Anyone making these?

[jane clifton]

Any of you guys making these? The glass tips.
http://www.trippytips.com/index.php/

[Greymatter Glass]

I have a friend who makes tons of them, calls them glass drip tips.

[jane clifton]

I have a local company that is begging me to make them, but I can't seem to get the flare right to work with the "o" ring. I even tried condensing it enough so that I can cut a groove with my ring saw for the o ring but then I worry about cutting all the way through the glass.
Any suggestions?

Thanks

[KT-Old School Glass]

Try using one of the V tools.

[jane clifton]

did that, doesn't get it deep enough to set the gasket.

[Julian]

I'd probably use a combination of marvering and compression (maria style). Not on a V, more like on a narrow inverse U (that is, a piece of steel sticking up that has a little width).

Failing that, make it thicker and cold work a groove. What would be good for this? A stained glass grinder with one of those bits made for create notches for wire wrapping. You'd want to flame polish and anneal after that, though, which sounds like too much work.

[jane clifton]

yeah, thats what I was thinking more a wider piece of steel otherwise I will have to continue with the ring saw which does the same thing as the grinder you were talking about. Wouldn't need to flame polish as the o ring would hide it and it isn't seen once its in the atomizer anyway. Annealing would be done before the saw if thats the only way I can get it done. Don't want to go that route though because these guys are wanting 100's and I don't want to have to cut that many one inch pieces!!!

[Julian]

The stained glass grinder would remove the possibility of cutting through, that's all, since it cuts a set distance. A wooden jig or something could do that for the saw, too.

The reason I suggested flame polishing is for strength... not sure if annealing alone would do it, since the item is essentially heavily scored by the grinding.

[LunacyMountain]

talk to Crip he was making tons of these a while back and tank mods also...I'm sure he has a few tricks up his sleeve....I've made a hand full for my girl but never sold any.... what size are you trying to make the 510's or the 306's?

[kage]

I messed around with these on a v tool, brass might cut deeper and cleaner then graphite. I only made a few and they weren't special. I know what you mean about that grommet, tis a bitch, has to be spot on. Oh yeah and 8mm tubing is what I used, hope that helped

[styles1 torchlife]

If theirs good money to make them you could have a small mold made so they are all the same.

[steak351]

carve it out of a graphite V block then take a small 2 or 3mm graphite rod make the tip of the glasstube warm and roll it in the v while making pressure with the rod inserted into the tube

if you carved it precise the o ring will fit and its really easy to make very much of them in a ahort time

[jane clifton]

now thats a good idea Steak, but i'm not sure what you are talking about carving. Are you talking about the whole profile? The only thing I've ever carved on graphite is my reamer....lol. Don't know that I could do a lot of carving and have it work.

[steak351]

yeah careved with a knife or better a machine out of graphite this is how we make olives for scientific aparatusses when were out of em

[Bunyip]

Umm... Diamond shears? Anyone? At least that's what I would have tried first.

[jane clifton]

tried it, doesn't give a wide enough groove to seat the O ring.

[Greymatter Glass]

... Bandhu's got a trick for this.

IIRC:

Take a sheet of graphite, for these maybe 2x4", score a shallow groove across it's length, closer to one edge than the other.
Get some stiff wire, a 3/32" bead mandrel would probably be about right, but you can vary it as needed.
Bend the ends so they fit over the graphite and the rod rests in the groove. Your're done.


Now you have a tool that will indent a groove in the tubing but won't force a constriction as much as a V marver will. If you need 2 equally spaced grooves you can double up the wire, and get them at the same time.

Heat up your tube so it's pliable, not so hot it constricts on it's own (but you could totally use a small graphite rod to keep it open, that would probably be a really good idea) and roll it square on the rods/wire and you'll have a nice straight indent around the tube.

You can use this same tool to indent a screw thread on glass as well by varying the pitch. You'll have to practice to keep it square, maybe even rig up some kind of jig assembly at first.

And I'm not 100% sure this design is true to what Bandhu's made for his kinetic glass, it may have some unintended revision from myself... but I'm confident that it would work, and is 100% based on what I know of Bandhu's tool.

-Doug

edit: come to think of it, he may have used the back edge of a hacksaw blade or some other thin sheet of metal embedded in graphite for this, not wire... but I think wire would work great, and you could vary the width if not the depth so much....

[jane clifton]

Thanks Doug, good idea!!!

[D.D. Sherpa]

Maybe SCHOTT or CORNING makes a prefab part for a valve or something. I looked breiflly but there are almost 1000 products on their site.

[D.D. Sherpa]

Did you try to Doug's suggestion? Interested in what you came up with!