free plans to build gold trommel « BINQ Mining
Jul 01, 2013· Trommel Build – TreasureNet. A while back I had an idea about building a 3' long trommel with 4 to 5 tubes inside each other. … We built a computer model of what my plan was. …. I usually run 1/4" though as the gold here is pretty small. …. Welding is free. »More detailed