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Help me do the math

Help me do the math

Old 06-13-2011, 05:45 AM
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How do I know what size to cut fabric without a pattern? For example, how can I figure the size of a four square patch if I want to put it next to a square (like a 6 inch or something)?

I hope this makes sense. You guys have helped me so so so much as I begin this wonderful quilting journey.
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Old 06-13-2011, 05:52 AM
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Since I am mathmatically challenged, I would make the 4 patch first, then cut my squares to match that size...
I will be watching this thread for the answer too. ;)
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Old 06-13-2011, 05:53 AM
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If you're putting it next to a 6 inch square (finished size), you divide 6 by 2 (because there are two squares for each 6 inch side) to get 3", then add the .5" for seam allowances. Cut the four patch units 3.5".

HTH!
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Old 06-13-2011, 05:54 AM
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You guys are smart! :) Thanks!
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Old 06-13-2011, 06:08 AM
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Originally Posted by CoriAmD
Since I am mathmatically challenged, I would make the 4 patch first, then cut my squares to match that size...
That's the idea! Make the most pieced blocks first then cut the alternate squares.

Cut your squares for 4-patch @ 3.5".......your alternate sq. will likely be cut in the 6.5" range.
OR
Cut your squares for 4-patch @ 4".......your alternate sq. will likely be cut in the 7.5" range.

Jan in VA
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Old 06-13-2011, 06:10 AM
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each seam is 1/4" -- so 6" divided by 2 for a 4 patch is 3" + 1/4" for 1 seam - so your small 4 patch squares would be 3 1/4" for a 6 in larger square
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Old 06-13-2011, 06:29 AM
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Always start with the size you want it to finish at (after all the seams are in the quilt).

So ... for a 6" finished 4P block ....
* each of the 4Ps would be 3"x3" finished
* add on 1/4" for seams on each side
* each of the 4Ps would be 3-1/2"x3-1/2"

You can do the same for 9Ps .... and most anything else! Keep this, and you're on your way to designing your own patterns, or looking at a photo and figuring it out!
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Old 06-13-2011, 06:32 AM
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I'm a math teacher ... and you all get an A+ !!
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Old 06-13-2011, 06:38 AM
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forget the math initially and draw what you want on graft paper and measure.
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Old 06-13-2011, 08:31 AM
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sounds reasonable
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