I am posting this here since there are folks on this forum from Arizona. I was wondering if anyone might have information like rules, regulations or possibly links to which agencies regulate and permit suction dredging. I know, there is not much water in AZ, but there must be places that a person might find gold in streams.
By Hepplewhite Explorations
Since we cannot get out into the field to prospect properly right now, figured we'd share with you a piece of equipment we use for testing in our garage and also in the field for hard to get to places. Its great for hiking in, testing several locations and then coming back with larger equipment!!
Hope everyone is well, stay safe!
By Jim in Idaho
Along with working on the house this winter, I finally got around to drawing-up, and building a new driver for my shaker table.
I really like Wilfley's designs, and wanted my driver to have the same adjustments as his. Working about 4 hours/day, it took me about 2 months to get it drawn and built, along with a few modifications that arose during the build. Finally finished yesterday, and made a video. I'm still polishing up the plans, and will probably have to disassemble it to take pics for the build instructions etc. I'll be selling the plans and, instructions at some point this spring, for the DIY clan.
OK, so this time around, I have made things a LOT easier to work with, and expandability is key here. Sure, it's not huge, but for a portable system, this should work great.
The key thing here is that I wanted a system that could be printed with little to no waste material, and yet have the structure and strength to hold up for a long time. This is what I have come up with so far. This will likely be my last design for this version. I'm only tweaking a few dimensions here, as well as making new modules that can be added to it.
Modules are 276mm long by 104mm wide, max height of 106mm (virtually) unlimited stackability Use modules in any order you want Use whatever sluice mat you want (to a point) Best used with a 5 gallon bucket (self-recirculating water system) Current Modules:
Feed hopper Mat tray Bottom Support
Key note here is that those modules, even with the tilt, print FLAT on a printer, and unless something drastic changes, will require NO supports. That means nothing to clean up after the print is done. Pull it off the printer, and use it right away!
The cutaway view shows you how it currently operates. I did away with the "G-Force" drop whatever that the Gold Cube has. I wanted better flow, and didn't think that part was completely necessary. Some of those angles might change by the time the final version rolls around. I am still waiting on my four 200GPH water pumps so I can physically test flow rates.
I know this is still very small compared to a lot of the others that you can shovel hundreds of pounds a day into, but this is meant more for fine cleanup or to run pre-classified material through, although this should be able to do a bit of classifying on it's own.
Also, as I design more modules, I might include a couple modules that will spray wash and classify before sending down the smaller material to be run over the mats.
I would also like to design a sort of trommel as one of the modules. Would have to be geared to run off of some water pressure, so I don't have to include a motor and all the electronics and extra building parts that come with it. This is one part that would have to be made from metal, as anything printed would get destroyed very quickly, so I'm still contemplating this one. Remember, this system isn't meant to drop boulders into. I'd say you can safely feed in no larger than 8-mesh material. Depending on water flow, you might get away with 4-mesh, but I wouldn't count on it.
More info coming as I get more work done, and get a chance to print some physical models.
By Dean Stone
Hi all, hope everyone is ready for dredging . I have a 2" Keene dredge, with the hard floats. Dose anyone how much air to put in the floats? Don't want to blow them up, but need them to float good. Any help would be good, I tried to look on line but could not find how much pressure to put in them. Thanks Dean