Good morning readers. Thanks for coming by.
Most of you probably won’t find this of interest, but possibly Eddie and Keith might. Keith saw earlier efforts directed to a similar end back during the early 1990s, and I described something similar to Eddie last December.
The idea here’s to have a portable enough contraption to be light and easy to manage through some walking distance, fast enough in the assembly, unstable enough to allow a lot of shaking. The whirlygig on the weedwhopper needs to be out of balance enough to provide the vibration. But the bearing will be side loaded, so it might self destruct before enough use to justify it.
The next frame will be an aluminum golf-caddy on wheels, which is capable of being as unstable as the chair frames. That would also allow it to be rolled instead of carried where it’s to be used.
There’s going to have to be a grizzly up ahead of the platform/table, which might cause too much weight for this method to allow enough shaking of the table/riffles to do the job. Might also need a counter-balance at the bottom to keep an angle on the table, which will also need to be tested.
I don’t know how much adjusting will be needed on the table to keep things moving, but slowly enough so’s it doesn’t move too fast. Also don’t know how much classifying would be needed ahead of the thing, how large the material could be for it to work.
You can see the two front legs on the frame are off the ground. That’s so it can be rocked forward, both to provide instability, and to allow adjustment of the table angle. Naturally it has to have a bottom surface on the riffle/table.
But the whole thing as the huge advantage, provided it works, of not throwing up a mile-high cloud of dust. I doubt it will move as much material as a store-bought portable drywasher, but it lacks a lot of the disadvantages, and it is an inexpensive alternative.
Might be worth trying, anyway.