A person could ask: "You mean to tell me that with all the variation in rock and all the variation in sizes and types of tumbler and rotation speed and tumbler barrels agitation that the standard four pack grit kit they use is all the same.That is wild and it reminds me, there was this guy who used to be heard on the radio in one of those infomercials and what he said about the oil of oregano is a lot like what people say about the standard four pack for rotary rock tumblers.
He would say it's good for this and it's that. People would call in because it was a talk show with queries about anything from cancer, to skin rashes to depression and anxiety. They would ask would it help them. And in rapid fire succession, no matter what it the illness, he would say , good for that , works on that, endlessly affirming the appropriateness and efficacy of oil of oregano.
Really, the same product works on all of these things -- what a miracle."
Challenging established tradition
In the same way it is said that the one size fits all four pack handles everything. That can't be true or at least it seems unlikely. There must be some explanation. The fact is there are different applications using the standard four pack of grit as it is arranged. Certainly time is still a factor. Different rocks are prescribed varying amounts of time dependent on hardness and shape.
The Controversy and the Vision
You would think that with all of the technology and all of the innovation, and all of the sensors and data and research, that we would have a more precise, less shotgun approach to tumbling . But we don't have it, we just have people write instructions that say: Hey, put in the rocks with the grit, cover it with water and let her rip. Really no one is sharing the information about the special differences between two completely different types of rocks not just their mohs hardness but their interior composition, the lines, the strata. The elements of the stones that you would want to bring out and there must be a difference of how to process these two types . It just seems that there is really something wrong with all if this situation.
It cant be that the instructions for things are all the same . Hey just keep looking at the barrel contents and go from there.
Why don't we know precisely what the 120 grit is doing and have an idea of when to add it.
There should be a diagram that tells you what is really happening in the tumbling process. I mean, it is sort of mathematical and it says well we need to take off x amount of rock in this edge. And we therefore need to do the calculation about how fast the barrel turn and how many times over days and say that a a surface comes into contact with grit 5,000 times or whatever and each time it takes off x microns of surface.
The Demands are Specific
And do a little diagram about how that changes over time with repetition. Answer questions like, "why rocks don't follow the shape you would like them too and how to make them shaped to your wishes"
Always consider the interaction of one rock to another. FORGET about grit – rocks grind rocks! This is where experience comes into play. But a lot of experience can -be made up with a focused imagination. Your own considerations and mind-play will lead you to the right conclusions about the process.
Perhaps an Answer
We think that this formulation and offers the solution and represents an advancement in the science of rock tumbling. It engages the question of precision and the variance in rock types. It brings extra tools in accomplishing the process of dealing with irregular rocks allowing for fine-tuning of the abrasion process.