Easiest Pinwheels
10-25-2011, 08:44 AM
#82
Super Member
Join Date: Sep 2009
Location: Seattle
Posts: 1,743
Originally Posted by quilt3311
Question: don't you get bias edges on the HST's? Or am I thinking wrong?
10-25-2011, 04:03 PM
#83
Junior Member
Join Date: Dec 2010
Posts: 241
Originally Posted by SWEETPEACHES
I'm sorry. I don't mean to beat a dead horse.
I don't know how to read the chart, however, I did cut two 6 1/2" squares, sew them around all sides, cut in quarters diagonally, press open, sew them together and got an 8" pinwheel. ok, I get that.
What I don't understand is the math. IF I want to end up with a 6" pinwheel (all 4 pieces sewn together, but not sewn to other blocks, how do I figure out what size squares to start with before any sewing around the perimeter. (let's say my quilt top is going to have a 6" solid square, then a 6" pinwheel block, then another 6" solid square, and another 6" pinwheel block.. you get the idea)
Thank you. (this is going to be a post and run. it's midnight here!) I'll check back tomorrow.
I don't know how to read the chart, however, I did cut two 6 1/2" squares, sew them around all sides, cut in quarters diagonally, press open, sew them together and got an 8" pinwheel. ok, I get that.
What I don't understand is the math. IF I want to end up with a 6" pinwheel (all 4 pieces sewn together, but not sewn to other blocks, how do I figure out what size squares to start with before any sewing around the perimeter. (let's say my quilt top is going to have a 6" solid square, then a 6" pinwheel block, then another 6" solid square, and another 6" pinwheel block.. you get the idea)
Thank you. (this is going to be a post and run. it's midnight here!) I'll check back tomorrow.
If you layer "two" 2" squares, sew a 1/4" around, then cut each from corner to corner, you will end up with "four" 1" HST.
If you layer "two" 5" squares, sew 1/4" around, then cut each from corner to corner, you will end up with "four" 3 1/2" HST.
So, the first number in the chart represents the size of the "two"squares that you will layer together. The second number in the chart represents the size of the "four" HST you will end up with after cutting corner to corner.
Here are two links to two more charts, the second link has a picture and explains the math a bit more, so you may understand it better.
http://www.moonlightquilters.org/tipHSTfav.htm
http://whipup.net/2011/03/17/guest-b...are-triangles/
The sizes in each of these charts seem to vary slight from each other. I think I would test it out on my own first to see what sizes I end up with. We all vary in our cutting, sewing, pressing, etc.
I am wanting to try out this technique myself.
10-25-2011, 04:08 PM
#84
Junior Member
Join Date: Dec 2010
Posts: 241
Originally Posted by LucyInTheSky
Originally Posted by quilt3311
Question: don't you get bias edges on the HST's? Or am I thinking wrong?
To avoid bias edges on the hqt cut bias strips the size of the beginning square and then cut squares. After sewing together and cutting the 4 finished half square triangles will have straight grain edges.
11-01-2011, 08:03 PM
#85
Super Member
Join Date: Sep 2010
Location: Myrtle Beach, SC
Posts: 8,104
I used this method with 15" blocks. It works fantastically! Using 2 fabrics, and only 4 sets of 15" blocks, I have a striking quilt top. I will be bordering it to make it about 6 - 8" inches bigger. Best part is how well the points match up. The next one I do will have more blocks, and the blocks will be smaller, but I expect the same kind of results.
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