Distorted Ornaments
Moderators: Brad Walker, Tony Smith
Distorted Ornaments
Hi folks!
I've been making a lot of ornaments recently and some of them distort significantly. E.g., on a 15" shelf, I had one large snowflake (6 triangles, 3 on bottom, 3 overlapped on top) in the centre, and six smaller ones around the perimeter of the shelf. 3 were perfect, the other 3 were distorted, as if some of the parts got up and walked around. All ornaments were glued to wax paper, and I used the Orton vent for the whole cycle. Also, I made 3 other single layer ornaments where I added a small piece of clear to the bottom and sandwiched hi-temp wire as a hook. Again, these were glued, 2 out 3 shifted significantly, 1 was good.
Does anybody know what the cause of the shifting is?
Cheers,
Suzan
I've been making a lot of ornaments recently and some of them distort significantly. E.g., on a 15" shelf, I had one large snowflake (6 triangles, 3 on bottom, 3 overlapped on top) in the centre, and six smaller ones around the perimeter of the shelf. 3 were perfect, the other 3 were distorted, as if some of the parts got up and walked around. All ornaments were glued to wax paper, and I used the Orton vent for the whole cycle. Also, I made 3 other single layer ornaments where I added a small piece of clear to the bottom and sandwiched hi-temp wire as a hook. Again, these were glued, 2 out 3 shifted significantly, 1 was good.
Does anybody know what the cause of the shifting is?
Cheers,
Suzan
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Suzan,
The short answer is... shift happens.
I would hazard a guess that you made the assumption that the glue would hold the pieces in place until they reached fusing temperature. In reality the glue probably burns off at about 400 to 600F and the pieces, not having anything to fix them in place fell willy-nilly... or at least where gravity dictated.
Solution? Place pieces so that they will overlap properly when they slump.
Best guess I can make.
I agree that a photo would help.
Cheers,
Bob
The short answer is... shift happens.
I would hazard a guess that you made the assumption that the glue would hold the pieces in place until they reached fusing temperature. In reality the glue probably burns off at about 400 to 600F and the pieces, not having anything to fix them in place fell willy-nilly... or at least where gravity dictated.
Solution? Place pieces so that they will overlap properly when they slump.
Best guess I can make.
I agree that a photo would help.
Cheers,
Bob

P.S I also agree with the poltergeist theory. It sometimes can be the only answer.Lia
I've had small pieces jump across the shelf an inch or so a couple times. I think it happened when the pieces were small and I had too much glue under them. When the glue heated, it suddenly bubbled or gassed and threw the piece. That's my theory, anyway. Poltergeists are another theory that had possibilty.
That seems possible. I had made up 3 shelves of ornaments, and in some cases, I was using undiluted glue, and fairly thickly, on others I used a small amount of straight glue, and again on others, the glue was diluted, since I was also applying frit on some ornaments.
I'll try a few tests and report back!
I'll try a few tests and report back!
I did another batch of fifteen ornaments on three shelves, using only diluted glue & wax paper, and one test piece where I slathered on the glue. The test piece came out fine, and three of the fifteen ornaments were distorted.
But then I suspected my Orton Vent. I noticed that it vibrates the shelves a little, so I tried yet another batch of 15 without using the vent, and they all came out fine.
There were fumes from the wax paper initially, but they disappeared after a few hours; just closed the studio door (in basement) and the fumes didn't make it upstairs.
Cheers,
Suzan
But then I suspected my Orton Vent. I noticed that it vibrates the shelves a little, so I tried yet another batch of 15 without using the vent, and they all came out fine.
There were fumes from the wax paper initially, but they disappeared after a few hours; just closed the studio door (in basement) and the fumes didn't make it upstairs.
Cheers,
Suzan

candles?Lia Howe wrote:PLEASE don't just close the door to contain the fumes. VENT them outside. It may seem that the smell goes away but it really doesn't. PLEASE err on the side of caution. A stove hood over your kiln (vented outside) may give you the suction you need. This is a cheap way to provide you with at least some ventalation. My husband went the other way. In my studio I have to wear a seatbelt to stay in my chair. He is really sensitive to odours. My kilns are also outside in my studio. I was also reminded by someone that burned off wax paper creates vapours of wax. Breathing that in can't be good. I have had lots of teachers really encourage studio safety. You can't work at what you love if oyur health won't let you.Lia