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Equilateral Triangle Square Block

Thanks for joining us for our star blocks. I will be using equilateral triangles to makes a star.

For this project you will need

1/4 yard of 3 different fabrics for the star ( fat quarters will work here just fine )

1/2 yard of fabrics for the background

For this project you will need

1/4 yard of 3 different fabrics for the star ( fat quarters will work here just fine )

1/2 yard of fabrics for the background

This should give you enough for a few blocks.

This should give you enough for a few blocks.

And then you will need

Rotary mat and rotary cutter

triangle acrylic ruler or standard acrylic ruler ( triangle ruler does make this process much easier )

and then the rest of your standart quilting tools

Iron and ironing board or mat, straight pins, thread and so on.

Let’s get started.

1st thing you will need to do is prepare your fabrics. I like to skip the prewashing step, I find the fabrics cooperate better when they haven’t gotten softened up in the wash before I work with them.

Open up your fat quarters and iron the wrinkles and creases out. You can stack your fabrics for quicker cutting, I find a stack of up to 4 fabrics works just fine. Any more than that and I always have to fight with the fabrics shifting.

Your 1st cut is just going to be getting a nice straight consistent edge and your 2nd cut is going to be cutting your strip to the proper height for your triangles. I like to cut to 5 1/4” for finished triangle of 4 1/2” but that might be bigger than you want for this project as that will give you a finished block size of 21 1/2”x 18 3/4”. If you start with a 4 3/4” triangle you will get a finished triangle of 4” for a finished block of 15 3/4” by roughly 18 1/4” without the border. That’s part of the charm of the equilateral triangles though, totally adjustable sizes and the technique is the same no matter what size you want to do.



Next I am trimming down the other edge so I ensure both my edges are even and the strip I will be cutting my triangles from is the size I want.  Here is where you have some decisions to make, what size do you want your triangles to be?  And what size do you want your finished block to be?  I think the best visually for this project is to cut a 5” triangle which ends up being 4 1/4” from tip to base.  But that doesn’t give you much room for a border. If you want more of a border, simply start out with a smaller triangle.



Now the exciting part, cutting your triangles.  If you don’t have a triangle ruler, I show in another video how to use your regular acrylic ruler and the lines on your mat to get your equilateral triangles cut.



Next we are cutting the background fabric.  In this video, I start my cut on a folded edge and show which lines on your ruler to use for that technique., Starting on the folded edge means you won’t have to do that awkward 2nd cut to get your 1st triangle.



No triangle ruler?  No problem, use the angle lines on your cutting mat and your regular acrylic rulers to get the same results.  The triangle ruler simply makes it a bit easier, less steps.



I was so close, the fabrics I used for the star are Kaffe Fassett Stash Cactus Flower, Anna Maria Horner Sinister Gathering and another Anna Maria Horner, Honorable Mention.  All 3 fabrics are listed on our website.



Ready to start laying out and designing our block!



ALMOST time to sew!  This step is a wee bit tedious but it saves so much time.  Preparing all the triangles for sewing now instead of as you are sewing makes it a snap to sew all the triangles together.  Pin the edge, even if you don’t think you need to.  It gets a bit tricky remembering which edge you need to sew if you don’t have it marked with a pin, they are all the same after all.



I now have all my triangles set right side together with its neighbor triangle and have pinned the edge.  As stated before, this is more to keep track of which side/edge of the triangle to sew.



And now to the sewing machine!  Mind my little error at the end of the video, I guess that’s what keeps seam ripper makers in business.  ha!



Sew all your triangle pairs together, pressing the seems open when finished. And make sure you are pressing with your iron, not using a back n forth ironing motion. This will pull and distort your triangles since 2 of the edges are cut 60 degrees against the grain. This was an interesting lesson I learned a couple summers ago that I will never forget.

Another detail to watch is row organizing. As you finish each row, be mindful of keeping the triangle pairs in order, Things can get a little confusing if you get them mixed up at this point. To keep from getting them completely out of order, I only sew the triangle pairs from 1 row at a time, put those back on my work table and then take the triangle pairs for the next row…and so on.



So now you have all these triangle pairs sewn together.  What next?  Next we press the seams open ( pressing down on the seam with the iron, not ironing back and forth….I’ll show you why in the video ) and then sew our pairs together in each row.









Now we have 4 rows of sewn together triangles, next step is to join the rows together to finish forming our star.  I start at the top, sewing strip 1 to strip 2 and then those 2 strips to row 3 and then finally I add row 4.  I match them up, I lay them right sides together matching the little dog ear notches at the points.  I then flip back, just a tiny bit, my fabric to make sure my seams all line up.  I demonstrate this in my next 2 clips.







Nice work, your star is done! Add borders if you like, I haven’t decided yet if I will add a border to each block or piece them all together and do a border at the end. I’m going to make a few more blocks and then decide. In the examples, I started out with a 5 1/4” triangle which finishes to a 4 1/2 “ triangle when measured point to base. This gives me a finished block that is 18 1/2” high by 21 1/2” wide. If this is bigger than you like, simply used a smaller triangle OR stick with the same size triangle and trim down the edges on the sides so your block is square.

If you have any questions or would like clarification on anything, please email, Facebook message or call. Thank you for joining us!

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