This segment discusses how to use a grinder. You don’t have to have a grinder to make stained glass, but it helps to make a better product. It smooths the edges and makes them square, so when the pattern is put together the pieces fit tightly together. Whereas if you don’t use a grinder the edges won’t be smooth, and there is more of a chance of gaps. If you can make decent cuts though, most gaps will be filled with solder, so it may not be a huge deal if you don’t invest in one.
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