cman60
off to a rocking start
Member since September 2019
Posts: 13
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Post by cman60 on Sept 20, 2019 13:24:03 GMT -5
I have read and reread about mounting this tumbler on a concrete block, but what if you bolt the tumbler to a heavy duty huge home made work bench. I was thinking of 1/4 inch bolts with nylon locking nuts so they would not loosen up. The bench I'm wanting to bolt to takes 4 of us to pick up, vibration won't be a issue, meaning the bench shaking. I have bad knees and other rock tumblers so I was thinking of grouping all the tumblers together on 1 big heavy work bench. What do you think, good idea ? Thanks for any input. Cman60
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Post by Drummond Island Rocks on Sept 20, 2019 14:12:50 GMT -5
I have read and reread about mounting this tumbler on a concrete block, but what if you bolt the tumbler to a heavy duty huge home made work bench. I was thinking of 1/4 inch bolts with nylon locking nuts so they would not loosen up. The bench I'm wanting to bolt to takes 4 of us to pick up, vibration won't be a issue, meaning the bench shaking. I have bad knees and other rock tumblers so I was thinking of grouping all the tumblers together on 1 big heavy work bench. What do you think, good idea ? Thanks for any input. Cman60 That might be OK but I have a feeling it will be noisier without the solid cement blocks. I sure think you will get at least some vibration transfer too. As far as bad knees goes I have my lot-o mounted on a stack of 8x8x16 blocks to raise it up to workbench height. Hopefully someone here has tried what you want to do. You could always c-clamp it down to that work bench first as a temporary way to test it out. Chuck
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Post by aDave on Sept 20, 2019 14:40:39 GMT -5
I have read and reread about mounting this tumbler on a concrete block, but what if you bolt the tumbler to a heavy duty huge home made work bench. I was thinking of 1/4 inch bolts with nylon locking nuts so they would not loosen up. The bench I'm wanting to bolt to takes 4 of us to pick up, vibration won't be a issue, meaning the bench shaking. I have bad knees and other rock tumblers so I was thinking of grouping all the tumblers together on 1 big heavy work bench. What do you think, good idea ? Thanks for any input. Cman60 I'll echo Chuck's Drummond Island Rocks thoughts. I was concerned about working while bent over (back issues), so I stacked two 16 x 12 x 8 blocks and glued them together with construction adhesive. I glued flat side to flat side which left me with a 24" finished height. That may not sound very high, but by the time you mount the Lot-O base to the block, the top of the barrel while in the frame is around 30" or so from the ground. It's really actually pretty comfortable to work with. As it stands, you're really not going to spend alot of time working over the tumbler any how. The longest time you'll probably spend over the barrel is when you're adding grit. Inserting and removing the barrel, checking the load, and periodically adding water take no time whatsoever.
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Post by rockjunquie on Sept 20, 2019 15:30:57 GMT -5
I have a really bad back. I was concerned about the bending, too. I used 2 concrete blocks, like aDave said. It really does help a lot. I don't need to bend too much to tumble, and this is high enough, so it works out good.
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oldschoolrocker
fully equipped rock polisher
Member since January 2019
Posts: 1,540
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Post by oldschoolrocker on Sept 20, 2019 15:51:13 GMT -5
I will just add my experience with mounting the lot o. At first I used one standard cinder block and thought all was good. That is, until I watched videos of the "action" inside the barrel of the lot o and realized mine was moving significantly less than others. I added another cinder block under the one it was mounted to and immediately had much better action. I wonder if would hve same outcome mounting to workbench
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zarguy
fully equipped rock polisher
Cedar City, Utah - rockhound heaven!
Member since December 2005
Posts: 1,791
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Post by zarguy on Sept 20, 2019 18:11:46 GMT -5
If you stack 2 cinder blocks, watch out for the "Leaning Tower of Lot-O". Or the "Falling Tower of Lot-O". Lynn
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Post by aDave on Sept 20, 2019 19:54:50 GMT -5
If you stack 2 cinder blocks, watch out for the "Leaning Tower of Lot-O". Or the "Falling Tower of Lot-O". Lynn Nah. Then again, I don't know if you're being facetious or not. For me, there are no instability problems at all - at least with only two blocks. Only time I would worry about mine toppling over is if there was a big enough earthquake here. Then again, if the earthquake was big enough to knock my Lot-O over, I'll have far bigger things in the home to worry about.
