Gold Ore

[southfork]

A little sample that was found with a metal detector. Crushed by hand then panned to wash away some of the dirt and clay? The photo is macro so real small particles, but the quartz shows and what looks like iron and free gold. I think we need a small smelter to retrieve the values trying to speed up the recovery what's your thoughts ?

 

[Mountaineer2020]

So far, my Chinese Jaw crusher has held up and works great and pays for itself.

So I've been waiting to see how the jaw crusher held up and it sounds like it's been a good buy! How much did it cost and was it an alibaba purchase? Do you have the exact link? I was looking at alibaba shaker tables too. I called them and they wanted $1,400 for the one advertised at $400. Must have been delivery costs I'm guessing? Any rate went with a used RP4 and absolutely love the thing. Catches that fly poop gold in the pic. Probably could have saved the bucks with a Chinese model but I wasn't sure of quality. Anxiously watching your thread to see how it pans out!

 

[southfork]

So I've been waiting to see how the jaw crusher held up and it sounds like it's been a good buy! How much did it cost and was it an alibaba purchase? Do you have the exact link? I was looking at alibaba shaker tables too. I called them and they wanted $1,400 for the one advertised at $400. Must have been delivery costs I'm guessing? Any rate went with a used RP4 and absolutely love the thing. Catches that fly poop gold in the pic. Probably could have saved the bucks with a Chinese model but I wasn't sure of quality. Anxiously watching your thread to see how it pans out!

Works great to get the material down to 1/4"- you can adjust for finer grind, but I finish with a chain mill. I purchased off Amazon $925 + shipping Not sure about the import tables I'm building my own as a test lol.https://www.amazon.com/TECHTONGDA-Crusher-Machine-Electric-Shatter/dp/B09TQPRY7B/ref=sr_1_1_sspa?crid=1OC2GCDVCT6KA&keywords=jaw+crusher+machine+for+rock&qid=1706994787&sprefix=jaw+crusher%2Caps%2C171&sr=8-1-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&psc=1

 

[southfork]

My son Seth and his friends have a new claim close to home and easy access it has placer and hard rock deposits. We tried this one out last season, and all found a little gold should be plenty of cons for me to play with Happy Mining. I didn't go today I'm welding and fabricating on my table rain on the way and high winds. I'm going to try and drag everything inside the barn so I can keep working on this project.

 

[southfork]

I welded some flat stock on to strengthen the tube stock in four places . Drilled added all thread and nuts now I can adjust tilt and end elevation. The casters can go on the wood platform or bottom of table with guides wood or metal. I'll cut the all-thread to length once I figure out how long they need to be. The wood platform was part of a drafting table the shaker table slides like it's on ice now. Still thinking about the drive and stroke I'll play with that in the morning. I will take apart and paint the whole thing if it works it will be outside.

 

[desertgolddigger]

I welded some flat stock on to strengthen the tube stock in four places . Drilled added all thread and nuts now I can adjust tilt and end elevation. The casters can go on the wood platform or bottom of table with guides wood or metal. I'll cut the all-thread to length once I figure out how long they need to be. The wood platform was part of a drafting table the shaker table slides like it's on ice now. Still thinking about the drive and stroke I'll play with that in the morning. I will take apart and paint the whole thing if it works it will be outside.

My goodness, you're fast. If those casters are a problem, try V rails and wheels. My observatory roof sits on those, and they allow me to move that heavy roof with just one hand.

 

[Tesorodeoro]

Well, you’re about to finally get your rain. Better have your sluice box ready today.

 

[Tesorodeoro]

My sons Nox find from the new claim yesterday its wrapped with gold under the dark layer. This one going to soak in chemicals for a couple of days real heavy for a small rock.

That looks like pretty hard quartz. Looking forward to seeing what is revealed.

 

[southfork]

Wild weather lately but I have a barn / shop to work in. I've been working on the drive mechanism for the shaker table Waiting on some bearings for my horizontal electric hack saw that went south. I need to cut some steel pieces to finish the support table and changed the drive pulley to get the stroke shortened from 9" inches down to 2"inches. A piece of scrap wood for a test and it worked the actual arm will be metal Happy mining.

