My first inline (NEED HELP ON WELDS)

[Ben 'Spice' Crowley]

Or should I say my first to make it out of the flame, I have attempted an inline 4 times, 3 off reverse engineering, the 4th off the tips in the thread on here and the advice from the scientific site linked in it. In particular the ring seal section. thanks to the tips I read I pulled off a darned nice looking inline imho


After making my inline I went crazy with tube maria's and made some sections for a scientific looking piece.

I am waiting to weld it all together because I need to make about 4 or five more parts (the two short pieces are going to be a duel stem connected by two discs.


AND I DESPERATLEY NEED ANY WELDING ADVICE AVAILABLE. MY WELDS SUCK AND I DONT WANT TO LOOSE THIS PIECE SO FAR INTO IT.

[CripSkillz]

stick the welds, bridge it up , heat it puff it out heat it up and make sure its smooth... just like puttin on a blo tube.. your ring seal looks good..

[Ben 'Spice' Crowley]

thanks, I am going to practice on a bunch of spare glass so I don't ef up the pieces I like.

when you say like putting on a blow tube I still am not sure of that procedure. as you can see in the second pic, my blowtube weld....well it blows.

and to think at one time I couldn't put glass in the flame with out it cracking...

[Frankie Hess]

I usually just do one touch welds with clear to clear welds.

Get that shit rippin hot, just the lips, then touch them together and slightly pull it apart to thin out the wall and make it the same thickness as the glass around it. Done

Hope this helps.

[Ben 'Spice' Crowley]

ill give it a shot, thanks.

[Johan]

I like to heat my welds one side at a time. Basically heat both lips and connect. let cool slightly then with a pin poit oxy flame blast one of the four sides until the glass flows then go to the opposite side of weld and repeat, then top ...then bottom and then maybe the entire weld and puff to even everythuing out.

[Ben 'Spice' Crowley]

it's the puff that i usually mes up on, am I going for a big puff or a real slight and gentle puff. and my supports are to be cold sealed?

[VED]

bridging needs to be welded on good, cold seals will crack off under the weight. when your doing your bidges if it is taking u along time to get them set go back and heat up the welded area so it doesnt crack. makes sure everything is locked into place with bridges and the you can work the weld as much as necessary.

[Ben 'Spice' Crowley]

so if I was going to put some bridges on these pieces to hold them would I be welding to the flat parts or a maria or does it matter?

[VED]

with bridges i like to put them on the blowtubes or points or some area where i can cover up the mark. what i do is heat up a little spot on my blowtube/ handle and stick a peice of 5 mm rod (4 inches or so long what ever is necessry) to it, make sure its a good weld so it doesnt crack off. now u have something to weld to. brige your sections to the peice of rod and then you can work the weld. make sure the rod u use for the bridge is thick enough to support the weight of the peice while the weld is hot and the sections want to move, if not they will break and that create a mess., here is pic of t funk working with some bridges in place
http://www.glasspipes.org/Img202114_WOOF_Img202114_evan-big_pc_019.asp

[ALIEN!]

I never use bridges, though for some crazy stuff I could see it being necessary. Stick em together white hot, let it stiffen but not cool, then with a razor hot flame, heat up one section at a time, teeny little puffs when it gets all liquidy, keep working that spot till its dank then move a 5th turn or so, keep going around till its done, just try not to get the whole weld hot, this way you dont have to worry bout stretch marks/divitrification.

Also, get a blow hose and swivel setup, 25 shipped from generations. Makes welding alot easier. I learned how valuable a blow tube/swivel is doing neon, its the bomb!:bang:

oh yeah, and your ring weld looks phab, better than mine for sure, I dont think I do them properly. Got a link to the scientific site you're talking about?

[nodice]

On the dui seal(I think that's what they call it) the one touch is the way to go. When fixing up connections, you shouldn't have to puff into the piece unless you're trying to change its shape. Just make sure the glass you're heating up is faced down...........

[Ben 'Spice' Crowley]

i dont have the link personaly but search inline help and look for the link posted by jr23

[jr23]

http://www.ecu.edu/glassblowing/gb.htm There you go somtimes its down bro but this site is a little jem.

[jr23]

Once you get the seals down its just about repetition. A ashcatcher or inline pipe has anywhere from 4-? seals and messing just one up screws the pooch! I did the same thing made lots of parts then practiced the assembly. That way if you mess up a few you can put another one together.

[jr23]

I thought they called it a Dewar seal . But I am ignorant about tech stuff and just read the scientific stuff for fun and wish I could go to Salem university!

[Ben 'Spice' Crowley]

I second that about Salem. And rep'd you have been for the sci link

and thanks to who rep' me on this post

[The Cheese]

Playing with ring seals making a double bub today - kinda nerve racking. Like shooting a deer for the first time - heart gets pumpin', sweaty hands, etc... I'm a basketcase some days.

Unless you've got really steady hands, I'd use the bridges. Let's you weld your sections, but also let's you puff out the whole area around the weld so that you're able to get everything nice and even looking. Cooks like little line out too as you puff and shrink. Kinda hard to do without one if you've never done it before. To each his own, just the way that works best for me. Have fun. I've been thinking about doing an in-line on Monday to celebrate the holiday. See if this dub comes out first.

edit...
Kinda like this - after taking the pic I was able to work that weld back even after playing with it a bit rather than being all wonky.
http://www.glasspipe.biz/images/100_2888.JPG

Good luck.

[nodice]

I thought they called it a Dewar seal . But I am ignorant about tech stuff and just read the scientific stuff for fun and wish I could go to Salem university!

I think it's called dui seal, just not sure how ya spell it. Always thought it was called that cause there are two seals in one, like a dual seal....

[CripSkillz]

I saw a DUI seal down by morro bay, , he had a sign balanced on his nose that said dont drink n drive..

[jr23]

well nodice maybe someone that knows how to say it and spell it will chime in. The reason I thought it was called a dewar seal cause its a container in a container. like the lox tanks.

[Swampy]

Quoted from 'TECHNIQUES OF
GLASS MANIPULATION
in Scientific Research
by
JULIUS D. HELDMAN, Ph. D.'

COPYRIGHT, 1946,

snip>>>>>

Dewar seal.

One other type of seal that, though not formally similar, involves the same basic techniques as the triple seal is the Dewar seal.

In this type of seal, two glass tubes, usually coaxial, one inside the other, are sealed together at one end, but without an extension jutting through as in a
ring seal.

In many cases it is feasible to make a ring seal, cutting the extension off close to the seal, rather than the Dewar-type weld.

In setting up a Dewar seal, it is necessary to brace the glass tightly, providing for air-pressure control, and to have the glass rims to be sealed in close and even juxtaposition.

<<<<<snap


Just posting this to help clarify the definition.

Sativa, the original document is a good reference work ;-)