ericsf
off to a rocking start
Member since October 2017
Posts: 1
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Post by ericsf on Oct 5, 2017 12:44:19 GMT -5
Hi! I'm new to the forum. I'm a hobbist potter (I make cups and bowls and stuff from clay). I've been thinking about whether it would be possible to use a rock tumbling technique to soften or polish unglazed parts of ceramic forms without breaking the piece. For sake of example, consider a teacup without a handle, glazed on the inside and unglazed on the outside.
I've searched around and have found very little information about tumbling ceramics. I've found people tumbling tile shards but nothing else.
I have no experience with tumbling and no equipment. I thought I might ask your advice before proceeding in an experiment.
Is it possible to tumble something like a stoneware teacup without it breaking? I was thinking that vibratory tumbling would be ideal.
Do you think the result would be interesting? Could I perhaps simulate tumbling with sandpaper (or something else) as a low cost/effort trial?
Thanks! Eric
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Wooferhound
Cave Dweller
Lortone QT66 and 3A
Member since December 2016
Posts: 1,424
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Post by Wooferhound on Oct 5, 2017 14:24:54 GMT -5
What kind of Clay are you using ?
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Mark K
Cave Dweller
Member since April 2012
Posts: 2,600
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Post by Mark K on Oct 5, 2017 20:37:06 GMT -5
I think you should try an experiment. Naturally you would use a low value item. We are big on experimenting here. I think that a large rotary with lots of buffer would be best. Slower rotation I suspect would be best.
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Wooferhound
Cave Dweller
Lortone QT66 and 3A
Member since December 2016
Posts: 1,424
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Post by Wooferhound on Oct 6, 2017 8:49:02 GMT -5
Tempting me to bust-up a flower pot and give it a roll in the tumbler. If you are tumbling large pieces like a coffee cup, you would need at least a 12 pound barrel. The glazed interior might not keep it's shine in the process.
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