Is there any reason I cannot re-use course and fine tumbling grit and the prepolish? After skimming off the plastic pellets and pouring the water off in the yard, it's easy enough to collect the grit. Why shouldn't I re-use it?
If you have grit left, you didn't run the cycle long enough. You're not getting all you can out of the grind. Or are you referring to the gray slurry. If that's the case, it isn't what it used to be - it has broken down by at least one stage.
Some folks will start a batch in 60/90 and let it run for months at a time. The silicon grit keeps breaking down all the way to polish stage. Maybe someone will chime in and let us know how this method works for them. My problem with that method is you don't get the same shaping as repeated cycles in the 60/90 grind would provide - but that could just be my preference. I re-charge with new 60/90 every week until I'm happy with the shape and texture before moving on.
I think some folks use a bit of the slurry from the old batch into the new batch to jump start slurry formation. I've never found the need myself. Most everyone re-uses polish though - it doesn't break down like grit.
Post by rocklicker on Oct 20, 2009 16:25:43 GMT -5
Hmm, if it's still coarse grit then yes, you aren't spending enough time in the coarse grind, or you need a better mix of rocks vs. grit carriers aka small rocks, chips. If you still find you have leftover grit then you are using too much. Better to not waste grit if you can help it. I like the idea of jumpstarting the next batch with used slurry. Steve
When I'm rinsing out barrels I let the water run into the barrel and take the rocks out by hand rinsing them off as I go. The tumbling grit settles to the bottom and can be reused. It's not as aggressive as brand new 60/90 but if you have about 25% old grit and 75% new grit you'll get good results. Washing out your barrels this way gives you a good idea of how your grit is being used up so you can time your barrel clean outs better.
Also, if you put an old cookie sheet under the barrels while you're rinsing them out you'll catch a little more grit.
Rick Copeland Silversmith and Lapidary Artisan rockymountainwonders.com
Post by goldfeverdave on Aug 30, 2010 19:07:18 GMT -5
i dont use the 60/90 over its brokedown to much as far as the pre-polish and polish goes i use it over few more times works ok for me far as tumbing agates take good 2 weeks get the round size agates very tough
rockpickerforever: Thanks, Jim and Dave. I agree. It happened almost exactly 35 years ago, just before Thanksgiving. She was only 22 years old. A great loss.
Nov 23, 2013 14:15:29 GMT -5
Shotgunner: It's almost spherical! gimme a G - an A - a B- another B- an R - give me an O - What;s that spell?? Gabbro!!
Nov 24, 2013 21:28:52 GMT -5
Shotgunner: cutting AND spheremaking - life is grand.
Nov 24, 2013 22:16:28 GMT -5
wampidy: Is that a rock or a brother that talks a lot? I prefer good old American names like "wampidy"
Nov 25, 2013 7:18:43 GMT -5
rockpickerforever: I am taking care of business - at Ford dealership, getting oil changed in FX4 before heading out to desert tomorrow. I love wi-fi! Will be going thru RTH forum DTs while away, no wi-fi out there. Maybe McDs in Yuma?
Nov 26, 2013 13:19:36 GMT -5
Fossilman: Good luck Jean.....
Nov 26, 2013 15:19:31 GMT -5
rockpickerforever: Thanks, Mike. You can bet I'll have fun, one way or the other!
Nov 26, 2013 15:26:48 GMT -5
herchenx: Has anyone heard from Jo lately? (NatureNut)
Nov 26, 2013 16:54:48 GMT -5
drocknut: Have fun in the desert Jean.
Nov 30, 2013 20:49:04 GMT -5
Shotgunner: rock'n the homegrown pizzas tonight! woot!
Dec 1, 2013 19:06:41 GMT -5
Fossilman: Nothing better than making homemade pizza,plus the dough and sauce....
Dec 1, 2013 22:07:06 GMT -5
iamnoone: Just started my first tumble, my rocks are not going in circles like the thumler uv 18 videos I've seen online. They are just vibrating next to each other quickly. I followed instructions to the letter. Enough grit, water and rock. Am I just worrying?
Dec 2, 2013 18:55:28 GMT -5
herchenx: iamnoone - are the rocks already rounded or are they all jagged? is the barrel full up to within 3/4" of the top of the cone? Are you running a UV10 or a UV18 or something else?
Dec 3, 2013 15:31:58 GMT -5
catmandewe: Usually if they are just sitting there you have too much water. I usually add one drop of liquid hand soap also to make the grit stick to the rocks, but be careful not to add too much soap or water.
Dec 3, 2013 22:28:54 GMT -5
Jasper-hound: Guys, I appreciate the questions. For my own pendants, which need to be more masculine, I wear simple stones with only a sterling silver ring soldered through a drilled hole. I have found this to be a good look, and other men enjoy them as well.
Dec 8, 2013 12:02:14 GMT -5