Speeding up the roughing stage: Is pea gravel the answer?

Описание к видео Speeding up the roughing stage: Is pea gravel the answer?

The roughing stage is the longest part of rock polishing, so we're always looking for ways to speed it up! In this experiment, we tested a batch of rocks with pea gravel as filler against our usual method. Both batches tumbled with 36-grit silicon carbide for two weeks. Let's see which one came out on top!
0:00 Intro
0:10 The theory
1:22 Filling the barrels
2:40 Adding the grit
4:00 Water level
4:30 Opening the barrels
5:35 Comparing the results
8:55 Rocks ready for the next stage

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