|
Post by captbob on Dec 30, 2015 18:34:49 GMT -5
My intentions with the big tumbler is to only do coarse grind. I'm hoping to get three Loto loads out of the coarse tumble. Which is going to lead to another thread about setting up and running the Loto. Not like there are already a gazillion of 'em Yer gonna need a smaller water cup!
|
|
Intheswamp
Cave Dweller
Member since September 2015
Posts: 1,910
|
Post by Intheswamp on Dec 30, 2015 18:45:49 GMT -5
Then there shall be a gazillion-and-one. Smaller cup? Nah, I think I can make the large plastic Hardee's cup work...just fill half-full, more or less.
|
|
Intheswamp
Cave Dweller
Member since September 2015
Posts: 1,910
|
Post by Intheswamp on Dec 30, 2015 19:09:21 GMT -5
Ok, I mentioned earlier about a noise I've been hearing from the tumbler. It's something that I hear as not being the tumbler itself nor the rocks tumbling inside the barrel, but something "else". I checked the tumbler before leaving work tonight. It's not in a well lit area and I happened to see a pattern wearing into the barrel. Where the most wear is is on the coupling...the center of it was/is higher than the rest of it which makes it ride so it rides high This must be caused from the barrel slipping on the shafts. The noise I'm hearing is rhythmic with each "noise cycle" lasting about one revolution of the barrel. The pvc end-cap shows some of this rhythmic wear, too. I'm also wondering about the bearings and grease. I did not grease them when I installed them and in looking them over tonight the fittings on all four bearings were loose. I tightened them up but it got me to wondering if they ship these things out without grease in them. They felt good and smooth and seem to be running cool, but the black vertical sides/walls of the bearings seem to be "wobbling" as they turn. They will get grease tomorrow. Here are a couple of shots of the wear patterns in the barrels. Not running true? Shafts not parallel? Could this be causing, or be a symptom of the noise. Coupling... IMG_9499a (Custom) by Intheswamp, on Flickr PVC end cap... IMG_9503a (Custom) by Intheswamp, on Flickr
|
|
jamesp
Cave Dweller
Member since October 2012
Posts: 36,169
|
Post by jamesp on Dec 30, 2015 20:45:49 GMT -5
I get those bands. I grind them away with a hand grinder if they get deep. Gives a rotary vibratory effect.
ETA I think I have had to dress a couple of my barrels with a grinder about 3 times over 3 years Ed. You can slide a section of hose on the shafts where the coupling and the cap contact. Those fittings do have a high spot that is easy to see since the shaft rides on them. Grinding widens the contact surface, but the hoses over the shaft will eliminate the problem. Did you use 3/4" or 1" shafts ?
Gates rubber radiator hose is tough stuff. It will run quieter too. Switching the motor to 1125 will quiet it down to. You seem happy with the grind rate. 1125 will use less electricity.
|
|
|
Post by 1dave on Dec 30, 2015 21:21:31 GMT -5
Two fused ankles. Four dislocated bones in wrist. Rotator cuff tendon w/100% tear. Back surgery. Two finger operations. Two compound broken legs. Dislocated collar bone. James rode hard and put up wet. May want to listen to Bob and reconsider road. Perhaps like Forest Gump, your wild riding days are over ? I had a friend in Kansas that used to sit on the back of his jeep seat with a boot heel in the steering wheel, throttle pulled out chasing jack rabbits with a rifle - until he drove into a ravine. similar ending of "fun activities."
|
|
jamesp
Cave Dweller
Member since October 2012
Posts: 36,169
|
Post by jamesp on Dec 31, 2015 7:31:23 GMT -5
The doctors got me patched up pretty good 1dave. Doc says to stay active and don't over do. No doubt about the wild days, only memories. Sitting behind a desk seemed to have a worse effect on some of my friends.
|
|
|
Post by 1dave on Dec 31, 2015 11:37:07 GMT -5
The doctors got me patched up pretty good 1dave . Doc says to stay active and don't over do. No doubt about the wild days, only memories. Sitting behind a desk seemed to have a worse effect on some of my friends. Yep ! ALL my desk sitting friends are dead. you gotta keep doing to keep going. But then, the other side of the veil keeps looking more and more enticing. My next avatar.
|
|
|
Post by 1dave on Jan 1, 2016 8:19:24 GMT -5
How did you get from the accident to the hospital? I hope you had some help-, not like Hugh Glass !