 

[southfork]

Beautiful sunny day I was inspired to work on the shaker table it was jumping around. I added some springs and eye bolts that took care of the jumping nice and smooth now. But still too fast I'll play with pulley size and it needs guide rails just some wood strips fastened to the bottom of the table will work with the rollers. Also the weight of the table going Backen forth the whole thing wants to go for a walk on the concrete floor. I fixed my jet electric hacksaw with some Amazon bearings It's never been this quiet cheap fix under ten bucks delivered. Jet parts dealers wanted $38 plus shipping. Linear rails would work better than rollers and smoother I think? it would anchor the table down also. Happy Mining. What I saved on bearings will almost buy a set of linear rails.

 

[southfork]

A little pricy for me but I like the frame and mechanicals at least what I can see. I don't like the tabletop riffle design but just my way of thinking about micro gold. https://www.facebook.com/marketplace/item/372372092202023/?ref=search&referral_code=null&referral_story_type=post&tracking=browse_serp:8f674f77-71dd-4e20-a930-5e8b3d44fdbe I'm into my build about $200 so far with the same type of motor and speed.

 

[southfork]

More rain on the way I remounted the motor and drive on my experimental shaker table yesterday. I built a new drive arm out of an old telescope mount. I think this will work with less vibration and it has adjustable stroke better than an old stick. My linear rails showed up they were left leaning against my keep out sign at the end of the drive. Nice job UPS at least they could read, and it wasn't raining and yes, I was home at the time. The Vevor linear rails look well made I think I'll say goodby to the casters and try and mount these up. The rails are 39.4 inches long and 20mm in diameter the rail carriage blocks look beefy enough to handle my table and move real nice. For $68 bucks delivered I'll take a chance.

 

[desertgolddigger]

More rain on the way I remounted the motor and drive on my experimental shaker table yesterday. I built a new drive arm out of an old telescope mount. I think this will work with less vibration and it has adjustable stroke better than an old stick. My linear rails showed up they were left leaning against my keep out sign at the end of the drive. Nice job UPS at least they could read, and it wasn't raining and yes, I was home at the time. The Vevor linear rails look well made I think I'll say goodby to the casters and try and mount these up. The rails are 39.4 inches long and 20mm in diameter the rail carriage blocks look beefy enough to handle my table and move real nice. For $68 bucks delivered I'll take a chance.

Yup, those are the same ones I will be using. I'm somewhat leery of the ball bearing block bearings, I will use them until failure. I went ahead and purchased replacements. The bearings are that fancy plastic

(SBR20LUU 20mm Linear Bearing Long Block 2Pcs, 2 Pack 20mm Linear Motion Open Slide on Amazon)​

that's nearly indestructible, and apparently very smooth compared to the ball bearing type. BTW, the ball bearing type that come with four blocks, may not be strong enough to carry more than a few pounds at such rapid movement. I purchased eight more of these types, so that I have four per rail to distribute the weight more evenly. Wish I'd known about those facy plastic bearings before buying the extra ball bearing type.

My mind couldn't wrap around how to mount the blocks to the table, so I'm using one meter DIN rail. All I needed to do was find where each block would ride, and drill holes (widen the slots) so the 6mm bolts can fit.

 

[southfork]

Yup, those are the same ones I will be using. I'm somewhat leery of the ball bearing block bearings, I will use them until failure. I went ahead and purchased replacements. The bearings are that fancy plastic

(SBR20LUU 20mm Linear Bearing Long Block 2Pcs, 2 Pack 20mm Linear Motion Open Slide on Amazon)​

that's nearly indestructible, and apparently very smooth compared to the ball bearing type. BTW, the ball bearing type that come with four blocks, may not be strong enough to carry more than a few pounds at such rapid movement. I purchased eight more of these types, so that I have four per rail to distribute the weight more evenly. Wish I'd known about those facy plastic bearings before buying the extra ball bearing type.

My mind couldn't wrap around how to mount the blocks to the table, so I'm using one meter DIN rail. All I needed to do was find where each block would ride, and drill holes (widen the slots) so the 6mm bolts can fit.

I had some aluminum channel I salvaged from an RV awning mount same width as the bearing blocks. So I have a small problem with the bolts I purchased the rim on a couple of bolt heads hit the edge of the channel so a little grinding should work. The bearings that came with the rails are ball bearing that plastic just wipes the rail. But should still be plenty strong they roll easier with weight on them. They use them on CNC machines so rapid movement hopefully won't be a problem?

