Math help needed
10-05-2011, 04:10 AM
#3
Power Poster
Join Date: Apr 2011
Location: Ontario, Canada
Posts: 17,699
When calculating the piece sizes, start with the finished size you want when the block is sewn into the quilt. Then once you know that, add on the seam allowances
Finished size = 2"
3x3 for a nine patch, each piece needs to be 1/3 of 2" => 2/3"
Add on seam allowances, 1/4" for each side => 2/3" + 1/2"
Which means each of the nine pieces need to be 1-1/6" ... not easily measured!
Finished size = 2"
3x3 for a nine patch, each piece needs to be 1/3 of 2" => 2/3"
Add on seam allowances, 1/4" for each side => 2/3" + 1/2"
Which means each of the nine pieces need to be 1-1/6" ... not easily measured!
10-05-2011, 04:13 AM
#4
Senior Member
Join Date: Jul 2011
Location: OFallon, MO
Posts: 425
She did the math for yah! Thats gonna be a itzy bitzy 9P! Let us see when done! May need to PP that one to keep it square!
I think it will also be easier to stich up PP.
I think it will also be easier to stich up PP.
Originally Posted by QuiltE
When calculating the piece sizes, start with the finished size you want when the block is sewn into the quilt. Then once you know that, add on the seam allowances
Finished size = 2"
3x3 for a nine patch, each piece needs to be 1/3 of 2" => 2/3"
Add on seam allowances, 1/4" for each side => 2/3" + 1/2"
Which means each of the nine pieces need to be 1-1/6" ... not easily measured!
Finished size = 2"
3x3 for a nine patch, each piece needs to be 1/3 of 2" => 2/3"
Add on seam allowances, 1/4" for each side => 2/3" + 1/2"
Which means each of the nine pieces need to be 1-1/6" ... not easily measured!
10-05-2011, 04:20 AM
#6
Super Member
Join Date: Nov 2008
Posts: 1,665
I see others have beat me to the answer...lol...but I'll go ahead and add my math too.
Cut each block 1.17inch.
That would give you the 1/4inch seam allowance on all sides. (0.67inch without seam allowances).
3blocks across @ 0.67inch=2.01inch.
Please post a photo of the item when done!
Cut each block 1.17inch.
That would give you the 1/4inch seam allowance on all sides. (0.67inch without seam allowances).
3blocks across @ 0.67inch=2.01inch.
Please post a photo of the item when done!
10-05-2011, 04:38 AM
#7
Senior Member
Thread Starter
Join Date: Jul 2011
Location: Maine, U.S.A.
Posts: 536
lol, I had gotten as far as 1 and a 1/6, just having trouble making the leap from that to the increments giving on a ruler.
I would be sewing together strips, then cutting them down into rows of blocks. I'm not making a whole quilt of these, just want four of these blocks for the corners of a larger quilt block!
Paper piecing, hmmm. I just learned how to do that last night. Maybe I should give that an attempt.
I would be sewing together strips, then cutting them down into rows of blocks. I'm not making a whole quilt of these, just want four of these blocks for the corners of a larger quilt block!
Paper piecing, hmmm. I just learned how to do that last night. Maybe I should give that an attempt.
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