Replacement for nichrome coil...

[jxmiller]

Any one heard from jxmiller? How's his test coming?

Been super busy with work lately. Plus I have other mods going on that involve quite a bit of time. I will try to get something going again here shortly. I already told you guys if that heater is in contact with much of anything it will not vape well. It transfers heat very fast due to its size. I tried to suspend it (during my last attempt), and in doing so almost tore off a lead. I was sort of waiting for some other results before I tried again. I think I will try again.

Anyone know where I can get metal tubes in the 1mm range? I would like to be able to bend the material (mildly) and it still retain e ability to transfer fluid (not collapse).

[crazyhorse]

You can look for very small diameter copper cap tube but I think it's impossible to get. The only US supplier I found wants a mill run of at least 100 pounds. Otherwise there's a place in UK that makes very small diameter and then there's China. None respond to inquiries.

Edit: 20 ga hypodermic needles are around 0.88 mm

[SurfVortex]

Sorry for the long time between posts.....
Was messing around with the little heater and found that less is more in that a small wrap of wick around the actual heated portion is what does the trick. Unfortunately, the trick appears to be small, just doesn't produce much vapor. In my experiments, had to wait a long time for it to start giving off vapor(1min.+ like q4mk's report), even then it wasn't much. Then... it developed a crack going longitudinally down the middle. Then, my power supply went hoooky. So, now I've beefed up my power supply, just waiting for the batt.s to charge. Going to see if the heater will work even w/a crack, don't feel like I need to treat it delicately any more. Good Luck to everyone in this, I know we're close!

[Wireguy]

Anyone know where I can get metal tubes in the 1mm range? I would like to be able to bend the material (mildly) and it still retain e ability to transfer fluid (not collapse).

Hobby shops carry flats angle and tubes all under 1/4 inch. I'm not sure how small they go though. I was looking for 1/4 inch. I think they had brass, copper and aluminum.

Saw the exact same display in several stores.

[Silverthorn181]

I would like to be able to bend the material (mildly) and it still retain e ability to transfer fluid (not collapse).

Dead simple. Block one end of the tube, fill with water, block the other end. Freeze the water and bend to your hearts content!! You won't crush it as long as the ice holds the inside form. (in other words stop when it has melted)

[jericoriver]

You can look for very small diameter copper cap tube but I think it's impossible to get. The only US supplier I found wants a mill run of at least 100 pounds. Otherwise there's a place in UK that makes very small diameter and then there's China. None respond to inquiries.

Edit: 20 ga hypodermic needles are around 0.88 mm

Captube can be bought at most all a/c, refrig. supply houses. It's ususlly in about 10' rolls usually in several different sizes.

[crazyhorse]

If he wants a metal tube with an ID of 1 mm, no problem.

If he wants an OD of 1 mm, he won't find it at a HVAC store. Slightly less than 2 mm OD is about as small as it comes for HVAC.

[kwcharlie]

Dead simple. Block one end of the tube, fill with water, block the other end. Freeze the water and bend to your hearts content!! You won't crush it as long as the ice holds the inside form. (in other words stop when it has melted)

add soap to water, fine sand or clay will work too, pack hard

[jxmiller]

Thanks for the replies guys. I think in the end I can simply get a larger diameter tube (which would still have to be on the small side (1mm to 3mm)) and crimp the tip until the desired size is achieved.

What's this for? 2 things.

1.) An airflow tube.
2.) A tube to pump juice onto the atomizer (ceramic or coil).

If the silica is messing up the vapor performance then it should not be there. Idea is to soak the ceramic & drain so that the ceramic has liquid on it but it does not have anything else touching it to absorb heat.

The problem then becomes (as stated earlier) if the airflow across the ceramic causes the temp to drop too much. Unlike conventional coils the coils inside the ceramic are enclosed and cannot benefit from air (oxygen) passing across.

In conventional atomizers you can visually see the coils glow MUCH stronger if you turn it on and blow inside. So airflow is a benefit to raw coils, but most likely will hurt the performance of these ceramic heaters.

My hope is in how they function. If the current draw is dependent on temp then it should quickly adjust as airflow cools it down to get to an equilibrium of some sort (would be drawing more current though but ohh well).


Anyways. Thems thar are mah thoughts.

[chc]

Just finished rereading this thread and want to commend you guys on the work so far, looks promising.
I did some googling and came across these porous ceramic cups that can be custom made(min order I'm sure). I sent them an inquiry, we'll see what happens.
Here is the link to some specs on them. Maybe something that would help here.
Possibly putting the coil and wick directly into the cup? Just throwing some ideas out there.