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math / on snails tail block

math / on snails tail block

Old 05-24-2014, 03:33 AM
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Default math / on snails tail block

I want to make shakespeare in the park my 4 center squares will be 3.5 so I have to add 4 rounds of half triangles to make 12.5
my question is each round come out with the1/2 for seam
like the first round looks like it will come out to 7, before seaming the next round.
Is this Right as I don`t want to mess up my beautiful batik!
Thanks Gale
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Old 05-24-2014, 03:39 AM
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Here is my block cut out. I was very lucky to find this very lite batik.
Gale
Attached Thumbnails snail.jpg  
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Old 05-24-2014, 04:44 AM
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Well I was way out my first round I could sq to 4 3/4 or should it be 4.5? center is 3 finished the triangle for this round were cut 3 inch sq then half the next round is 3 7/8 cut in half next round 5 1/8 cut in half last is cut 6 7/8 cut in half
Thanks Gale
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Old 05-24-2014, 05:02 AM
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I have been wanting to make one in purples and pinks but I have a pattern from a magazine that I was going to follow. Hopefully, someone will be able to post an answer to your question. It is going to be stunning using batiks.
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Old 05-24-2014, 06:04 AM
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I thought I could do this as I consider my self intermediate but because judy marint book doesn`t give each round size I`m lost. I emailed judy`site hope I get an answer.The rest of the blocks not hard but I did my fgeese not her way.
Gale
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Old 05-24-2014, 06:52 AM
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You can use this site to calculate the dimensions of a square in a square, which is what snail's trail is after the first 4 patch.

http://www.quiltersparadiseesc.com/C...Calculator.php
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Old 05-24-2014, 07:03 AM
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THanks Dunster, was wondering if there was a chart.so my 3 inch finished center sec roud should be 4 3/4 according to chart wich I have ope is works to 12.5
ThanksGale
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Old 05-24-2014, 07:13 AM
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Originally Posted by dunster View Post
You can use this site to calculate the dimensions of a square in a square, which is what snail's trail is after the first 4 patch.

http://www.quiltersparadiseesc.com/C...Calculator.php
I must be dense because I couldn`t work it up to 125
Think I will make a trip to qs.
Thanks anyway Gale
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Old 05-24-2014, 07:55 AM
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Gale - Are you looking to find out what size each "square" should measure after sewing each round? For a 12 " finished" block it will end up as 12.5 unfinished so .....

the first 4 patch unfinished should be 3 1/2"
The second square unfinished should be about 4 3/4"
The next square unfinished should be 6 1/2"
The next unfinished should be 9"
and the last will be 12.5" unfinished
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Old 05-24-2014, 02:06 PM
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Originally Posted by eparys View Post
Gale - Are you looking to find out what size each "square" should measure after sewing each round? For a 12 " finished" block it will end up as 12.5 unfinished so .....

the first 4 patch unfinished should be 3 1/2"
The second square unfinished should be about 4 3/4"
The next square unfinished should be 6 1/2"
The next unfinished should be 9"
and the last will be 12.5" unfinished
Thank you! I will try it out! This is clear.
Gale
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