formula for correct hourglass block size
#1
I want to make hourglass blocks that are 5.5" (5" finished).
I know to make HSTs you cut your fabric 7/8" larger.
But I seem to remember that if you're making an hourglass you need to cut the fabric even larger?
I'm thinking 1.25" larger. Am I correct?
My brain cells aren't what they used to be and I couldn't find the formula (if there is one) online.
Thanks
I know to make HSTs you cut your fabric 7/8" larger.
But I seem to remember that if you're making an hourglass you need to cut the fabric even larger?
I'm thinking 1.25" larger. Am I correct?
My brain cells aren't what they used to be and I couldn't find the formula (if there is one) online.
Thanks
#4
Power Poster
Join Date: Mar 2009
Posts: 15,639
Originally Posted by AlwaysQuilting
I know to make HSTs you cut your fabric 7/8" larger.
Oh, and good luck with your hour glass.
#5
Super Member
Join Date: May 2007
Location: NE Pa.
Posts: 1,738
I just finished making some this afternoon. I wanted a finished 6" block. So I cut two squares of contrasting fabric 7 1/2 in.l placed them right sides together. Then I drew aline diagonally across the fabric and sewed 1/4 inch on either side. Then I cut it down the middle and ironed it opened. Then I placed the sq. right side together again with oppisite sides facing and drew another line diagonally and sewed again down both sides and cut it iin half. Opened it up, pressed and squared it up to 6 1/2 inches. Perfect hour glass.
#6
Originally Posted by mic-pa
I just finished making some this afternoon. I wanted a finished 6" block. So I cut two squares of contrasting fabric 7 1/2 in.l placed them right sides together. Then I drew aline diagonally across the fabric and sewed 1/4 inch on either side. Then I cut it down the middle and ironed it opened. Then I placed the sq. right side together again with oppisite sides facing and drew another line diagonally and sewed again down both sides and cut it iin half. Opened it up, pressed and squared it up to 6 1/2 inches. Perfect hour glass.
This is how I planned on making mine too but I forgot to mention it.
I didn't want to make a bunch of HSTs and then sew them together. Too slow.
I probably will cut the fabric larger than the needed amount also. Just safer that way, isn't it?
#7
Junior Member
Join Date: Mar 2011
Posts: 268
I just finished making some this afternoon. I wanted a finished 6" block. So I cut two squares of contrasting fabric 7 1/2 in.l placed them right sides together. Then I drew aline diagonally across the fabric and sewed 1/4 inch on either side. Then I cut it down the middle and ironed it opened. Then I placed the sq. right side together again with oppisite sides facing and drew another line diagonally and sewed again down both sides and cut it iin half. Opened it up, pressed and squared it up to 6 1/2 inches. Perfect hour glass.
I would like to use alternating hour glass blocks to set a block of the month quilt top.
The next question is....how do I figure out how much yardage I will need? I have a habit of running out of fabric before I am finished since when I actually did the BOM, I had no idea how I was going to set it (another UFO I'm tackling!)
I'd appreciate any input! Thanks, Barb
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