Click on the photo and you'll see a short video clip. I built this little dandy after I spent some time in a working opal mine in Lightning ridge. This works well for separating nobbies from kaolinite clay, but it's not so slick for general rock tumbling.
Last Edit: Oct 30, 2009 19:59:06 GMT -5 by julietom
Here is the big tire tumble revision 2 - I cut chamfered disks out of plywood, and used a threaded rod with wing-nuts to tighten the chamfered edges into the bead of the tire rim. Note the V8 soda pop can at the end of the video, to get a sense of the size of things. This is a special large tire that is typical of the front tires of a large cement mixer truck.
I had to wrap a cross-section of inner-tube to each end of the 5 gal bucket, to get it to turn on the hex shaped driver spindles. This was a forgettable effort, with the rubber bands not holding up for more than several hours. dismal failure.....
Oh, I have a lot of rocks laying around to be sure! With the monster tire tumbler, I mostly just ran big rough cobbles in #10 grit, which cuts really fast, and skins the oxidation off rocks in a hurry!! This is expecially important with west coast jaspers, which tend to be rusty looking, and hard to read, until they have spent a nite in the tire tumbler. Ive never run anything bigger than about 20lb cobbles in it. I guess football sized or so. Mostly from there, I slab up the pretty cobbles, for cabbing, and the rest just kinda make their way to the various rock gardens around the house. I also have a 65T tumbler from diamond pacific, which can handle most rocks, but Ive only taken stones out to a satin finish in that thing. I need to get a good batch of smoothies to justify the purchase of a second 65T barrel, which is fairly pricey... I want to use a proper media to cushion the polish cycle in the 65t barrel, its too heavy to roll properly if you fill it with agates for your tumbling media, and if you dont fill it up, its too rough on the stones, and they get dinged up instead of polishing. Ive been cracking walnuts, to get a nice load of walnut shells to cushion the stones.... LOL
BTW, as has been mentioned on other posts, the tire tumbler will do a good job shaping your rocks, but you cant get the full use out of your grit before the sludge gets too milkshakey, and the stones get a bit rounded. After that the big stones would rather slide back down the well of the tire, than roll down in the desired manner. after 2 days or so, you have to muck it all out, rinse out your grit, and start over, after removing all the smooth tumbled stones, that are ready to move on to 60-90 in the next tumbler. Could you imagine storing a set of these tires, one for each phase of tumbling? Also the sealed bearings in my pillow blocks tend to get polish contaminated and wear out fairly rapidly. This is due to the slurry that seeps out of my tire during tumbling. This tumbler generates so much heat, that its like a sauna in that little soundproof room after an overnite tumble. No problems running this system in the dead of winter......
jakesrocks: gemsgalore, please post your question here. http://andy321.proboards.com/board/22/totally-rock-tumbling
Aug 27, 2015 10:50:32 GMT -5
Fossilman: Ed-exactly!!! He seen the purse,told he was going to take it..I called him a moron and he proved to me,that I was right..I was 15,he was 23...
Aug 27, 2015 11:50:07 GMT -5
mr.mohs: gemsgalore-- I got better idea of what to do with that chunk of opal. Rather than put it in a barrel------- hand polish it with 37,000gr emery paper and save it as a specimen...mostly
Aug 27, 2015 17:15:54 GMT -5
drocknut: Mike at least ya have an interesting tale to tell out of that mess.lol
Aug 28, 2015 18:24:51 GMT -5
drocknut: FYI I'm no longer in Nevada and am going to get dinner and desert. I'll have to let you all know if it was worth the trip.
Aug 28, 2015 18:28:07 GMT -5
mr.mohs: get some sherbet ice cream for desert, diane.... that will cool you down... mostly
Aug 28, 2015 18:46:33 GMT -5
mikeyrocks: Hey ms D you on your way to S Cal? Safe travels
Aug 28, 2015 19:31:31 GMT -5
parfive: September Rock & Gem, coupla familiars on p29.
Aug 28, 2015 19:34:38 GMT -5
quartz: 1 1/2 hrs. steady rain this A.M., first since mid May. Thanks to all for doing your rain dances.
Aug 29, 2015 7:25:47 GMT -5
Fossilman: Yes Diana,there is more to that story too..LOL We received some good rain lastnite too,more coming this week...Los of thunder,liking that!
Aug 29, 2015 9:28:58 GMT -5
mr.mohs: certain corridor of Phoenix had a violent thunderstorm last night-- I was in the eye of the storm--- the rocks are o.k. mostly
Sept 1, 2015 8:53:09 GMT -5
rockpickerforever: Ed, I heard about that on the news this morning. It's a good thing your rocks are hard, lol. How did you fare?
Sept 1, 2015 11:00:01 GMT -5
spiritstone: Expect more stormy weather. Its snowing in the mountains.
Sept 1, 2015 15:08:24 GMT -5
Fossilman: Snowing on Mount Hood here in Oregon too.................
Sept 1, 2015 16:48:21 GMT -5
spiritstone: Its the third or forth time in the last 2 weeks for us. I dont know why obama is headed to the arctic circle? just come to the Alberta Rockies and see it aint melting.
Sept 1, 2015 17:13:40 GMT -5
mr.mohs: Don & I fared well Jean... thnxs for asking! Luckily the electric didn't go off the other 1/2 of town did...outside this morning looks like Godzilla was on the loose !
Sept 1, 2015 19:18:45 GMT -5
drocknut: Glad you and Don fared well, Ed.
Sept 1, 2015 19:24:04 GMT -5
drocknut: I'm fine Ed, a little warm still but I'll survive. Thanks for asking. By the way, dinner and dessert were excellent; I may have to come back for seconds...lol. Thanks Scott.
Sept 1, 2015 19:32:12 GMT -5
mr.mohs: I got frozen rainbow sherbet ... .... any time...mostly
Sept 1, 2015 19:43:15 GMT -5