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Ball milling glaze


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#21 AtomicAxe

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Posted 21 March 2013 - 11:32 AM

Doc, my photo does bear a resemblance to myself ... since it is a self portrait. :-P

#22 docweathers

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Posted 22 March 2013 - 02:42 PM

I have decided to take my own advice and add an avatar that gives you the proper image of me.Posted Image

Larry

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#23 OffCenter

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Posted 22 March 2013 - 02:55 PM

I have decided to take my own advice and add an avatar that gives you the proper image of me.Posted Image


Wow! That's perfect. That's exactly how I see you.

Jim
E pur si muove.

"But it does move," said Galileo under his breath.

#24 docweathers

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Posted 22 March 2013 - 03:30 PM

Now you understand the pecking order around herePosted Image

more seriously, what is the fastest you can reasonably turn a ball milling jar. I'm trying to figure out the gearing for driving my home built ball mill. it's a lot easier to turn it fast than slow.

Larry

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#25 JBaymore

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Posted 23 March 2013 - 09:22 PM

Now you understand the pecking order around herePosted Image

more seriously, what is the fastest you can reasonably turn a ball milling jar. I'm trying to figure out the gearing for driving my home built ball mill. it's a lot easier to turn it fast than slow.



There is a formula based on the jar diameter.... but I don't have it here in Houston. If someone else does not post it I'll reply when I get back home.

best,

......................john
John Baymore
Immediate Past President; Potters Council
Professor of Ceramics; New Hampshire Insitute of Art

http://www.JohnBaymore.com

#26 docweathers

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Posted 23 March 2013 - 10:58 PM

John

I Googled it. Is this the formula that you are thinking of

Optimum RPM= .65 x Critical speed (cascading action of the media stops)

Critical speed = 265.45/sqrt (Jar I.D. - Media O.D.)

with dimensions in inches.

Thanks

Larry

Larry

Lawrence Weathers

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#27 JBaymore

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Posted 26 March 2013 - 12:51 PM

John

I Googled it. Is this the formula that you are thinking of

Optimum RPM= .65 x Critical speed (cascading action of the media stops)

Critical speed = 265.45/sqrt (Jar I.D. - Media O.D.)

with dimensions in inches.

Thanks

Larry


Larry,

Just got back from Houston NCECA, taught all day yesterday, and now settled in at home. Yes...... that's it.

best,

......................john
John Baymore
Immediate Past President; Potters Council
Professor of Ceramics; New Hampshire Insitute of Art

http://www.JohnBaymore.com

#28 Ben

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Posted 27 March 2013 - 08:16 AM

John

I Googled it. Is this the formula that you are thinking of

Optimum RPM= .65 x Critical speed (cascading action of the media stops)

Critical speed = 265.45/sqrt (Jar I.D. - Media O.D.)

with dimensions in inches.

Thanks

Larry


This is in the Harry Davis book.

#29 trina

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Posted 27 March 2013 - 08:34 AM



What a profile picture, AtomicAxe. I wouldn't want to meet you in a dark alley.

Jim



Now that's the funniest thing I've read all morning. What a profiile picture, OffCenter. I wouldn't want to meet you in a dark alley either!


Marcia H.


In spite of the fact that we all know these pictures bear no resemblance to their owner, they do shape our view of that person. ( yes, I am a psychologist by training)




well that is a relief, as yours looks kinda god like......

#30 docweathers

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Posted 27 March 2013 - 10:49 AM

Trina

I'm glad you have noticed my true identityPosted Image

---

John

Thanks for confirming the formula

Larry

Lawrence Weathers

Gismo Guy

Welded Sculpture
Pottery
Spokane WA





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