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Post by rockjunquie on Sept 20, 2019 19:57:04 GMT -5
If you stack 2 cinder blocks, watch out for the "Leaning Tower of Lot-O". Or the "Falling Tower of Lot-O". Lynn Nah. Then again, I don't know if you're being facetious or not. For me, there are no instability problems at all - at least with only two blocks. Me either.
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zarguy
fully equipped rock polisher
Cedar City, Utah - rockhound heaven!
Member since December 2005
Posts: 1,791
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Post by zarguy on Sept 20, 2019 20:55:53 GMT -5
If you stack 2 cinder blocks, watch out for the "Leaning Tower of Lot-O". Or the "Falling Tower of Lot-O". Lynn Nah. Then again, I don't know if you're being facetious or not. For me, there are no instability problems at all - at least with only two blocks. Only time I would worry about mine toppling over is if there was a big enough earthquake here. Then again, if the earthquake was big enough to knock my Lot-O over, I'll have far bigger things in the home to worry about. Faceitous? Who Me? Ha! Lynn
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Post by TheRock on Sept 21, 2019 4:24:41 GMT -5
I have read and reread about mounting this tumbler on a concrete block, but what if you bolt the tumbler to a heavy duty huge home made work bench. I was thinking of 1/4 inch bolts with nylon locking nuts so they would not loosen up. The bench I'm wanting to bolt to takes 4 of us to pick up, vibration won't be a issue, meaning the bench shaking. I have bad knees and other rock tumblers so I was thinking of grouping all the tumblers together on 1 big heavy work bench. What do you think, good idea ? Thanks for any input. Cman60 Hi cman60, Where is this Work Bench going to be located? I have Harbor Freight Oak Workbenches With My Two Lot"O"s mounted on top of concrete block's The Blocks are rubber mounted on Top of the workbenches. The Workbenches are Bolted to the walls of my Lap Shop. I love my Lot"O"s but they sure can make a Racket! My Lap shop is located in an add on room in my Detached Garage, if it was near the house I would have a Noise Problem. I had to build a Frame because the damn things would try and walk off the workbench. If I knew what I knew now, I would have purchased Thumler UV-10 Tumblers They set on the workbench don't move at all and are Very Quite except when the lid is removed. I speak from experience because I have both. Just watch the Video 1:10 minutes in to here the Lot"O" Racket. Good Luck
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Post by grumpybill on Sept 21, 2019 10:38:24 GMT -5
Interesting...my Lot-O makes less noise than that even when the cap is off.
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Post by rockjunquie on Sept 21, 2019 11:50:50 GMT -5
Yeah, my Lot-o is really quiet. Interesting. Mine sits on my porch right next to my front door and I can not hear it through the door. I can sense some vibration, but I can't hear it. Even on the porch, it's real quiet.
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Post by arghvark on Sept 23, 2019 8:21:51 GMT -5
Is it possible the additional noise is coming from resonance? Any wood, regardless of how securely anchored, will have some resonance. Might be worth investigating, but seems to me that all else being equal a lot-o on a wood bench will always be louder than one on a concrete floor?
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Post by TheRock on Sept 23, 2019 10:03:22 GMT -5
Is it possible the additional noise is coming from resonance? Any wood, regardless of how securely anchored, will have some resonance. Might be worth investigating, but seems to me that all else being equal a lot-o on a wood bench will always be louder than one on a concrete floor? Yes I think that it is resonance, Should not have deck screwed the benches to the wall where the LOT"O" was going to sit. All I can say is when I first put them on the bench I caught them both in the nick of time, cause they both were fixing to walk away and damn near walked off the bench. I was SHOCKED when I got the Thumler Ultra Vibes on how much quieter they were, and how they just sat on their rubber feet and don't move a lick. I had problems with one of my Lot"O"s Breaking a weld joint on the frame and sent Tom Stockwell from belt the owner of LOT"O" Pictures of how I mounted them, and he said the Instillation was Text Book. Maybe mine Vibrates More than normal? I don't know other than theyn but they both work good and have polished alot of stones.
