russau
Gold Member
Reed and all , Trev's pictures with measurements are over on yahoogroups and look for Goldminer's it's there somewhere.
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I powered my 4" sub-dredge with a 3.5hp briggs with a P100, moved sand pretty good, put on small dock bumpers
when I ran it, the water flowing through it would have a dynamic effect with an action that you could feel,
It would sink down & settle into place behind me as I worked then rise up when the engine shut off.
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View attachment 1521446 . View attachment 1521447
Problem I see with an electric subby is not having air.
I prefer dredge floats also with adjustable arms to hold and adjust for correct pitch in various currents and eliminate side to side motion that empties riffles.. The suction nozzle style has superior recovery as then the hose helps settle the gold to the bottom of the flow for better recovery instead of the pj remix at the box-RIP dredging---welll Ochoa STILL hasn't issued his final ruling so.......John
pretty proud of your plastic nozzles. Any video of it moving massive amounts of gravel?
carbon...really carbon.
Fact regardless of what Tesla said. The six inch version of that is not as useful, does not have the depth capability or power to move as much gravel as the gas powered six inch version.
PERIOD!!
Pride and calling me names does not change physics.
Even if testing it in a bathtub made you think so.
the main problem with bilge pumps is the impeller its designed for volume
and any reductions the water will just spin, in a standard log the jet/ orifice is like 1/2 to 3/4 inch
it requires 35-45 psi at least, maybe the motor could be mated to a spa pump or
you could redesign the impeller and housing using a 3D printer?
"bilge pump" 3D Models to Print - yeggi
https://www.thingiverse.com/thing:1651315 ** Change the Impeller to one like in a spa pump
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There are tanks? Or lots of other choices
HydroAir: Keene Engineering Online
Too bad, looks like the naysayers scared him off... I started reading about splitting the positive connections, his dredge looks great, just put a short hose on the back for a tailings stacker and take off, he really wasn't given a fair chance to share his knowledge. It looks a lot like Trev's but really up with the times. Hopefully he just kicks the naysayers to the curb and continues.
https://emediapress.com/2017/08/31/poor-mans-split-the-positive-battery-swapper-by-rs-stafford/
Good on ya reed.
I will given you detailed instructions on this circuit.
I have a lot easier way of doing it.
If you can master this circuit,you can run your house off it.
No more carrying heavy batteries ,just split that ***** positive.
I put these dredges out there for people with not a lot of $$$ in their pocket, more so for people in other countries than yours.
If you have 200-300 us dollars,its done.
If these can make a difference in low economic countries,to someone who is trying to support their families,off gold.(They will)
'
The weight,processing,ease of use ,and if you can master the splitting positive your made,life's easy.