Optimal Amount of Tumbling Grit—Part 2

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: https://youtu.be/9QV8Dj15LOo

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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– HIGHLAND PARK LAPIDARY –
Highland Park makes some high quality tools at reasonable prices. I have two of their tumblers. They're the most rugged tumblers I have seen. They also make a wide range of other lapidary tools, including saws, sphere machines, cabbers, etc. They also have the best price on grit that I have found.
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– KINGSLEY NORTH –
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 of rough rock, tumblers, grit, jewelry supplies etc. at good prices. If you buy using the following link, I make a small commission.
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This is the cabbing machine I use:
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http://rockshed.com

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Видео Optimal Amount of Tumbling Grit—Part 2 канала Michigan Rocks