Oh... look!
It's been 'building funny halogen Logs' day again
I'll update this post with more of the details later tonight
ETA: Ok then
This baby was partly inspired by a private conversation about building halogen logs, I had with
@brainiac today, who's working on his own rustic halo unit recently
Apart from managing the glare of the bulb, another problem when placing a halogen heater inside a wooden log body, is the immense heat, a 35w or even 50w bulb radiates and conducts to the wood. Having built halo logs myself at first, that were based on Tobias' MUSA, the question posed itself: why having the hot glass heater cover within the log's body in the first place, when the ground glass joint holding the bulb is extending from the wooden body anyway? Looks good, but serves no real purpose, as it doesn't provide any kind of insulation for the bulb, but heats up the wooden body unnecessarily and thereby looses a lot of heat to conduction.
So maybe a better solution, to place a short heater cover on top of the unit, with the body just housing the wiring, managing the air intake and serving as a handle.
Also stumbled upon some pics some time ago here, from a short lived wooden vape manufacturer, Old City Diffusers/OCD, who produced some beautiful looking wooden vapes back around 2010 or so. One of the units he produced, was kind of a log vape, but with the (non halogen) heater situated on top of the unit, rather than within a heater well and contained within a short glass heater cover, that was essentially a right angle 14mm female socket.
Now... hadn't something like that lying around here, but sorting through my parts, I found the ballon/whip adapter from my defunct Arizer EQ tower, which would do nicely for a proof of concept unit. It's basically a 18mm male joint, set at a 45° angle.
Next I found me an old Misty beech wood body with the wider 30mm bore, that I don't do any longer, a cork, a 35w bulb and some wiring and started to cobble this baby together. Having no real fine mesh at hand, I used an old cut up ELB screen for covering the bulb and also a short piece of 0,3mm ss foil. Would have liked to also cover the bulb itself with the ss foil, but 0,3mm is a bit too thick there, to comfortably fit between the bulb and the glass joint. When my 0,1mm ss foil arrives, I'll give it another try.
Air intake is via 4 holes, drilled into the cork base.
Finding a direct draw stem for use with the vape, I got lucky with my latest slide in all glass stem, as it's front end tube is cut from the 12mm OD test tubes... which fit neatly into the 18mm male joint, as it's cut a bit shorter, than the standard 19/26 joint and therefor a bit wider. 19/23, it is, I would guess.
Now... all that remains is testing
One thing I want to explore is the question, if 35w for the heater are really needed, to make this thing work! If maybe 10w or 20w are sufficient already, when there's not so much heat loss from conduction.
Would also mean, less glare and we could go with a common 1A or 2W wall wart here, instead the fat 3A power brick
So I'll work myself up the voltage scale now, starting with 10w/5,5v, to see, where the vapor starts
Here are some pics from the original
Old City Diffusers' vapes, back in 2010:
ETA2:
Test Results with 12mm OD dd glass slide in stem
10w at 5,5v = get terpene and the vaguest of vapor! Good taste
13w at 6,7v = get good visible vapor already and a nice taste.
15,9w at 7,5v = yup! This is it!
Fat clouds and a nicely gold brown avb, halogen style
So! This is it then. All that's needed are 15-16w, to make this baby sing
35w bulb is vastly overpowered then, at least in this setup here. 20w will do.
Nice coeffect: at just 16w, there is really no brightness issue, to speak of! This is a kevel of brightness, you can simply stare into, without even a twinkel and not even enough, to meaningfully add to the dim, mostly candle lit illumination of my living room
A very far cry from what I had experienced so far with my other halo logs, that had to be run at near full brightness, that really hurt the eyes.
And as the halogen heaters heat up rapidly, there isn't even need to run the unit constantly at 7,5v. You can just turn It down another 3v, and have a very cool looking ambient light standing on your table
Body stays totally cool. You can even touch the glass cover below the 45° angle: it's damned hot, but you won't burn yourself. Cork totally unaffected.
Let's give this a nicer, bit sturdier body and maybe some little tweaks here and there... and this is a very cool vape, I think
This thing is fun!