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Fusing Straight Lines

This is part three of a multi-part tip on fusing to achieve sharp, crisp lines.  Click here to go to part one, which also includes an example photograph.

Here are a few more factors to consider when you want sharp, crisp lines between fused strips of glass.

4.  Viscosity of the glass

A glass that is more viscous will create a fuzzier line than a glass with a lower viscosity.  Strips of soft black glass, for instance, will be more wavy when fused than strips of white glass. 

5.  The flatness of the kiln shelf

Fusing directly on a kiln washed shelf will produce cleaner edges than fusing on fiber paper, and the more texture in the paper (or on the shelf) the greater the tendency of the edges to be wavy.

6.  Whether or not the piece is dammed

Damming strips will produce straighter lines than firing undammed.  This is because the dam helps hold the strips in place and keeps them from moving apart and causing wavy lines.

Coming soon -- a sample firing schedule to help you achieve straighter lines on your strip pieces.

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Copyright 2007 Brad Walker.  All rights reserved. 

Thanks to Steve Immerman, Cynthia Oliver, and Andrew Westreich for suggestions in this tip.

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