Law of diminishing triangles

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I've been having fun with my fungly blocks and wanted to show you how I make my half square triangles with little waste.  For my largest sized blocks (unfinished- 9") I cut squares approximately 3.5 inches (remember- these are liberated so perfect squares are unnecessary).  I cut 9 for the background and 3 for the triangles.  I cut the three squares in half for the half square triangle units.   I chain piece triangles to squares.  For the Jacks on Six block there are 6 of these units, plus three plain squares.  After piecing I trim the little extra triangle from the corner.

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Then I square up the unit and continue making the block.  To make the middle sized block (6" unfinished), I cut 8 2.5" squares for the background, 1 2.5" square for the middle and take four reserved triangles for the corners.  Chain piece as before, trim the extra off again, square up the units and continue on.

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This last little triangle will be used for the smallest block (4.5" unfinished).  For these I cut the squares to 2".  The triangle trimmings from these smallest blocks are too small to use (in my opinion!) so I toss them.  All these blocks are made such that there is a little extra to trim off when I square it up.  There's enough room to cut them at an angle too, if you wish. 

After the big Jacks on Six block I went back to my favorite Shoo fly blocks, but there are of course, enough triangles to make more of these half square units, so I end up sewing triangle to triangle and I save them to make wonky little pinwheels or sawtooth borders.  I managed to make a huge dent in my scrap pile over the past two weeks.  And the big fungly has grown. 

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Here's a sneak peek of what's going on with some of the smallest blocks.  This is sure fun!

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