|
|
Post by pinemountaintrader on Dec 27, 2005 23:53:42 GMT -5
got a 12 pound rotary for Christmas, does anyone know about what size the largest pieces of rough I should use would be? Also, I know I'll need to calculate my recipes differently with the larger barrel, but is there anything else I should know? I'm thinking it might be a little rougher on the rocks just because they are falling further so maybe need to watch the fragile stuff? Any thoughts? Thanks for any input  |
|
|
|
Post by sandsman1 on Dec 28, 2005 13:59:51 GMT -5
i did alot of rough in model b's and id say i had some 3x3 or better stones go through haha and sometimes as much as 19lb rollin around in each -- the worst that could happen is wear out the motor,, but i had few probs alittle extra oil on the bars and they hummed along just fine
|
|
stefan
Cave Dweller 
Member since January 2005
Posts: 14,113
|
Post by stefan on Dec 28, 2005 14:49:49 GMT -5
Yea 3 or so inches- You want the rocks to cascade (almost like a rolling action) in the tumbler- Too big and they just clunk along at the bottom of the barrel- I'm gonna get a 12 Lber soon and use it only for course run- just feed it grit and rocks every week and it will be happy!
|
|
|
|
Post by pinemountaintrader on Dec 28, 2005 20:12:12 GMT -5
Yeah, that's what I was thinking, bulk up on the coarse runs |
|
earthdog
Cave Dweller
Don't eat yellow snow
Member since June 2006
Posts: 2,731
|
Post by earthdog on Dec 29, 2005 23:25:01 GMT -5
I have the Lortone 312 and I have put all sizes in there. I have ran some that were 3" with small agates the size if a quarter. I have always filled it up 2/3 of the way up and have good results. I always get a couple that chip or break, even in the #6 barrels. right now I am running some huge rocks, about 6 that are fist size, of ocean jasper and some whole brazilian agates, I also threw in a bunch of small rocks and they are doing just fine.
|
|
MichiganRocks
starting to spend too much on rocks
"I wasn't born to follow."
Member since April 2007
Posts: 154
|
Post by MichiganRocks on Dec 30, 2005 10:52:16 GMT -5
Here's an example of a rock that I tumbled in my Model B. Ron  |
|
|
|
Post by Jack ( Yorkshire) on Dec 30, 2005 12:33:02 GMT -5
Dont forget to add some small to assist the shaping and smoothing
Jack
Yorkshire UK
|
|
|
|
Post by pinemountaintrader on Dec 30, 2005 14:48:45 GMT -5
Ohh, nice pic MI-R! thanks for everyone's input!
|
|
|
|
Post by pinemountaintrader on Dec 31, 2005 22:07:44 GMT -5
Wow, this thing takes AlOT of rough. I worked for a LONG time today prepping material for the 12 pounder, figured I had just about enough, weighed it and it was just over 6 pounds!!!! Sheesh!!!
|
|
