a heating element that gets hot enough
- to melt solder (which you should NEVER use in a vaporizer (lead poisoning)).
- One solution is to use alligator clips to attach wires to the element, but
- this looks bad and makes for a flaky, breakable design.
- Another is to bend strips of metal to form a 'docking bay' for the lighter
- element that you slide it into. The metal strips should contact the + and -
- parts (sides and bottom) of the element and hold it tightly. Try salvaging
- a flashlight bulb-mount (slide in type) for gripping the sides of the lighter
- element.
- Another solution might be to braze wires directly to the heating element,
- but this makes for difficult replacement when the heating coil burns out.
-
- ** Heat from the element can travel far down the mounting base and
- connecting wires. Be sure that plastic parts that contact thest (like
- the enclosure) are adequately insulated.
-
- ** The top layers/sides of pot on the heating element often don't
- heat-up enough. A possible solution would be a spring-loaded metal or
- ceramic piece that presses the pot down against the hot element. I am
- building a plunger-type press into my next design.
-
- ** Most car lighter elements don't have a rim around the coils high
- enough to keep pot leaves from sliding-off.
- To prevent this, you could bend a strip of metal into a rim for the element,
- but you'd need a brazing torch (0, radio shack) or something similar to
- attach it. Remember, solder is poisonous and won't hold. (a little bonus if
- you buy the brazing torch is that you can use it to dispense nitrous oxide
- canisters :->)
- The easiest solution is to simply search for a lighter element with enough
- of a rim built-in. I know some auto stores sell a type with a 1-2 mm rim,
- which is just enough.
- Another solution is to take the metal cap from those tiny testors model-
- paint jars (1/2in diameter), clean it, and use it as a bowl which contains
- the pot and sits on top of the lighting element. I tried this but got poor
- results because the cap dispersed too much heat.
-
- ** Vapors displace air, therefore as they begin to fill your enclosure,
- they begin to creep out of cracks in box-hinges, etc. This wastes pot :-(
- The only solution I can think of is to make your enclosure air-tight, and to
- keep your mouth on the tube or mouthpiece as you let vapors build. Seal the
- box by lining the edge of your box-cover with rubber. Thin rubber tubing
- that has been slit open along its length makes a wonderful liner.
-
-
- That should be enough info for any creative, intelligent, self-motivated
- pothead to work from. I hope to see postings from people who read this
- and build their own lung-saving vaporizers! It's not that hard; Just DO it!
-
-
- D. S. L.
-
- =============================================================================
-
- From: simon@lsupoz.apana.org.au (Simon Rumble)
- Newsgroups: alt.drugs
- Subject: Vapouriser: How I did it!
- Date: 8 Nov 1993 01:41:46 +1000
- Message-ID: <2bj4vq$d3@lsupoz.apana.org.au>
-
- Well I've been talking about it for ages but always put it off as
- 'too much hassle'. You know what procrastination did for Hamlet
- so I finally got off my bum and did something. I made my
- Vapouriser Mark 1. It's quite primitive but has shown me very
- dramatic results.
-
- First of all, I find a vapouriser hit is perfectly smooth - it's
- almost as if you're taking a toke of nothing - but not quite. The
- smell is very pine-ish, not as dope normally is, that heady, sweet
- smell. The vapour is a pure white smoke that rises up.
-
- A vapouriser hit is also MUCH more efficient than a normal hit from
- a bong, I found. Out of the dope I normally smoke in one session,
- I have had 4 sessions - which is great! More potent, no lung
- burn and no carcinogens. Just good, clean fun :)
-
- So where did I start? Okay - the first thing I did was steal the
- standard cigarette lighter from my Mum's car. This looks like
- this <excuse ascii art>:
-
- ----
- | |
- | |
- --------
- ||
- /__\
-
- You push the little bit on the bottom to push it up and a little
- element pokes out. This is the standard lighter as fitted to most
- non-Volvo cars (in Australia at least). The Volvo ones have a
- slightly different design.
-
- Okay so the next thing I did was work out how to power the thing.
- I got a 12 Volt transformer which was used for my train set in
- my younger days. This is great because it has a variable power
- slider but you could always buy/use a normal transformer and
- attach some sort of knob to regulate. At 12 Volts it's quite
- safe to play around with.
-
- Okay now here is a picture of what it looks like with wires
- attached. I used 4 core telephone cable and just spun two
- pairs together so I had two outputs.
-
- /------ + or - 12V
- ----
- ||
- ----
- | |
- | ---|------ + or - 12V
- --------
- ||
- /__\
-
- Note how the element bit is poking out. I did this by taping it
- poking out on the handle. + or - doesn't matter, just so long as
- you have one of each <derr :)>. The metal 'skirt' around the
- bottom must touch the wire down there. The element prong should
- be bent down and placed as close to the edge of the element as
- possible - with it still sticking it. Because you can't use
- solder or anything, this can be tricky. Make sure the wire is
- twisted and ready to insert. Push the elements (they're flexible)
- aside and stick it in. When the go back into place, they trap
- the wire inside. I used 4 core wire so I was able to put one
- wire on each side of the element - for greater reliabilty.
-
- Now we have to make an enclosure so those precious vapours don't
- go sailing away for the insects to enjoy (ever noticed mozzies
- always come around when you're smoking? :).
-
- I used a "Mount Franklin" mineral water bottle which turned out
- perfect. It has a mouth-piece where the lighter fitted in
- perfectly. You tape it into place. with the wires dangling
- down through the mouthpiece (can be tricky because it's such
- a snug fit.
-
- I then cut the top section from where the bottle starts to
- have straight sides. Next trim the edges so that the
- bottom (mouth end) fits inside the top. Ascii art time
- again.
-
- __
- | |
- / \
- | | Now the mouthpiece of a Mount Franklin water
- | | bottle is exactly the same size as that on a
- | | normal 1.25 Litre bottle of soft drink - this
- | | is important for a snug fit of the lighter.
- |______|
-
- Okay so you cut off the top bit which leaves you with:
-
- /---------- hole to suck through
- --- ---
- | |
- | |
- | |
- |\_ _ _/|
- |-|
- | <----- lighter with wires dangling down to transformer
- -
-
- Okay so there you have it. You place your pot (only a small mount,
- finely chopped so that ALL the pot is in contact with the element)
- and turn on the voltage. You know it's hot enough when a pure
- white smoke comes out of the pot in a thin stream. If it starts
- burning, wait 'till it goes out and try again.
-
- Oh yeah, you see the top is detachable so you can put the pot in :)
-
- Okay so as I said, this is only the Mark 1 so in future I will
- make it more air-tight (possibly through use of kitchen plastic
- ware) and get hold of a decent thermometer to calibrate it to
- the precise temperature required (someone said 97 degrees C?).
-
- Another advantage of this type of setup is it doesn't stink
- out the entire place. The smell is very localised and doesn't
- spread much. It isn't even really an unpleasant smell as
- stale smoke can be.
-
- Okay students: questions?
-
- Well I'll see you all in vapouriser102 - coming soon to a newsgroup
- near you :)
-
- L E G A L I S E
-
- --
- //___/////////////////////////////////////////////////////////////////////////
- /|___ Open mouth. Insert foot. Transmit internationally /
- / ___| H E R M simon@lsupoz.apana.org.au /
- //////////////////////////////////////////////////////////////////////////////
-
-
-