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Gold Prospecting
Do It Yourself (DIY) Projects
How to make a Trommel on the cheap but very effective.
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<blockquote data-quote="Goldtarget" data-source="post: 58439" data-attributes="member: 2152"><p>The first thing you'll notice is the cross piece. An irrigation place will have these and black risers. Hardware store might not have them. So i split the riser in two and rejoined it with the cross piece. white offcuts were passed through two corresponding midpoints i drilled out. In the original they used metal z shapes but i had no end of trouble, perhaps a better diyer would have more luck but in the end i went with my instinct to over engineer, and spent significantly less time building a stronger connection. Centering proved a challenge but I'll probably split the poly protruding on the outside into 4 and glue or rivet it to the barrel, until i get that t piece bored I've left it. Further down i drilled through the riser and put a aluminium shaft through for stability, again I'll pinch the extra over once I'm finished. The barrel is completed but cutting away the section for the mesh, and inserting it. Note, the stronger the mesh (broader the guage) the harder it is to get it a nice round shape. I wound it around a slightly smaller barrel but this by no means easy. My suggestion is take your time and persist, eventually it will take shape, but next time id go internally instead of externally using the pressure of the mesh to push outward on the inside of the barrel instead of man handling it while trying to fix it into position.</p></blockquote><p></p>
[QUOTE="Goldtarget, post: 58439, member: 2152"] The first thing you'll notice is the cross piece. An irrigation place will have these and black risers. Hardware store might not have them. So i split the riser in two and rejoined it with the cross piece. white offcuts were passed through two corresponding midpoints i drilled out. In the original they used metal z shapes but i had no end of trouble, perhaps a better diyer would have more luck but in the end i went with my instinct to over engineer, and spent significantly less time building a stronger connection. Centering proved a challenge but I'll probably split the poly protruding on the outside into 4 and glue or rivet it to the barrel, until i get that t piece bored I've left it. Further down i drilled through the riser and put a aluminium shaft through for stability, again I'll pinch the extra over once I'm finished. The barrel is completed but cutting away the section for the mesh, and inserting it. Note, the stronger the mesh (broader the guage) the harder it is to get it a nice round shape. I wound it around a slightly smaller barrel but this by no means easy. My suggestion is take your time and persist, eventually it will take shape, but next time id go internally instead of externally using the pressure of the mesh to push outward on the inside of the barrel instead of man handling it while trying to fix it into position. [/QUOTE]
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Gold Prospecting
Do It Yourself (DIY) Projects
How to make a Trommel on the cheap but very effective.
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