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Boro Room -- For Boro-related tips, techniques, and questions. |
2012-03-19, 3:22pm
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Senior Member
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For My Fume Buddies
This is pretty much what I'm getting. I'm using gold and silver. The gold doesn't fume very heavy no matter what I do but I do see some pink. (except once I got gold!)
So please critique it. I let pieces like this go through several rounds in the kiln but nothing changes.
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2012-03-19, 3:41pm
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Nice! Looks like mostly silver in this one to me. Is this from leaf or foil? What does the flame look like when you are fuming gold? Getting enough gold fume should not be an issue. Most suggest an oxidizing flame for that but I have much better results with my Mirage when it is neutral.
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2012-03-19, 7:50pm
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Yes, it looks mostly silver to me, too. I'm still trying to figure out my flames. I know my torch is too hot for what I'm trying to do. If I'm lucky I get some slight pink with the gold. Scorpion and an M-20 and 2 5's barely breathing. This is 99% silver.
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2012-03-19, 9:25pm
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Actually it looks to me like your flame was reducing. I would increase the oxygen slightly if you want less white and more color. Looks like your on your way!
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2012-03-19, 9:54pm
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I'm definitely not an expert at fuming, but this is how I do it.
I go wit an oxidizing flame with the gold. I start with a flame that's obviously reduction, then slowly add oxygen. Once there is no longer a reddish tip to the candles I add just a little more, watching for the candles to shrink a bit. I heat my piece until glowing, then move it out to the tip of the cone. Then I burn my gold just above the candles. This is an awkward position. I'm just looking for a light fume. I sometimes have to adjust the oxygen. I wasn't using enough heat when I first started using gold. I was scared I would burn it up. If the receiving piece isn't hot enough it won't stick.
Now I'm ready for the silver. I back off the oxygen until my candles start getting a little bushy, but not enough to get the reddish tips. I burn the silver about a third of the way up the cone with the glass two thirds up. I go for a light fume again. If the flame is too hot the silver will spit chunks on the glass. That leads to blotchy fuming.
I add my cane with the same flame. If you work an oxidizing flame the silver goes away, reduction will take away the gold.
I use the pre-mix minor on my Red Max when I fume. I've tried it on a surface mix minor on a buddies Midrange Plus. I don't know if it was just in my head, but it seemed a lot harder.
I don't get consistent results, so I'm probably doing something wrong. I've only had gold a few months, but find it easier to use than the silver. I cut my metal from coins.
Hope this helps you. Good luck.
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Gary
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2012-03-20, 4:33am
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Pyromaniac
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Looks like heavy silver indeed. Perhaps try going a bit lighter with that.
Also, I find that it takes more time to get good fume with gold, if that helps.
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Chris Scala
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2012-03-20, 5:31am
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Karen James
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Join Date: Mar 22, 2006
Location: Rhode Island
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First, I have to say that my monitor is showing a spectacular opal look Rose. I personally love the way it looks
In your other thread and this one I'm not sure if one point was mentioned, once the gold or silver fuming has been applied to the glass, you want to be sure to encase it. It can burn off if you keep it exposed to the flame. Maybe you are losing some of your gold this way?
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Cricket, Mini CC, Devilbiss MC84 Oxy and NG
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2012-03-20, 8:53am
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Thanks everyone for your input. I'll keep trying....
I'd love to see other's fumed boro. Please post here if you like. If you used gold and silver, please say. That way I can see different results.
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2012-03-20, 9:37am
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Do you get the glass warmed up at all before fuming? For me, especially with gold, I want the glass rod/tube to be slightly warm before I start fuming. Too hot and I find the gold doesn't "stick", ditto with too cold. I also was taught to add a touch of silver before the gold to get it to "stick" as well.
Also I now work on a mirage and find a reducing flame works better than oxidizing. I use to work on a Nortel with a pre-mix on top and would always use a very oxidizing flame. What are your psi settings? I only worked tanked O2 so I can't help you much with concentrators.
Here are some pics of my fumed work. First one is just gold the other two are an example of layering gold and silver. You really want to watch the silver when trying to layer, it's easy to put on too much.
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Ashlea
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2012-03-20, 12:49pm
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All I can say is everyone here has been so giving and helpful. Thank you!