|
|
jamesp
Cave Dweller
Member since October 2012
Posts: 36,169
|
Post by jamesp on Jan 1, 2016 9:01:09 GMT -5
Main source of injuries was motorcycle related at the age of 20. The ambulance did the transport so they say. And for almost 40 years I have lived with those injuries 1dave. Not such an exciting story. Other than the fact they found me 168 feet past the back of the car I ran my motorcycle into. Not sure if the grizzly or the motorcycle is a quicker demise.
|
|
Intheswamp
Cave Dweller
Member since September 2015
Posts: 1,910
|
Post by Intheswamp on Jan 1, 2016 9:47:09 GMT -5
I get those bands. I grind them away with a hand grinder if they get deep. Gives a rotary vibratory effect. ETA I think I have had to dress a couple of my barrels with a grinder about 3 times over 3 years Ed. You can slide a section of hose on the shafts where the coupling and the cap contact. Those fittings do have a high spot that is easy to see since the shaft rides on them. Grinding widens the contact surface, but the hoses over the shaft will eliminate the problem. Did you use 3/4" or 1" shafts ? Gates rubber radiator hose is tough stuff. It will run quieter too. Switching the motor to 1125 will quiet it down to. You seem happy with the grind rate. 1125 will use less electricity. Happened to catch your edit.... I used 3/4" shafts...will look for appropriate radiator hose. I was figuring that once the barrel wears down some more it would give it a wider traction area and maybe quieten down some. In regards to the motor I'm wondering if longer shafts tend to be louder...vibrations possibly setting in like a mammoth guitar string...the offending noise is rhythmic, you might say two strums and a pause. BUT,...the last few days I'm wondering if a wave of rocks is cresting and falling in rhythm...which wouldn't be a good thing. The tumble rate is ok with me, I'm in no big hurry but, of course, don't want to drag it out. I'm thinking I've got the motor running at 1140rpm. The visually counted rpms of the barrel matches within an rpm or two with what the pulley calculator says would be produced with my pulley setup and an 1140rpm motor. The amps showing on the Watts-Up meter (2.02-2.05) is also indicative of the 1140rpm setting. Looks like a pulley change would be required to slow it down...gotta check my "inventory". ....or just let it chug along as is.
|
|
Intheswamp
Cave Dweller
Member since September 2015
Posts: 1,910
|
Post by Intheswamp on Jan 1, 2016 9:51:12 GMT -5
Main source of injuries was motorcycle related at the age of 20. The ambulance did the transport so they say. And for almost 40 years I have lived with those injuries 1dave . Not such an exciting story. Other than the fact they found me 168 feet past the back of the car I ran my motorcycle into. Not sure if the grizzly or the motorcycle is a quicker demise. That sounds semi-familiar. I've got a few aches, too...mostly self-inflicted, some work related....not sure how to (or if I can) differentiate between them now. Driving off a 15' bridge abutment in an '83 300zx and cartwheeling two or three times down through the swamp isn't good for the frame (of the car nor your body). That was one time it wasn't good to be "in the swamp".<groan...bad humor>
|
|
Intheswamp
Cave Dweller
Member since September 2015
Posts: 1,910
|
Post by Intheswamp on Jan 1, 2016 10:34:09 GMT -5
Ok, back to the MP Tumbler... I've found an issue that I will have to resolve within the next few days. The clothes-dryer drum rollers are not going to work out for me it appears. Maybe if I had been able to mount them very close to perpendicular to the pvc cap it might be better, but as it is the pvc cap presses against the roller somewhat from the side. It appears that the roller that the barrel runs against is wearing down too quickly. Due to this wear the pvc cap is nearing the metal housing of the pillar bearings. So's...I'll be changing those out for something else. jamesp , do you think metal rollers from a roll up door would wear too much on the pvc cap? Better to simply use a hard plastic dolly wheel? I'm back looking at options for the stand-offs!<sigh> ...and need to do it this weekend.
