How do you cut stained glass?

I found a website [see below] with very good information. Here it is and I hope it helps you too. It explains more than stained glass cutting.

COMMENT:

Cutting of stained glass is almost a Zen experience. You have to know if the glass is warm enough, know the proper frying bacon sound that the scoring tool makes, and trust that when you flex with your thumbs that you won't sever anything important.

When it works it feels great. When it doesn't you are left with an oddly shaped piece of pricey waste glass.

The physical parts are:

• You scratch a line into the surface of the glass with a small tool with a carbide wheel at its tip. You then flex the glass slightly over the scratch . A crack follows the scored line and you have two pieces.
• Alternately there are glass bandsaws with a small diamond imbedded wire blade that lets you saw the glass like a board.