Due to many requests in the comments of my first video on the optimal amount of grit to use in a rock tumbler, I decided to do another video with more trials. This time I tested 1, 2, 3, and 4 tablespoons of grit. My results were somewhat different than the first time I did this experiment. Here's the first video in case you missed it: • What Is the Optimal Am...
Data:
Measurements in grams
Round One
1 Tbsp Barrel 808-774 4.2%
2 Tbsp Barrel 807-758 6.1%
3 Tbsp Barrel 809-760 6.1%
4 Tbsp Barrel 807-756 6.3%
Round Two
1 Tbsp Barrel 820-797 2.8%
2 Tbsp Barrel 820-789 3.8%
3 Tbsp Barrel 819-771 5.9%
4 Tbsp Barrel 820-766 6.6%
Round Three
1 Tbsp Barrel 817-794 2.8%
2 Tbsp Barrel 817-776 5.0%
3 Tbsp Barrel 817-772 5.5%
4 Tbsp Barrel 818-772 5.6%
Three Week Total
1 Tbsp Barrel 2445-2365 3.3% 26.7 g/Tbsp
2 Tbsp Barrel 2444-2323 5.0% 20.2 g/Tbsp
3 Tbsp Barrel 2445-2303 5.8% 15.8 g/Tbsp
4 Tbsp Barrel 2445-2294 6.2% 12.6 g/Tbsp
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Kingsley North is a lapidary store in Michigan's U.P. They make a great cab machine and sell many other brands too. They have a huge selection rough rock, tumblers, grit, jewelry supplies etc. at good prices. I buy most of my coarse grit from here in 45 lb. bags. It's the best price I have found. If you buy using the following link, I make a small commission.
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29 сен 2024