|
|
jamesp
Cave Dweller
Member since October 2012
Posts: 36,169
|
Post by jamesp on Jan 1, 2016 10:59:50 GMT -5
I can tell you the speed of the motor knowing barrel is at 46 RPM, correct ? 3/4 shaft and 7.5 inch barrel = 1/10 reduction. Your big pulley is 9.75 ID. what is your motor pulley ID Intheswamp ?? I will back calculate. The motor pulley has big effect, you may many to measure the belt top to bottom as it is wrapped around pulley-close is good enough. 2 inch motor pulley is 35 RPM 3.5 inch motor pulley is 62 RPM Guessing you have a 2.6 inch motor pulley that would make about 46 RPM with 1725 RPM motor using 3/4 shaft/9.75 big pulley. I say your motor is at 1725. If you change from 1725 to 1140 you will have 1125/1725 X 46 RPM = 30 RPM
|
|
jamesp
Cave Dweller
Member since October 2012
Posts: 36,169
|
Post by jamesp on Jan 1, 2016 11:26:30 GMT -5
Side rollers with bushings, crappy motors with no bearings(again bushings), crappy tumblers with bushings on the shafts kinda get on my nerves.
It is not fair to run most bushings 24 hours a day-period.
End roller placement and it's bearing is or can be a hassle.
One of my end rollers are on bushings and I bought a box of junk rollers that I change out regular. The other has bushings and has run for 3 years ?#$$@@
|
|
Intheswamp
Cave Dweller
Member since September 2015
Posts: 1,910
|
Post by Intheswamp on Jan 12, 2016 17:58:15 GMT -5
|
|
Intheswamp
Cave Dweller
Member since September 2015
Posts: 1,910
|
Post by Intheswamp on Jan 12, 2016 18:42:55 GMT -5
What I'm seeing is a lot of fractures and spalling(?). It's kinda depressing in that I don't think fractured rock works well in sawing and grinding for cabs. As I mentioned somewhere, I think I need to start going for cobbles and breaking my own stone out of them, à la jamesp ...they won't be as fractured then and maybe I'll get some cabbing material out of them... ?
|
|
jamesp
Cave Dweller
Member since October 2012
Posts: 36,169
|
Post by jamesp on Jan 12, 2016 20:44:25 GMT -5
Yea Ed, the outside of those stones are pretty beat up. The more you rough grind the more obvious they become. I worked real hard and chipped a lot of rock to get a barrel full of tumbles. However, some of those pebbles had no fractures and were some of my best. Tumbled just as found.
I hunted about 10 miles upstream from I-85 on a private ranch and found smaller but less fractured stones. I just did fill a SFRB of tumbles to send that ranch owner today. He invited me to come back. He had 6 gravel bars on his place. I only collected on one of them. Good land owner relations to send some finished rocks. He was happy about getting some of those rocks back tumbled. Figure that is the least I could do.
Yes, plenty of fine cab grade stuff there. Got another batch about finished(#2 batch). Got some fine ones, some fine glitter ones too. These got tumbled about 2.5 times longer than batch #1. Should be well rolled.
Still learning how to collect the better stuff. That place has a long learning curve.
|
|
Intheswamp
Cave Dweller
Member since September 2015
Posts: 1,910
|
Post by Intheswamp on Jan 13, 2016 8:11:52 GMT -5
Yeah, gotta get some more solid rock. The grain of the rock is really nice, but those cracks and crannies are the pits (and there are pits, too).<sigh> Maybe by the time they're putting that big rock on top of me I'll have figured it out.
|
|
jamesp
Cave Dweller
Member since October 2012
Posts: 36,169
|
Post by jamesp on Jan 13, 2016 11:15:43 GMT -5
The thing about that place is the fact you can pick thru it and get solid rock. Great resource Ed, you are fortunate to have those rocks near you.
If you can locate the mother veins of that material you will be mesmerized at how nice it is.
Creeks like that beat the hell out of those rocks, they got round for a reason.
I have found vein quartzite in the past when arrowhead hunting. Fine stuff.
|
|
Intheswamp
Cave Dweller
Member since September 2015
Posts: 1,910
|
Post by Intheswamp on Jan 13, 2016 12:29:02 GMT -5
I do feel blessed to have them in reach, jamesp and broseph82 , now I've gotta figure out how to use the resource. I meant to take a picture of it, but one flat plate rock in that batch is really mesmerizing. It is clear with either some light fractures in it or either some type of "something" that is very light colored in it. It was a good 1/4" thick...when it was wet I could read newsprint through it!!! The reds almost remind me of moss agate...looking down into it them they look like "puffs" of red clouds. Just gotta work on finding the "good" rocks. I appreciate you and Jimi, both, ya'll are good friends leading a greehorn here. I definitely wouldn't be this far along if it were for the two of ya'll...and of course the rest of the crowd here!!!...too many to name !!!!!!!!!! Thanks *everybody*!!!!!
|
|