[William Miller]

anh911, using the brush is there in the documents I pointed to yesterday, somewhere.

Rondineone, just to get into perspective on your scales can you convert 500 microns to something I can draw a comparison to?
Please excuse my ignorance, I'm not from a remote backwards area, but I have no way to measure that small and asside from the ocassional discussion like this I don't use it.

In other words I know it's smaller than a "nat's ass".
How many microns in a inch or mm?

Thanks for all the hard work!