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Forum > Quilters' Corner > Quilting Question..Half Square Triangles ( Moderated by Sharon1952)

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Quilting Question..Half Square Triangles
how does she do that??
jannw
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jannw
Washington USA
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Date: 10/12/13 1:14 PM

I might be missing something obvious....

I found this blog the other day and rather liked the quilt pictured, but I noticed that her HST didn't reach the corners.
After a bit of thought, I realized that she has a seam allowance on them. I've been making mine the same way she illustrates, but mine go to the corners, with no seam allowance, even before trimming. What am I missing or doing differently?

Humble Quilts


-- Edited on 10/12/13 1:15 PM --

------
2009-113.25 yds
2010-115.5
2011-80.25+30+donated
2012 86.3 yds..
2013 21.0
Everyone who sews seriously has a stockpile of fabrics, because it is natural to purchase more than can be sewn in any one season" Singer, Timesaving Sewing, 1987

LynnRowe
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In reply to jannw <<


Date: 10/12/13 1:25 PM

Hers go corner to corner, too. The corner is reduced when sewn onto the block and preceding HSTs, which leaves the seam allowance you're seeing on the unsewn edges.


-- Edited on 10/12/13 1:32 PM --

------
I heart Woo (HimmyCat). Until we meet again, my beautiful little boy. I love you.

Franksdottir

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In reply to jannw <<


Date: 10/12/13 5:06 PM

If you don't have a seam allowance does that mean that all of your points on the outside are blunted?

------
Barb

LynnRowe
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In reply to Franksdottir <<
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Date: 10/12/13 5:42 PM

There is a seam allowance. When you sew 3 sides of an HST to other HSTs (or whatever), the corner point "moves up" by the amount of seam allowance.

The 4th edge of an HST, when unsewn, will have the corner moved up on the sewn edges but not on the unsewn edge, leaving the seam allowance showing.

Take a square piece of paper and draw a diagonal line corner to corner. Mark 1/4" straight lines on three edges and black them out.

The 4th edge will show the corner 1/4" above the edge of the square. When a binding or another fabric piece is sewn to that 4th edge, all the corners will be points.

Corner to corner sewn HST:



3 sides sewn in 1/4" seam allowance, the unsewn edge's corner point is 1/4" in from the fabric edge, which is the seam allowance for the 4th edge.




-- Edited on 10/12/13 6:01 PM --

------
I heart Woo (HimmyCat). Until we meet again, my beautiful little boy. I love you.

jannw
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jannw
Washington USA
Member since 9/3/06
Posts: 8552
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In reply to LynnRowe <<


Date: 10/12/13 6:04 PM

Lynn...I probably explained poorly, but if you scroll down a bit, her triangles don't go from opposite corner to opposite corner. There is a quarter inch (?) of space abouve the top right corner. It looks as if the squares she is using are different sizes, but I didn't pick that up from the instructions.

------
2009-113.25 yds
2010-115.5
2011-80.25+30+donated
2012 86.3 yds..
2013 21.0
Everyone who sews seriously has a stockpile of fabrics, because it is natural to purchase more than can be sewn in any one season" Singer, Timesaving Sewing, 1987

Franksdottir

Franksdottir  Friend of PR
Member since 4/25/08
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In reply to jannw <<
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Date: 10/12/13 6:10 PM

That quarter inch is the seam allowance.

------
Barb

jannw
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jannw
Washington USA
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Posts: 8552
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In reply to Franksdottir <<


Date: 10/12/13 6:26 PM

I did understand that after some thinking. Here is an untrimmed one that I made earlier...



When I cut the little ears off, the corners are in the corner...there is no quarter inch above the top...when I sew around a quarter inch in, the size is reduced but not taken off.

------
2009-113.25 yds
2010-115.5
2011-80.25+30+donated
2012 86.3 yds..
2013 21.0
Everyone who sews seriously has a stockpile of fabrics, because it is natural to purchase more than can be sewn in any one season" Singer, Timesaving Sewing, 1987

Vireya
Vireya
Australia
Member since 12/10/05
Posts: 1032
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In reply to jannw <<


Date: 10/12/13 6:26 PM

Quote: jannw
if you scroll down a bit, her triangles don't go from opposite corner to opposite corner.

They do once she has sewn them together! It is only because some of them are still showing the seam allowance - ie the ones around the outside edge. Once that block is joined to another block the "extra" bit will be gone, and the triangles will be exactly from corner to corner - the way all the ones in the middle of the blocks look.
LynnRowe
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In reply to jannw <<


Date: 10/12/13 6:41 PM

Her triangles do go from corner to corner. Look at the piece of paper; seam line corner to corner. When the 4th edge is unsewn, as in her photos, the point appears to not be at the corner. It is; part of it is attached as seam allowance to the HST above it.

When that 4th edge is sewn, it will again be corner to corner...only the corners will now be 1/4" in from the original corners.

------
I heart Woo (HimmyCat). Until we meet again, my beautiful little boy. I love you.

LynnRowe
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LynnRowe  Friend of PR
Member since 3/9/09
Posts: 10326
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In reply to jannw <<
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Date: 10/12/13 6:43 PM

Exactly...when you sew around ALL 4 Edges. Then it's still corner to corner, just reduced.

She has not yet sewn the 4th edge. When she does, she too will again be corner to corner, reduced from the original corner to corner.

------
I heart Woo (HimmyCat). Until we meet again, my beautiful little boy. I love you.

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