![]() Use a bucket and a screen to collect used grit and slurry. As always, it is advised not to throw used grit down a drain as plumbing will be damaged. This is really important as the coarser grits from one step will act adversely in proceeding steps,scratching rocks as you are refining them with finer media. Rotary tumblers use a four step goal oriented tumbling process:īetween each of the four steps remove, thoroughly rinse your rocks, clean out the barrel and remove any grit or rock debris. Avoid using unusually odd and non-rounded shaped rocks with the more common rounded shapes as these will be more difficult to sculpt. Gather enough rocks to fill your barrel between 2/3 and 3/4 full. Pick rocks that are of the same hardness and similar size ratio (the biggest should be no more than twice the smallest) to coordinate their development in the tumbling process. The tumbling process starts with good rock selection. You will see in some of our kits that offer extra items, some additional steps and guides to the tumbling process. We Offer a Pre-measured Grit Solutionīe sure to see our grit kit designed specifically for National Geographic tumblers You might find the rock hardness information helpful on the Mohs Scale reference. Presented here are general guidelines and the most common consensus on tumbling methods. Your tumbler manufacturer may have specific instructions for your tumbler. Many variations can be found in regard to tumbling instructions that make adjustments for different tumbling equipment and different types of rocks. In similarity to other rotary models you will generally be following the most common instructions for general rock tumbling in Rotary Tumblers. Also the stones have to be of a smaller size due to barrel capacity. ![]() There is a precise and small amount of media that is required. This small rotary rock tumbler operates differently because of its size. ![]() ![]() You can discover the materials that make up the planet and from them create beautiful smaller tumbled rocks. You will discover the material science of rocks and run your machine properly to produce wonderful small gems from rocks to use as jewelry or other decorative items. These directions will help you operate your National Geographic tumbler to learn about the geology wonders of rock. ![]()
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