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Thread: My DIY 15" Trommel Project

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  1. #1
    Charter Member
    us
    I can dig it! "WP"

    Mar 2007
    Bounty Hunter's, Whites TM 808, Whites GMT, Suction Dredges, Hand Dredges, Trommels, Gold Vacs, High Bankers, Fluid bed Gold Traps, Gold Pans, Sluices, Dry Washers, Miller Tables, Rp4 Wave table, etc.
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    My DIY 15

    Trying to see how cheap I can build a decent 15" gold trommel........

    Using a drainage pipe 15" inside diameter 4 feet long. cost: FREE from a local excavating Co. *Note: it's smoothwall ( NOT ribbed) on the inside.
    I modified an aluminum bakers rack to fit the tube that I picked up at a salvage yard for $20.
    The wheels were bought on sale at Harbor Freight for $3.99 ea.
    The supports for the wheels were salvaged from a discarded aluminum lawn chair.

    Total weight so far: 30lbs. Total cost so far $36

    It's a start
    Click image for larger version. 

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    GG~
    Last edited by Goodyguy; Jan 29, 2013 at 11:51 AM.
    ~Diggin The Adventure~
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  2. #2

    May 2005
    St. Louis, missouri
    3,100
    705 times

    Re: DIY Inexpensive Trommel

    good start but instead of the pipe your useing why not PVC pipe and cut out squares and install small screen for classification and slip it inside. cleanout of the drain tube looks like itll be akward.

  3. #3
    Charter Member
    us
    I can dig it! "WP"

    Mar 2007
    Bounty Hunter's, Whites TM 808, Whites GMT, Suction Dredges, Hand Dredges, Trommels, Gold Vacs, High Bankers, Fluid bed Gold Traps, Gold Pans, Sluices, Dry Washers, Miller Tables, Rp4 Wave table, etc.
    4,652
    1875 times
    All Types Of Treasure Hunting

    Re: DIY Inexpensive Trommel

    Quote Originally Posted by russau
    good start but instead of the pipe your useing why not PVC pipe and cut out squares and install small screen for classification and slip it inside. cleanout of the drain tube looks like itll be akward.
    The tube is completely smooth on the inside & only ribbed on the outside for strength, plus the built in channels on the outside are a great place for the wheels to ride and hold the tube in place besides making a good channel for the drive belt to ride

    I'm just going to drill 1/2" holes between four of the ribs near one end of the tube for classifying. I will then line the smooth wall inside with 1/2" grid heavy duty hardware cloth (that I found in someones trash) for wear prevention and break up and rotation of any clay based material.

    GG~
    ~Diggin The Adventure~
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  4. #4
    us
    Jun 2009
    Blue Ridge, South Carolina
    818
    292 times

    Re: DIY Inexpensive Trommel

    Nice start man, I love seeing others DIY equipment. The cost for that one sounds great and sure beats retail. I am going to post some pics of the high banker I built soon, and some of the gold it caught.
    Sample till you find the hot spot, then mine it till its gone! Then start over...

  5. #5
    Conservative Cherokee "WP" (Wolf Pack 4Ever)

    Jan 2008
    Louisiana
    Explorer II & Garrett 2500 w/Treasure Hound
    1,782
    69 times

    Re: DIY Inexpensive Trommel

    Buddy, You figure out how ya gonna turn that thing yet?

  6. #6
    Charter Member
    us
    I can dig it! "WP"

    Mar 2007
    Bounty Hunter's, Whites TM 808, Whites GMT, Suction Dredges, Hand Dredges, Trommels, Gold Vacs, High Bankers, Fluid bed Gold Traps, Gold Pans, Sluices, Dry Washers, Miller Tables, Rp4 Wave table, etc.
    4,652
    1875 times
    All Types Of Treasure Hunting

    Re: DIY Inexpensive Trommel

    Quote Originally Posted by GrayCloud
    Buddy, You figure out how ya gonna turn that thing yet?
    Ya mean it's gotta turn

    Well I was planning on using a weed eater motor and a belt
    If that doesn't work, I may have to put a rubber band on it like the wind up prop on a toy airplane

    GG~
    ~Diggin The Adventure~
    Visit My Personal Forum Pages

  7. #7
    us
    Apr 2010
    137
    6 times

    Re: DIY Inexpensive Trommel

    This is looking good. You might already know this but dont drill through the thick part of the pipe because most of them are hollow in the corregated part. Keep posting.

  8. #8
    Charter Member
    us
    I can dig it! "WP"

    Mar 2007
    Bounty Hunter's, Whites TM 808, Whites GMT, Suction Dredges, Hand Dredges, Trommels, Gold Vacs, High Bankers, Fluid bed Gold Traps, Gold Pans, Sluices, Dry Washers, Miller Tables, Rp4 Wave table, etc.
    4,652
    1875 times
    All Types Of Treasure Hunting

    Re: DIY Inexpensive Trommel

    Quote Originally Posted by Caminochaos
    This is looking good. You might already know this but dont drill through the thick part of the pipe because most of them are hollow in the corregated part. Keep posting.
    Thanks Caminochaos

    Yep I have to drill between the ribs only

    I went to the scrap yard today to get sheet metal for fabricating the hopper. Cost: $5

    Will add photos of progress tomorrow night.

