Chart for Enlarging/Reducing Patters
#4
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However, remember if you are enlarging a pattern, you should enlarge the finished size of the piece/shape without the seam allowance. Then add the seam allowance because otherwise the seam allowance will be too large.
#7
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Originally Posted by Holice
However, remember if you are enlarging a pattern, you should enlarge the finished size of the piece/shape without the seam allowance. Then add the seam allowance because otherwise the seam allowance will be too large.
Example: 2 x 4 finished piece is cut 2.5 x 4.5
If one wanted to make a 4 x 8 finished piece, one would cut a 4.5 x 8.5 piece, not a 5 x 9 piece.
#8
Another way: to be able to get uneven numbers not on the chart - for example 4-1/4" up to 9-3/4" -- Divide 9.75 by 4.25 and you get 229% Do the increasing on the finished block size, the 4-1/2, then add the 1/4" seam to new 9-3/4" making the cut size 10"
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07-01-2010 06:26 PM