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......
snowmom: stonewhisper, have a great vacation thanks for the link!
Aug 13, 2014 18:59:24 GMT -5
PurplPixie: Anyone know of people who buy lapidary rough collections in Oregon?
Aug 15, 2014 15:12:54 GMT -5
1derwoman: I wished I could wear the outfit but bigwigs at the hospital where I work would frown. I hope this post works if not I will have to call Ann or any of the teenagers I know for tech support.
Aug 15, 2014 15:20:03 GMT -5
Fossilman: Purplpixie,there are a lot of Oregon people that buy rough.....Sometimes whole collections,if the price is right..Just post it on the forum..
Aug 16, 2014 8:16:45 GMT -5
rockpickerforever: Another day of hot, sticky GA weather here in the southlands of CA. James, please take your weather back!!! I don't like it!
Aug 18, 2014 12:02:31 GMT -5
Fossilman: Getting that crap up here too,I'm staying in house,going to can tomatoes and dry some Habaneros...
Aug 18, 2014 12:22:46 GMT -5
snowmom: 57 degrees here last night 70 right now, mild wind from the nw, supposed to bring rain tonite, then days in the mid 70's until the weekend
Aug 18, 2014 16:21:41 GMT -5
bhiatt: I don't live all that far from the rioting. Around 20 miles. Getting crazy over there right now. Big crowd, tons of cops and reserves. Live action on the local news.
Aug 18, 2014 22:01:28 GMT -5
Fossilman: I'm sorry for a death of anyone,but that's not right,tearing up and looting your own town!!! The IDIOTS!! No logic at all!!
Aug 19, 2014 9:38:48 GMT -5
rockpickerforever: I understand a lot of the trouble is being caused by people from out of the area.
Aug 19, 2014 10:01:51 GMT -5
bhiatt: seen this morning a bunch of drug and gun arrests. One news guy was saying how it smelled of marijuana all over. Hate to say it but it will happen again tonight. A small percentage of ghetto thugs are the on trying to hype the crowd up. Bunch of bullchit.
Aug 19, 2014 11:54:10 GMT -5
wampidy: Too bad they can still have alcohol to turn themselves into real zombies. All weed does is make them mellow.
Aug 19, 2014 12:31:29 GMT -5
bhiatt: weed is the devil's drug.....kidding
Aug 19, 2014 12:48:42 GMT -5
PurplPixie: Alcohol is the worst, drunken zombies for sure
Aug 19, 2014 12:55:14 GMT -5
wampidy: I do not use either but I would much rather have a bunch of pot heads driving instead of drunks. All the pot heads do is slow you down and not kill you.
Aug 19, 2014 16:13:23 GMT -5
Fossilman: Sounds like the town might go belly up over this-hope not...
Aug 19, 2014 19:00:44 GMT -5
bhiatt: going to be a hot steamy night out there tonight. 90 something arrests last night. Lots of drug and gun charges. The main black cop that has been in the spot light said no protesting at night. I knew this was going to happen. The ghetto azzes come out...
Aug 19, 2014 19:13:27 GMT -5
bhiatt: at night stirring shit up trying to start a riot. A lot of out of towners coming in now.
Aug 19, 2014 19:14:16 GMT -5
Fossilman: Sounds like the 70's all over again....I remember that well...
Aug 19, 2014 21:13:01 GMT -5
bhiatt: they are out there again tonight. So far peaceful. Local news just started covering it. Last night it looked like a war zone by the end of the night.
Aug 19, 2014 21:24:21 GMT -5