    GG~
    ~Diggin The Adventure~
    Visit My Personal Forum Pages

  9. #9
    Conservative Cherokee "WP" (Wolf Pack 4Ever)

    Jan 2008
    Louisiana
    Explorer II & Garrett 2500 w/Treasure Hound
    1,782
    69 times

    Re: DIY Inexpensive Trommel

    Buddy, I am doing my best to catch some squirrels for your new trommel, but I am just not having any luck with the traps. Got a lead on a couple of beavers and the good thing is those ole boys are waterproof.
    Just try to finish the thing before I finish my tour here in Tulsa.

  10. #10
    us
    Nov 2004
    Edwards,Missouri
    MXT - DeLeon - Gamma 6000
    5,602
    35 times

    Re: DIY Inexpensive Trommel

    Good work.It looks like a rotating sluice.

  11. #11
    us
    Apr 2011
    Florence S.C.
    70
    26 times
    All Types Of Treasure Hunting

    Re: DIY Inexpensive Trommel

    Goodyguy,I'm building a tromel out of the same pipe you are,only diff instead of drilling holes in pipe,I had expanded metal rolled to fit inside pipe,cut pipe into 2 pieces for ends w/expanded metal for helping hold material in for scrubbing and for classified material to fall out.Yours looks good,how are you going to run sluice?
    Seen it all,Done it all,Can't remember most of it.

  12. #12
    Charter Member
    us
    I can dig it! "WP"

    Mar 2007
    Bounty Hunter's, Whites TM 808, Whites GMT, Suction Dredges, Hand Dredges, Trommels, Gold Vacs, High Bankers, Fluid bed Gold Traps, Gold Pans, Sluices, Dry Washers, Miller Tables, Rp4 Wave table, etc.
    4,652
    1875 times
    All Types Of Treasure Hunting

    Re: DIY Inexpensive Trommel

    Quote Originally Posted by goldgiter
    Goodyguy,I'm building a tromel out of the same pipe you are,only diff instead of drilling holes in pipe,I had expanded metal rolled to fit inside pipe,cut pipe into 2 pieces for ends w/expanded metal for helping hold material in for scrubbing and for classified material to fall out.Yours looks good,how are you going to run sluice?
    Sounds like you are building yours Angus MacKirk style http://www.angusmackirk.com/ (scroll down)
    I will be lining the inside of my tube with 1/2" grid heavy duty hardware cloth for scrubbing plus I may add a couple of cleats for extra tumbling.

    My sluice will be out to the side instead of in line underneath.
    That way I wont need to build a return trough.

    I wanted to do a Mackirk style like you but couldn't find anyone to roll the expanded metal
    Anyway I will see how drilling holes in between four of the ribs over the sluice works out. I can always cut the drilled section out to do a MacKirk if I find a way to roll the expanded metal.

    GG~

    Hopper still under construction similar to Javelina hopper: http://wildboarprospecting.com/ Plus I will be adding a dredge feed attachment to it.


    Click image for larger version. 

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  13. #13

    May 2005
    St. Louis, missouri
    3,100
    705 times

    Re: DIY Inexpensive Trommel

    i was driving down the road here in St.Louis and saw that another gas station is being built near my home and guess what is in their pile of trash to get dumped....one of these black pipes like you used. i just may wander over there and ask about it! not that i need a trommel but if its free, i have most of the other parts needed to build this and probly sell it.

  14. #14
    Charter Member
    us
    I can dig it! "WP"

    Mar 2007
    Bounty Hunter's, Whites TM 808, Whites GMT, Suction Dredges, Hand Dredges, Trommels, Gold Vacs, High Bankers, Fluid bed Gold Traps, Gold Pans, Sluices, Dry Washers, Miller Tables, Rp4 Wave table, etc.
    4,652
    1875 times
    All Types Of Treasure Hunting

    Re: DIY Inexpensive Trommel

    Quote Originally Posted by russau
    i was driving down the road here in St.Louis and saw that another gas station is being built near my home and guess what is in their pile of trash to get dumped....one of these black pipes like you used. i just may wander over there and ask about it! not that i need a trommel but if its free, i have most of the other parts needed to build this and probly sell it.
    If you had to buy the 15" inside dia. dual wall drainage pipe retail it's about $9 a foot and the minimum length is 20 feet.
    So I would say go for it

    GG~
    ~Diggin The Adventure~
    Visit My Personal Forum Pages

  15. #15

    May 2005
    St. Louis, missouri
    3,100
    705 times

    Re: DIY Inexpensive Trommel

    i did go for it! i stopped and asked the job super about it and he pointed out the foreman incharge of the pipeing. they arent done yet but check back in a week or so and ask for ONLY him about it again!i said thanks and ill check back in a week or so! you just cant beat free. i have all of the rest of the parts in my shop!

 

 
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