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DIY - fast heat coil regulated

Discussion in 'DIY' started by P.A.M., Jan 3, 2018.

  1. P.A.M.

    P.A.M. Vapo Rising

    Planet Earth, North America
    im throwing this out there having some experience working with wood. Surely others on this forum who do, I see many awesome vapes and stems and accessories hand crafted by many members in this forum .

    I believe all members of FC have a niche of their own , different knowledge and skills that makes all of us unique .

    I've been vaping for year , have seen all the desktops and portable vaporizers thanks to this forum. I haven't tried many vaporizers (my bamboo HI log serves me well , so does my vapcap M , my two weapons of choice for in&out scenarios) but I've been wanting to DIY-build my own wooden vape ever since I started vaporizing. I did try a few other vaporizers prior to find my two current go to vapes.

    I do wish to have a portable log type or more experience , for micro dosing to small bowl size. it seems that the recent heater system of choice utilised in such vapes as the milanna , Zion , iHeat, Splinter , lil'bud and timber , perhaps others , are the next generation of heaters for a superior vaping experience .

    I know there as been questioning about if the heater concept was copied or if business arrangements were made with Ryan from RBT , the original creator of this particular type of heater.

    It's already being done and redone , it's always just a matter of time . is it wrong to give it try ? It might prove difficult to find and source parts to build only 1 units but maybe this thread can sort help sort these things out see it's it worth it to DIY!

    I for one would like to know what the heater consists of and what the parts are. I have weird a few electronics before , i don't doubt it will be problem to make things work .

    This is not to discredit or cooy anyone of their work or concept , it's by pure know how in wood work and lack of knowledge in heaters.. it would be a good project for self enjoyment and proudness of having DIY

    In the Mods I trust , they'll be the judge if this thread shall remain open or not . Lol

    The following is mostly ideas of members I read and stored in a brain cell. This would be for a handheld unit , not a cartridge , but It seems employ the same design .
    -Battery longevity, size
    -Power Switch or button ? Had read a member suggesting a switch once somewhere , wish I'd remember who. All these soecis are member's ideas I'd either agree on or not .
    -Regulated or not?
    -Mouthpiece and Prefered size?

    All I can think of for now , will add more and those of you who know a thing or two or have input , features that would be cool with such a heater , please share !!!! lets put our brains together and see what can become of this. Might help settle things too so that no one feels ripped off or like they are copying others, instead let this DIY be , the CopyVap
    rz, The Beagle and KeroZen like this.
  2. P.A.M.

    P.A.M. Vapo Rising

    Planet Earth, North America
    Ok so I think the best approach to simplify things would be to figure out a harness schematic or wiring diagram of the electronics. We(if anyone else jumps in) could do 1,2 or 3 different diagrams to cover most popular specs people desire. Such as regulated or unregulated , number of battery used and/or other.

    Having those diagrams and the parts names, anyone who feels the DIY syndrome could then possibly create his or her own wooden box or improvise with other materials , layout , etc, to house the electronics/heater .

    The electronic circuit can't be that complicated, it's a matter of knowing that parts are compAtible , length of heater coil perhaps, potentiometer size , power button or switch voltage rating and such. This paragraph is where I need help.

    What does a fast heat coil heater consist of ? Or where are those parts usually used elsewhere on other products other then vaping ?

    What size/rating potentiometer would be required for 18650 batteries ?

    Any recommended switch or button to power on the unit ?

    Other heater options could be reviewed too. The idea of a fast heAting coil with long lasting battery life does sound great . No mod box , simple and pure.
    I personally like a small diameter stem for micro dosing , 10mm inside diameter. It be somewhat more stealth too while out and vaping . Sure people can still see you draw , it could look like a milkshake from a distance , as where a 20mm'ish stem becomes less mistakable for a straw..

    Perhaps I'm the only one interes in this project, lol, I'll do more research on my part , I apologize that I don't have more to go on for now, really winging this project and reaching out rather then just ponder on it with no progress .
    Thanks to all who participate in advance .
    rz and The Beagle like this.
  3. rz

    rz Well-Known Member

    Doing is the best way to learn so kudo's for taking this on. There's a lot to think about though..

    Firstly, I'm not specifically familiar with resistive heating elements for vaporization use but have a bit of other relevant experience.

    Ohms law and power equation are important to understand, or at least keep the math in mind.

    V = I*R

    P=V*I => P = I^2 * R = V^2 / R

    For a BALLPARK evaluation:
    Expect required power usage to be about the 50~80 Watt region. Let's say about 65Watt. Meaning, a single ~3.7V LiPo battery would need to run at -> I=P/V=65/3.7=18 Amps using a coil with resistance of V^2/P= 0.2Ohm. If using 2xLipo in serial (7.4V) , you could get away with about 9A though about 0.85ohm..

