This is my Three Stage Classifier I designed to go with the Gold Cube. Itsits on a 70 gallon tub. I canclassify 2 1/2 gallons of material at a time compared to one shovel full with the conventional bucket classifier. It has 2"x3" opening in the first stage then 1/2 inch then 1/8" for the last stage. All baskets rest in the water when the tub is full andthe gap onthe left is big enough for a 2 gallon bucket for washing my material in the classifier.
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I pretty much agree with with what you have done and I like the classifier. Like you say you can reduce a lot of material quickly to -1/8" cons to run through the cube. I made a small funnel that is on the bottom of the cube that directs the flow into a 3 gal pail that sits in my recirculating tub. The flow comes out of the cube and goes into the 3 gal bucket, the sand stays in the bucket and I pull it out and dump it ever time it gets close to full. The dirt and excess water run out of the bucket and into the recirc tub the back into the pump which sits in a window screen filter pail that hangs above the bottom of the tub. That keeps all the floating debris from entering the pump and cloging it or the hose up. I'm planning on getting the new classifer that Mike just came up with so I can use the cube as a recirculating beach box or in lieu of a dry washer. Everything is stored for winter now so I don't have any photo's of it, but when I get it all done the way I want, I will post a few. I think that a small trommel would work real well instead of your static classifier, and with it I don't think that two folks shoveling into it would overload the cube. Time will tell. Good luck. Dickb
It took me two weeks to design and build. First and foremost you need to purchase the tub. There are a lot of tube out there so get the one you will be using and get the measurements from that. Make the support frame big enough to take advantage of as much space of the tub as possible. The front to back support beams are the longest parts to extend ans support the classifier. The lowest basket is the same size as the support frame. Each frame is 1/2 inch smaller as you go up. I got all the material at Lowe's and Home Depot. The nuts and bolts I got at Ace hardware. I started with the base frame and then made the next frame 1/2 inch smaller. Then made the next a half inch smaller and then the last frame 1/2 inch smaller. When stacked, the frames look like a pyramid with 1/4 inch steps. With the frames stacked, I was able to see how many spacer bars I needed to make the hinges line up. I used aluminum strapping that was the same width as the frame angled aluminum. Basically using the straps as shims. When the hinges are secured to the frames the classifier is still shaped like a pyramid. Once the hinges were secured in place with nuts, bolts and washers you need to make the basket support straps. Start with the top basket making sure the straps will submerge into the water two inches when the tub is full of water. The next basket will extend 1 1/2 to 2 inches below the first basket and the last basket (the one for the 1/8 inch screen) will be 1 1/2 to 2 inches below the second screen. I just bent the straps using a vice. The hardest part was cutting the screens to fit the baskets. Basically a lot of trial and error. I made sure there was enough material to wrap the corners and used picture wire from Home Depot to sew the corners together. Make sure when you cut the screens leave enough material to wrap around 1/2 inch strapping which you will uses to help hold the basket material in place under the frames. If you look carefully you can see individual peices of strapping between the basket supports where they are secured to the framing. That is basically it. And yes the second screen is 1/2 inch lol. If I used 1/4 inch screen the material would not flow through very easy since it would clog. By using the 1/2 inch screen it makes it easier for the material to sift through. Good luck.
Hi Kyle, I recently used it for two weeks in a place that only had flour gold. It held up great. It weighs about forty lbs. I was able to classify a full five gallon bucket in a minute. It would take about an hour and a half to fill the tub with about fifty gallons of material. Then I ran the material through the gold cube. As far as hooking up a vibrating motor, I would leave that to someone else. For me there is no need to go through the trouble since it works just fine the way it is. I had a lot of comments on it at the outing I attended and everyone loved it. I even had someone take measurements so he could build it for himself and another person make a video for his club.
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I pretty much agree with with what you have done and I like the classifier. Like you say you can reduce a lot of material quickly to -1/8" cons to run through the cube. I made a small funnel that is on the bottom of the cube that directs the flow into a 3 gal pail that sits in my recirculating tub. The flow comes out of the cube and goes into the 3 gal bucket, the sand stays in the bucket and I pull it out and dump it ever time it gets close to full. The dirt and excess water run out of the bucket and into the recirc tub the back into the pump which sits in a window screen filter pail that hangs above the bottom of the tub. That keeps all the floating debris from entering the pump and cloging it or the hose up. I'm planning on getting the new classifer that Mike just came up with so I can use the cube as a recirculating beach box or in lieu of a dry washer. Everything is stored for winter now so I don't have any photo's of it, but when I get it all done the way I want, I will post a few. I think that a small trommel would work real well instead of your static classifier, and with it I don't think that two folks shoveling into it would overload the cube. Time will tell. Good luck. Dickb
It took me two weeks to design and build. First and foremost you need to purchase the tub. There are a lot of tube out there so get the one you will be using and get the measurements from that. Make the support frame big enough to take advantage of as much space of the tub as possible. The front to back support beams are the longest parts to extend ans support the classifier. The lowest basket is the same size as the support frame. Each frame is 1/2 inch smaller as you go up. I got all the material at Lowe's and Home Depot. The nuts and bolts I got at Ace hardware. I started with the base frame and then made the next frame 1/2 inch smaller. Then made the next a half inch smaller and then the last frame 1/2 inch smaller. When stacked, the frames look like a pyramid with 1/4 inch steps. With the frames stacked, I was able to see how many spacer bars I needed to make the hinges line up. I used aluminum strapping that was the same width as the frame angled aluminum. Basically using the straps as shims. When the hinges are secured to the frames the classifier is still shaped like a pyramid. Once the hinges were secured in place with nuts, bolts and washers you need to make the basket support straps. Start with the top basket making sure the straps will submerge into the water two inches when the tub is full of water. The next basket will extend 1 1/2 to 2 inches below the first basket and the last basket (the one for the 1/8 inch screen) will be 1 1/2 to 2 inches below the second screen. I just bent the straps using a vice. The hardest part was cutting the screens to fit the baskets. Basically a lot of trial and error. I made sure there was enough material to wrap the corners and used picture wire from Home Depot to sew the corners together. Make sure when you cut the screens leave enough material to wrap around 1/2 inch strapping which you will uses to help hold the basket material in place under the frames. If you look carefully you can see individual peices of strapping between the basket supports where they are secured to the framing. That is basically it. And yes the second screen is 1/2 inch lol. If I used 1/4 inch screen the material would not flow through very easy since it would clog. By using the 1/2 inch screen it makes it easier for the material to sift through. Good luck.
What are the measurements? If you don't mind me asking. I'd like to make one. Are the parts easy to come by?
thats awsome i like it a lot
Thats a heck of an idea
ARE YOU SURE THAT THE SECOND STAGE IS 1/2 I LOOKS MORE LIKE 1/4 BUT I HAVE BEEN WRONG BEFORE.SORRY ABOUT THE CAPS.
Hi Kyle, I recently used it for two weeks in a place that only had flour gold. It held up great. It weighs about forty lbs. I was able to classify a full five gallon bucket in a minute. It would take about an hour and a half to fill the tub with about fifty gallons of material. Then I ran the material through the gold cube. As far as hooking up a vibrating motor, I would leave that to someone else. For me there is no need to go through the trouble since it works just fine the way it is. I had a lot of comments on it at the outing I attended and everyone loved it. I even had someone take measurements so he could build it for himself and another person make a video for his club.
You should find a way to hook up a vibrating motor. That would be cool. How much do you think it weighs?