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Post by fernwood on Sept 23, 2019 13:10:32 GMT -5
I have been following this, as my Lot O can now be moved into house. It is mounted on one cement block. Ran very quiet and smooth in a test run with no rocks after new motor was installed.
Am now just thinking of keeping it on the cement floor of utility room. My first thought was placing it on my 1940's enamel table. Was going to put tool chest liner under it. Actually, place the liner on the entire table, as the Lortone Combo Unit is going there as well.
Thoughts on either placement?
Sorry, no intent to hijack this thread.
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oldschoolrocker
fully equipped rock polisher
Member since January 2019
Posts: 1,540
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Post by oldschoolrocker on Sept 23, 2019 16:10:05 GMT -5
I have been following this, as my Lot O can now be moved into house. It is mounted on one cement block. Ran very quiet and smooth in a test run with no rocks after new motor was installed. Am now just thinking of keeping it on the cement floor of utility room. My first thought was placing it on my 1940's enamel table. Was going to put tool chest liner under it. Actually, place the liner on the entire table, as the Lortone Combo Unit is going there as well. Thoughts on either placement? Sorry, no intent to hijack this thread. One thing I've read about lot o is not to run it without a full load in barrel as can damage springs. Another to keep in mind is the reverberation if placed on a table or such.
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Post by grumpybill on Sept 23, 2019 19:14:53 GMT -5
Am now just thinking of keeping it on the cement floor of utility room. My first thought was placing it on my 1940's enamel table. Was going to put tool chest liner under it. Actually, place the liner on the entire table, as the Lortone Combo Unit is going there as well. My vote is to put it on the floor. Mine is mounted with double sided tape onto a 12x16x4" solid concrete block and sits on the concrete floor in my basement and can barely be heard over the Lortone 45c running beside it.
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cman60
off to a rocking start
Member since September 2019
Posts: 13
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Post by cman60 on Sept 23, 2019 20:06:05 GMT -5
The table I will be mounting on is a 2" wood slab, 3' deep by 8'long sitting on a concrete floor in our garage.I wont get to work on this project much because we are helping our daughter move across Colorado. Hopefully we can do a little rock hounding in the Gunnison area while we are there. Thanks for all the ideas and replies, I will follow up with photos and a report when we get back. Cman60
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quartz
Cave Dweller
breakin' rocks in the hot sun
Member since February 2010
Posts: 3,341
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Post by quartz on Sept 23, 2019 23:02:11 GMT -5
A few years ago someone posted a help request on the forum; he had mounted a Lot O on a table [c-clamped as I remember} and it didn't work at all. The advice was to mount it properly per provided instructions, which he returned as being done. wonder of wonders, it worked great.
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Post by arghvark on Sept 25, 2019 8:59:09 GMT -5
Is it possible the additional noise is coming from resonance? Any wood, regardless of how securely anchored, will have some resonance. Might be worth investigating, but seems to me that all else being equal a lot-o on a wood bench will always be louder than one on a concrete floor? Yes I think that it is resonance, Should not have deck screwed the benches to the wall where the LOT"O" was going to sit. All I can say is when I first put them on the bench I caught them both in the nick of time, cause they both were fixing to walk away and damn near walked off the bench. I was SHOCKED when I got the Thumler Ultra Vibes on how much quieter they were, and how they just sat on their rubber feet and don't move a lick. I had problems with one of my Lot"O"s Breaking a weld joint on the frame and sent Tom Stockwell from belt the owner of LOT"O" Pictures of how I mounted them, and he said the Instillation was Text Book. Maybe mine Vibrates More than normal? I don't know other than theyn but they both work good and have polished alot of stones. Yeah, anchoring to a wall transmits that vibration to the wall. But they sure do make purty rocks, and easily! Mine is on the floor in the garage, but I put a piece of cardboard under it to avoid scuffing. I can hear very low-pitched vibration at night in the bedroom (shares a wall with the garage) when everything is very quiet. Thinking of coating the bottom of the block with some paint-on rubber and removing the cardboard, see if that makes any difference.
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