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
jenb: I get it....didnt mean the ?
Jul 24, 2015 19:57:48 GMT -5
mr.mohs: when in doubt-- shout it out! mostly™
Jul 24, 2015 20:11:47 GMT -5
drocknut: Rainy day here, we need the rain but it sure puts a damper on my mood and work.
Jul 27, 2015 10:55:12 GMT -5
jakesrocks: No rain here yet. Just very high dew point. 85 & feels like 95. Rain coming again tonight.
Jul 27, 2015 13:07:17 GMT -5
Fossilman: Cool today,showers lastnite-We get 7 or 8 days of triple digits coming again,starting tomorrow!!!....Huge frown!!!
Jul 27, 2015 15:00:52 GMT -5
jakesrocks: Better come back to the Dakotas Mike. Low to mid 80's for the next week. 50% chance of a sound & light show tonight.
Jul 27, 2015 21:03:12 GMT -5
jakesrocks: WooHoo, gully washer last night. Came in around 1:00 AM. 60 + MPH winds. Got all of the siding on the house washed. Don't need to haul out the pressure washer to do it.
Jul 28, 2015 11:03:40 GMT -5
drocknut: Sun came out and it's warming up but the wind is horrible.
Jul 28, 2015 12:26:38 GMT -5
woodman: 101.2 here west of Portland right now, 1:21 pm.
Jul 30, 2015 15:23:52 GMT -5
rockpickerforever: Mercy! That's not a temperature, that's a radio station! Try to stay cool, woodman.
Jul 30, 2015 15:36:03 GMT -5
woodman: now 102.1 71.3 in basement with AC running hope power don't go off!
Jul 30, 2015 15:40:23 GMT -5
woodman: I wonder what this will do to rockhounging in the aea..http://www.oregonlive.com/travel/index.ssf/2015/07/owyhee_preservation_proposal_i.html#incart_river
Jul 30, 2015 16:22:44 GMT -5
snowmom: woodman hope you survived... I looked up the Owyhee proposal... input from interested parties at this stage might help form policy
Jul 31, 2015 4:43:04 GMT -5
drocknut: Looks like we're going to be in the 90s so the heat is on here too unfortunately.
Jul 31, 2015 9:06:32 GMT -5
woodman: We got up to 103.9 yesterday. Too hot for western Oregon. today will be another hot one.
Jul 31, 2015 9:18:34 GMT -5
Fossilman: Yuppers,it was 102 here in the valley in Oregon too! I HATE HOT WEATHER!!!
Jul 31, 2015 9:41:31 GMT -5
jakesrocks: Mid 80's in the Dakotas Mike.
Jul 31, 2015 10:04:29 GMT -5