The Pyrex SS hybrid Wick

[Cool_Breeze]

So much reading again tonight. Such fun.

Side note ... you folks talking about 40 and 50 pages ... might want to reconfigure to have maximum posts per page, which is I think 40 on here. I only have 15 pages for this thread ... makes it easier to read.

That's a good idea, Hawkeye. I've used 20 for quite a while. ...might up that.

 

[perlionsmitnick]

I wonder though if in time will the juice burn and gunk up the inside of the glass, and I wonder how hard that would be to clean?

Dan said just slip out the mesh and I'm thinking q=tip without most of the cotton on it to wipe the surface ID.

 

[dsy5]

As for the airflow concerns, if a short tube is used between the coil and wick I don't see how it changes the air flow properties of the atty.

It is a major concern - the airhole cannot be in front of the wick; it simply robs the heat. It takes a lot of heat to get this thing going. In my initial attemps with the fuse, it simply doesn't work well. No matter where you put that airhole you either get paltry vapor, bad taste/throat hit or both. Maybe with the thinner walled tubing, it may solve some of the problems.

 

[dsy5]

Dan said just slip out the mesh and I'm thinking q=tip without most of the cotton on it to wipe the surface ID.

Maybe its the quality of the glass in the fuse I used, but I couldn't remove it with lighter fluid and a toothpick. Seemed to be fused into the glass.

 

[Cool_Breeze]

...ought to dry burn well.

 

[mkhyper1]

Maybe its the quality of the glass in the fuse I used, but I couldn't remove it with lighter fluid and a toothpick. Seemed to be fused into the glass.

Sounds like you baked it into the glass. For health reasons I wouldn't inhale anything not coming off high quality Pyrex or FQ.

 

[orion7319]

Probably will, but easier to replace than the present way.
I figure my 4 feet of tubing will give me over 140 sleeves, that should last a while even if they don't clean up, and changing them often will eliminate thermal failure.

That's a lot of sleeves!

 

[Cool_Breeze]

This is from TGP website as to properties of fused quartz:

Vitreous Silica, in all its forms, offers a variety of properties such as:

•Permeability
•Extreme Hardness
•Very Low Coefficient of Thermal Expansion
•Resistance to High Temperature
•High Chemical Purity
•High Corrosion Resistance
•Extensive Optical Transmission from Ultra-Violet to Infra-Red
•Excellent Electrical Insulation Qualities
•Remarkable Stability Under Atomic Bombardment

The highlighted bit worrires me slightly... But at least my radioactive juice wouldn't contaminate my lungs

I'm not sure how to interpret Resistance to High Temperature. Certainly a material that maintains integrity under high temperature is important.

Also useful would be High Thermal Conductivity which the glass-like materials don't have. That is why I earlier mentioned the Mica paper. It would be great to find an Electrically Non-Conductive material with High Thermal Conductivity, Non-Toxic and able to withstand High Temperature without degradation. Thin like a foil or similar might be good.

 

[BJ43]

Some flat nichrome available at about 8 ohms per ft.
Integrated Nonferrous Metals Company

 

[JazzyTech]

Dan said just slip out the mesh and I'm thinking q=tip without most of the cotton on it to wipe the surface ID.

Perhaps Pipe cleaners? Dental plaque brushes.. they are tiny and available in various sizes

 

[dsy5]

Sounds like you baked it into the glass. For health reasons I wouldn't inhale anything not coming off high quality Pyrex or FQ.

Probably a concern... As it stands, until I get some FQ, I have shelved this project ( I am still going to monitor the thread for great ideas from the other contributers). I am not satified with the taste, vapor or throat hit.

When I do get some I plan to try directing the vapor at the airhole through a bent FQ tube...

 

[mre777]

How do you plan to bend it? Heat it up? Can you do this with FQ?

Also i think even with holes or slits in the glass this is a step forward because it will turn RBA genesis attys into a more user friendly devise.

 

[Lance_Wallen]

all you guys cutting slits and drilling holes. You need to understand something about glass. It has a 'surface tension' similar to a fluid. Any break in the surface creates a weakness or vulnerability and avenue for failure, thermal shock, or heat deformation. Just cutting glass breaks the surface, this is why people flame polish.

Thermal shock on pyrex can end either in a boring way (crack) or in a very exciting way (explosion of glass) in such a tiny piece it wouldn't be overly energetic but if you're test firing without the cap on and looking at it, you could easily take a piece of high velocity glass directly to the eye ball.

Please, for your safety, wear safety glasses when working with the pyrex, especially if it hasn't been flame polished. I'm not sayin, "stop" using it but prepare for the potential failures and protect yourself. As far as it blowing up while you are vaping and how to eliminate the dangers there, I'd recommend perhaps a little SS or cotton or something inside the drip tip to block any potential pyrex shards from shooting 'up' through the drip tip. Though it's a very minor concern that it'd pop and shoot a shard at the exact angle it needs with enough energy to go through the hole and drip tip and into your mouth, having a softer failure on the glass and not realizing it an then subsequently vaping a chamber full of broken glass/glass dust could be an issue

 

[Cjax]

So I just tried to order from here: Fused Quartz Tubing Kept saying my shopping cart was empty. Thought maybe you guys sold them out of that size, so I tried some stuff way too large for our applications and still nothing. Maybe it's because the holiday? I'll shoot them an email in a couple days and get a quote on having them cut it to a more manageable size (for shipping's sake). Got my eye planted on this thread.

 

[dsy5]

Has anyone ordered from Technical Glass Products yet? I was wondering what the shipping costs are. It would seem a waste to order a 4ft length for $5.00 and have to pay 4 times that to have it shipped! Might as well order 40 feet of it, if the shipping isn't that much more and pass it around. Did I hear co-op?...

 

[dsy5]

So I just tried to order from here: Fused Quartz TubingI'll shoot them an email in a couple days and get a quote on having them cut it to a more manageable size (for shipping's sake). Got my eye planted on this thread.

Keep us posted on their reply.

 

[gdeal]

I don't have the materials on hand to test this yet, but this is what I am thinking about to go after air-flow issues:

Three separate chambers. The end of the tube in the vape chamber is aligned with the air intake. Not drawn to size.....

 

[BuzzKilla]

Three separate chambers. The end of the tube in the vape chamber is aligned with the air intake. Not drawn to size.....

real progress!

I've done my own CAD sketches, concept is very similar.
we need someone with the tooling that can get this to take off!

 

[TBinAZ]

I received a reply back this morning regarding my order. Not much to add just yet, but they do offer USPS shipping as an option. I replied back with more questions regarding shorter lengths and actual shipping costs involved. They are on holiday break, so not sure when I will hear back. I will post any info I receive.

Keep us posted on their reply.

 

[bapgood]

It is a major concern - the airhole cannot be in front of the wick; it simply robs the heat. It takes a lot of heat to get this thing going. In my initial attemps with the fuse, it simply doesn't work well. No matter where you put that airhole you either get paltry vapor, bad taste/throat hit or both. Maybe with the thinner walled tubing, it may solve some of the problems.

To be honest I'm not that familiar with all the different atty designs and which one the different people are using when post test results. However generally speaking if the glass eliminates hot spots/etc, then an air hole is only needed to evacuate the vaporized fluid. That is why I am curious about a carbed setup, close a vent hole with finger while applying power to create vapor and then release to evacuate vapor. But I agree air running over the coil while heating the coil will cool it and not be optimal.