    These are ballparks. Theres a lot more to include in the equation like internal resistance, etc.

    Most of these currents would fry a small switch, possibly melt the casing and short the contacts into a frizzle. I would wouldn't want to be holding any LiPos in my hand when that happens. The best way to switch this current on/off would be with a transistor, specifically a MOSFET. Unfortunately thats all I got time for now. Will add a few more cents next time :)
    P.A.M. likes this.
  4. P.A.M.

    P.A.M. Vapo Rising

    Planet Earth, North America
    Thanks @rz ! Indeed , I'm aware of the danger , I won't be randomly trying different configurations in hopes of success. Going to try and stick with tried and tested concepts , for now anyways. Appreciate your time and post, I'll reread and learn from it no doubt !!

    Another fc member directed me to modparts.co.uk to look at their circuit boards and other gear .

    I'm already 2 steps ahead then was 12 hrs ago thanks to you guys .
    rz likes this.
  5. KeroZen

    KeroZen Chronic vapaholic

    On Air
    Nah, anything between 25W and 50W is more than ample enough for on-demand convection. You might use slightly higher power if you have some form of temperature control, like 70W for instance but that's already taxing for most high-discharge cells in a a single-cell setup. The Tubo does the initial ramping up using up to 70W but it can afford it because it's brief AND because the mod box contains code to detect weak cells by measuring excessive voltage sag as well as over-temperature conditions etc.

    I wouldn't use more than 50W in a single unregulated cell setup for safety reasons. The Milaana is about 40W peak (I forgot the figure for mine but I computed it at some point and posted it somewhere) The MVT is lower, I'd say closer to 30W. On the Project I vape at 30W and on the iHeat I use 28W. Those values suit my vaping style using the vapes dry with direct draw and no water filtration.

    People using bubblers tend to need more watts, but 50W is already a lot, you shouldn't need more. At least for a portable. Now if you want to make a desktop vape, the sky is the limit, as you wouldn't use batteries in this case anyway and you could easily pull 1 to 3 KW out of the mains without any problem (that wouldn't make any sense of course as it's about what your average home electric heater pulls)
  6. P.A.M.

    P.A.M. Vapo Rising

    Planet Earth, North America
    Thank you , @KeroZen , Staying under 50W seems quite reasonable. Been re reading other threads and people in general seem to prefer high twenties to low/mid 30's for this type of heater. And those people probably push their units. You always seem to have quality performance and safety in mind . Wish you are around when time for me (or others too I hope!) to try my diy , because I'd definitely like to double check things with you before firing it and blowing myself up !

    Learnt more, I read coil is made from SS316 wire . Not sure how it's spiraled and if those two ends serve as the wires that connect to circuit or if two wires join that spiral "coil" to the circuit ? it's a start :)

    Someone shared this link http://www.modparts.co.uk/boards/381-evolv-dna75-0638183554951.html

    Link is for a DNA circuit board utilized in mod boxes. That one seems abit long or bulky in size, I didn't review sizes, also abit pricey but I'm not looking to sell the vapes, more just build one for myself . If still under cost of already built vape, I'd still be ahead , minus my time true, but that's part of the DIY .. I would prefer abit smaller board and a few bucks less if possible . It's a great idea all the same .

    Would that be cool or is a push buttton fire and knob temp control easier, cost efficient and about the same results a circuit board would provide ?

    I read in a post by Kerozen that with a board it's 2 wires to heater and 2 to battery case / brackets ... rather simple as far as that step goes.. not everybody is comfortable with soldering wires, true, but I'd say lots of people do know someone who does or perhaps could.

    I will draft down a few wiring schemes once having more knowledge and share them here for approval and review.

    It would be nice to have a regulated (temperature or "voltage" control) unit..

    -10 to 14mm stem for more pocket friendly and stealth approach.

    -fast coil heater

    -a box of wood (or other) that incorporates the heater , a battery , and electronics.

    If all 3 above are lined up, it could make for not too bad a size vaporizer. Almost a side by side cartridge and mod box , but instead no 510 connections, just one solid unit.

    Maybe if size permitted a hole to store your stem.. space between heater and battery/circuit could serve as stem keeper perhaps? Probably best to not have battery beside heater, same for circuit board or control pots.

    Will keep reading threads for more info on heater and how it's made.

    Awesome fc!
    KeroZen and boon like this.

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