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......
linus: bobby1: I placed a message for you to ask for a copyright. Please read my message since I know no other way to contact you.
Jul 27, 2014 5:37:07 GMT -5
drocknut: Jim, sending prayers for your son and your family.
Jul 27, 2014 16:16:20 GMT -5
snowmom: Good morning! 50 degrees here with the wind from the NW, leaves rustling and it makes me restless... the rocky beaches will be in full song this morning. Think I'll take my camera and take some pics this morning for show and tell. what are you all up to?
Jul 28, 2014 5:24:08 GMT -5
wampidy: Sitting in my underwear in front of the computer drinking cappuccino and eating brown sugar and cinnamon pop tarts. A mental image you probably could have went without but you asked. Want to go hounding, all gassed up but I gotta buy some new tires for my
Jul 28, 2014 5:58:04 GMT -5
wampidy: pickup before I go running around in the hills. One of my goodest tires has a bulge and all the tread is worn off of it in that spot. Tells me that I probably should have replaced it a long time ago but it is just a little wup wup.
Jul 28, 2014 6:01:01 GMT -5
snowmom: LOL, I did ask.. I'll be more careful next time! I expect hounding out there is a terror on tires- all those sharp rocks...
Jul 28, 2014 6:12:29 GMT -5
drocknut: Snowmom at least he didn't say he was naked...;)
Jul 28, 2014 18:42:15 GMT -5
rockpickerforever: Diane, if he said he was sitting in his underwear, most would understand that he is not naked. What's wrong with naked, anyway? ...Unless that's your laptop sitting in his lap, ho ho!
Jul 28, 2014 20:08:31 GMT -5
rockpickerforever: Ouch! Ha ha, gotta at least wear some leather chaps! How're you dune, Ed, out in that furnace they call Phoenix? Grinding and sweating? Mostly? You do what it takes...
Jul 29, 2014 0:58:51 GMT -5
mr.mohs: grinding naked...best way to get a buff on stone
Jul 29, 2014 9:39:27 GMT -5
mr.mohs: howdy Jean - doing a mild summer- that's two in a row- Phoenix is the best weather in the country-another few weeks and I'll be scantily dressed & in full rock'n heart production...take care..Ed
Jul 29, 2014 9:42:35 GMT -5
wampidy: There was not one of the tires on my pickup good enough to replace my raggedy spare. Just went ahead and bought all four. As bad as the front tires were it is a wonder I am not laying in a ditch somewhere between here and Quartzsite.
Jul 29, 2014 23:23:50 GMT -5
wampidy: Sure drives nice now except for the wandering. Replaced the steering ball joints before I left for Q and they already have a bunch of slop in them. Must have been a tad bit of stress there on the trip.
Jul 29, 2014 23:27:08 GMT -5
Fossilman: New tires are always a blessing...
Jul 30, 2014 8:54:32 GMT -5
snowmom: we just got new tires too.. must be the season... or maybe the places we go? Yes,a blessing... the difference is amazing, and the car actually stays on the road in the rain now...
Jul 30, 2014 17:52:22 GMT -5
glennz01: Anyone here ever seen or have Blizzard Stone?
Jul 30, 2014 20:47:51 GMT -5
Stone Whisper: Fossil.. New Tires maybe on the way.. but first I have to get these new shocks ready.. The eye/loops were not coated very well, Thus I was forced to repaint. Besides I best get down there now and put the last set of bushings in them.
Jul 31, 2014 7:48:16 GMT -5
rockpickerforever: New tires on my F250 in May, caught a large staple in one Monday, they had to replace it . But only cost me $30 for a new certificate. Too bad the weights keep coming off, and I have to keep getting them rebalanced - three times already!!!
Jul 31, 2014 9:53:09 GMT -5