When material weight standards change,
you can update the unit weights of material groups with the Global Edit - Unit
Weight command. For example, you can use the Global Edit - Unit
Weight command to update the weights of newly added shapes. Tekla
PowerFab then calculates the weights based on the existing dimensions.
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Go to .
The Shape/Grade/Size Maintenance dialog opens.
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Click the Shape/Grade/Size Maintenance ribbon tab.
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On the menu, select
Global Edit - Unit Weight.
The Shapes / Grades / Sizes Global Edit - Unit
Weight dialog opens.

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In the
Shape list, select the desired shape.
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In the Material list, select the desired material group.
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In the field on the right side
of the Material list, define the weight of the material.
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Click the arrow buttons to move the dimensions whose weights you want to update to the Included list.
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Click Update.