I work with NG so no PSI or it's whatever that comes in the house. I think from everything I'm hearing, people develop a way over time that works for them and the torch/oxygen setup.
I have been getting the glass to a warm glow before applying gold. I will try a bit cooler.
I know if I figure this out I will climb on my rooftop and scream.
Ashlea, your work is incredible! Thanks for sharing.
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2012-03-20, 1:57pm
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Serenity Now!
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Great thread! Beautiful work Ashlea. I'm also intrigued with fuming, but have only tried it a few times. How much silver is too much? Or more pointedly - what is a good amount of silver fume? Thanks Boro peeps...
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2012-03-20, 3:37pm
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Quote:
Originally Posted by Rose
I work with NG so no PSI or it's whatever that comes in the house. I think from everything I'm hearing, people develop a way over time that works for them and the torch/oxygen setup.
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Yup. I dont know of a repeatable way to really describe flame chemistry from torch to torch. Torch designs vary so much and there are so many other variables involved that I think there is no substitute for experimentation. Here is an implosion I did about a year ago that shows yet another color variation for gold fume. I think this was done with 22K leaf.
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2012-03-21, 4:44am
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Wow Larry! Beautiful color.
I tried again last night and for the gold I turned my flame down small and had it just what I would think would be soft and slightly reducing. That worked! I did't get a heavy gold fume yet but better than before. I can't caputure it in a pic and will run the marble thru the kiln more. But I DO see bright green, gold and blues.
On my way!
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2012-03-21, 7:24am
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Post a pic when its cooled. One more for ya.
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2012-03-21, 3:18pm
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Gary
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2012-03-22, 8:30am
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Val, A heavy silver will turn the glass a almost white/ heavy pewter look. You can always burn it off a bit though if you want. It just depends on what I am doing, sometime I want the heavy silver look to make my design look solid white. If you want to layer gold and silver I do a very tiny bit of silver, just enough to make the glass turn a pale yellow. Then gold, a decent amount, then a tiny bit of silver again. Hope that helps.
Also great work Larry and Gary!
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Ashlea
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2012-03-22, 10:40am
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Gold fume
I've been fuming a lot lately. I'm on a oxycon pushing a National M8. I use an oxidizing flame to get the gold on the glass.
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2012-03-22, 11:58am
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Borosapien
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2012-03-22, 12:27pm
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Marcel,your bears, hell all of your stuff is great. I have seen this bear before, it looks like an entire universe in there. Fantastic!!!!! Would you consider a tutorial? I am sure you could sell many copies. Just a thought. Again, great work!
Dave
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2012-03-22, 12:52pm
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I'd definitely spring for a bear tutorial.
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Gary
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2012-03-22, 2:18pm
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Oh Yes, your Bear tut, me three.
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2012-03-22, 5:42pm
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Wow, thanks for all the eye candy! I haven't been back to my torch in a few days as I got sidetracked. Your work is all so inspiring, to say the least!
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2012-03-23, 6:38am
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Borosapien
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It is nice that you like my bears but i won't be making a Tutorial about
my Bears sorry it doesn't feel right it is like selling my soul.
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2012-03-23, 9:33am
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Serenity Now!
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Although, of course, I would also love to learn your techniques, I do admire your ethics and morals, Marcel. Cheers to you...
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Val Lewis
Exclusive distributor for FYI Silver Metal Clay, and excited to be a distributor for CBS Dichroic EXTRACT
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2012-03-23, 12:06pm
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I completely understand if you don't want to make a tutorial. Like I said, it was just a thought. I love your work. I can't wait to see your next piece!
Dave
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2012-03-24, 12:17pm
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So heavy silver makes the white fume. Gold AND silver make green? I got green, YAY. Now, what else can be done with fume? I've seen the gold with white makes pink. I know we can throw some blues in there.......
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2012-03-24, 4:02pm
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Fumed marble
I've gone fume crazy this week.
Dave
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2012-03-25, 1:22pm
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Lookin' great Dave! I had a pendant that was green sitting here waiting to back into the kiln for another round. Well, my cats had other ideas for it I guess. Gone
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2012-03-26, 10:16am
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Karen James
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That means there was some wonderful sparkle to it Rose! Kitties love the shiny stuff
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Cricket, Mini CC, Devilbiss MC84 Oxy and NG
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