I purchased a (steel)grinder off EBay and the screen was wobbly so I contacted the seller and they sent me a new screen compartment, so I was thinking of a way to use the old compartment for something instead of throwing it away. I came up with the Idea to turn it into a bubble grinder, but I don't know what size micron screen to use?

I want the best bubbly dry sift and I am saving for a bubble box but I think this would be a great travel version.

If I can find out what size is the best to use and can find it somewhere I will post a guide on how to make your own.