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The Eccentric Star Quilt Block Pattern

A design from the Friendship Star family


The Eccentric Star quilt block tutorial starts here...
The Eccentric Star quilt block tutorial starts here...

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Skill Level: Beginner

Grid: 3x3

The Eccentric Star quilt block is a quickie to make, just like its kissin' cousin, the Ribbon Quilt block. (At the bottom of this page you'll find several other blocks in the Friendship Star family.)

Just make your half square triangles with our 8-at-a-time method. Two squares of fabric, four lines of stitching and a bit of trimming is all it takes. You'll create perfect units every time.

Let's get started!



Construction Instructions

All seam allowances (SA) are 1/4" and are pressed toward the darker fabric unless otherwise indicated.

I use two different quarter inch presser feet for our Eccentric Star—one with a tick mark on the side and the other with a guide on the right hand side. Watch for them in the photos below.


Step 1: Cutting

Eccentric Star quilt block design

Like any star block, choose two fabrics with good contrast so that the points don't get lost.

I've starched my quilt fabric before cutting. The benefits are three-fold:

  • My cuts are more accurate
  • Ironing the starch dry helps shrink unwashed fabrics
  • The starch cut edges ride up nicely next to the guide on my favorite quarter inch presser foot

To keep the Cutting Chart less cluttered, the measurements below are all for squares, i.e. 5 1/4" means to cut a 5 1/4" square.

CUTTING CHART
for an Eccentric Star
Quilt Block
Finished Block Size
Patch
#
Fabric Qty 4 1/2" 6" 7 1/2" 9" 12”
1 D 1 5 1/4” 6 1/4” 7 1/4" 8 1/4” 10 1/4”
2 L 1 5 1/4” 6 1/4” 7 1/4" 8 1/4” 10 1/4”
3 L 1 2” 2 1/2” 3" 3 1/2” 4 1/2”
Unfinished Block Size 5" 6 1/2" 8" 9 1/2" 12 1/2”
Grid Size 1 1/2" 2" 2 1/2" 3" 4”

Step 2: Create half square triangles 8 at a time

First mark two diagonal lines from corner to corner on the back of the light #2 square. A mechanical pencil is perfect for this because the line stays nice and fine. Always.

Next layer the #1 and #2 squares, right sides together (RST). For this 9" finished sample block the squares are pinned together so that they don't shift while sewing. Pins are positioned away from the stitching lines.


Stitch a quarter inch away from both sides of each line.Here I use my quarter inch foot with the markings on the side.

Press the sewn unit flat to set the seam.

From the chart below, find the Midpoint Measurement that corresponds to your Finished Block Size.

Finished
Block Size
Midpoint Trim HST to...
4 1/2" 2 5/8” 2”
6 " 3 1/8” 2 1/2”
7 1/2" 3 5/8” 3”
9 " 4 1/8” 3 1/2”
12 " 4 5/8” 4 1/2”

Helpful Tip:

If you have a smaller cutting mat use it. It's much easier and more accurate to turn the mat than to move the patches.

At your cutting mat, align this midpoint measurement line on your ruler with the edge of the sewn squares. The opposite side of your ruler should cross through the center of the drawn 'X'. (Pretty close is good enough since we started with generously sized patches.)

Cut the squares in half along the ruler.


Cut the #1/#2 patch in half


Now turn the mat and repeat.


Cut the #1/#2 in half again to create four squares.Cut the #1/#2 in half again to create four squares.

You now should have four equal size pairs of stitched patches.


The four equal sized #1/#2 subcuts.


Cut each in half along the diagonal pencil line.

Press the HSTs with the SA toward the darker, #1 fabric. Refer to the chart above and trim the HSTs to the size that corresponds to the Finished Block Size for a total of 8.



Step 3: Assembling the Eccentric Star quilt block

Arrange the patches as shown below.


Arrange the patches into the design


Sew the patches in each row together.

Where a light edge meets a light edge and forms a 'V', I've used a pin to help hold the seam together. The pin isthisclose to the line of stitching.


Pin seams when the two light patches of the HSTs meetTo stitch the patches together I've switched to my quarter inch foot that has a guide on the right hand side.

This seam is bulky because both SA are pressed toward the dark.

And this is how the match turned out.


Whew! It worked the first time!

The hardest part of this block is keeping the HST oriented correctly and not flipping them accidentally at the machine.

This is how the stitched rows look in their proper position.


The units are stitched into rows.


To make it less confusing, flip the bottom row of patches. Now it's easy to see that the top and bottom rows are pieced exactly the same.


Turn the top and bottom rows in the same direction. Then you can see they are pieced exactly the same.SAs are pressed toward the center in the middle row and away from the center in the top and bottom rows.

Return the rows to their proper positions. With RST, stitch them together.

Your finished Eccentric Star quilt block looks like this.


The finished Eccentric Star block

More designs from the Friendship Star family

This family of designs is built on a 3x3 grid with HSTs on the sides that 'pinwheel' around a solid center square.

You'll find cutting and piecing instructions for several variations of this simple patchwork design on this website. Click the image to go to the pattern page.

Friendship Star quilt block tutorial Mississippi quilt block tutorial The Ribbon Quilt block

For even more designs, check out our Free Quilt Block Patterns Library.



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