 

[Tesorodeoro]

A little pricy for me but I like the frame and mechanicals at least what I can see. I don't like the tabletop riffle design but just my way of thinking about micro gold. https://www.facebook.com/marketplace/item/372372092202023/?ref=search&referral_code=null&referral_story_type=post&tracking=browse_serp:8f674f77-71dd-4e20-a930-5e8b3d44fdbe I'm into my build about $200 so far with the same type of motor and speed.

That deck looks odd. I’d visit and ask them to run some material and verify with a pan before I’d be convinced. Who can’t easily capture “larger gold” before running something across a shaker table? But I’d be interested in watching a video of it in use.

 

[southfork]

With all this rain I've had plenty of time to work on my shaker table. I removed the casters and mounted the new rails that was the easy part the fun started with fastening the table to the rails. The aluminum channel was a little too narrow for the bolts to seat properly into the bearing blocks. So, I notched the edge of the channel this gave me access to tighten the channel down with the top resting on the channels. I used the channels as a templet to drill 6 holes through the shaker table with careful measurements The top fit on the first try lol. There is very little clearance between the tabletop and the rails a real pain to start a nut that's a story in itself. The first test I was doing the happy dance for a few seconds it was moving back and forth perfect then quit. I forgot to tighten the adjusting screw on the arm. Test number two ran perfect for a minute then quit! the v belt started slipping. It was a long day I started making a bracket to adjust the motor Maybe I'll finish that tonight Happy Mining.

 

[desertgolddigger]

I'm sure you're aware, but here's what I found about the linear rail and bearing system. You need to keep them clean, and use a good lubricant on the rails. I saw this on a video. But there was no mention of lubricating the bearings. I think the bearings pick up the PTFE base lubricant as they pass over the rails. I'm also guessing that the reason you see these rails and bearing in enclosed boxes is to keep them as clean as possible. This is one reason I am covering my equipment after each use with a good tarp. It'll keep the dust from collecting.

Did you get the rail stops? I got them for that mean demon that makes things go wrong for me. Figured the coupling on the drive shaft, and attachment point to the table would fail if that monster has anything to do with things. Don't want the table flying through the air.

 

[southfork]

I'm sure you're aware, but here's what I found about the linear rail and bearing system. You need to keep them clean, and use a good lubricant on the rails. I saw this on a video. But there was no mention of lubricating the bearings. I think the bearings pick up the PTFE base lubricant as they pass over the rails. I'm also guessing that the reason you see these rails and bearing in enclosed boxes is to keep them as clean as possible. This is one reason I am covering my equipment after each use with a good tarp. It'll keep the dust from collecting.

Did you get the rail stops? I got them for that mean demon that makes things go wrong for me. Figured the coupling on the drive shaft, and attachment point to the table would fail if that monster has anything to do with things. Don't want the table flying through the air.

I didn't buy the stops I missed those when I ordered but I tried it with the return springs just in case. I think a few drops of oil next to the bearing blocks will take care of the bearings with the short travel.

 

[southfork]

Made a few changes added bushings to my drive arm and bolted the adjuster so that it stays tight when running. Made an adjuster for the drive motor to stop the slipping v - belt. Another test it ran really smooth but way too fast ordered a 12"-inch 1/2" bore v belt pulley 10" on now should slow it down to about 123 rpms from 170 plus. When I'm satisfied with the action I'll start on the plumbing and tailing trough. And a little electrical like an on/off outdoor switch with ground fault plug.

 

[southfork]

Well, my 12"-inch v belt 1/2" bore pulley arrived but I needed a 5/8" bore don't order when tired. I drilled it out and made some modifications to the drive pulley and arm remounted all the parts. I like the speed and the stroke is down to 1" inch from 3" 1/2 inches and I also added a variable speed vibration motor from a failed project. This contraption is getting heavy but I don't need to move it very far back to electrical and plumbing. Happy Mining

 

[Mountaineer2020]

Well, my 12"-inch v belt 1/2" bore pulley arrived but I needed a 5/8" bore don't order when tired. I drilled it out and made some modifications to the drive pulley and arm remounted all the parts. I like the speed and the stroke is down to 1" inch from 3" 1/2 inches and I also added a variable speed vibration motor from a failed project. This contraption is getting heavy but I don't need to move it very far back to electrical and plumbing. Happy Mining

Like the project you got going. Question what's the orange motor for? Looks like a concrete vibrator. Mixing a vibration in with the stroke on the table?