A Mosaic Block

Posted by Ruth on 6 May 2013 | 1 Comments

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I was looking for a different sort of block to make in the EQ library. I was considering mosaic blocks and as I was looking at a selection my eye kept on being drawn back to Mosaic Block Number 15. 

Remember those fortune teller folded papers we all used to make at school? Well this block reminded me of that. Actually, just on a side note. I had to search youtube to find out how to make one again as it had been a very long time. 

Fortune Teller

So I set to and my my mosaic block. I used two fabrics, yellow and blue this week. To make a 6" finished block I needed:

TWO 2 1/2" squares in both fabrics
ONE 4 1/4" square in both fabrics
TWO 2 3/8" squares in the colored fabric
ONE 2 5/8" square in the background fabric

All pieces cut

The large squares in both fabrics needed to be cut through the diagonal twice to make quarter square triangles. The smallest blue squares needed to be cut through the diagonal once to make half square triangles. Both are shown in the photo above.

The 2 1/2" squares in both fabrics needed to be made into half square triangle blocks by first drawing a diagonal line through the center of the lightest fabric and then stitching 1/4" both sides of the line. (I usually make it a little less the 1/4". This gives room to trim the units to make them accurate)

Stitching both sides of the diagonal line

After stitching both sides of the line, cut apart

After cutting along the line, press the units open and trim to 2" to finish them off.

Makes four half square triangles

With the half square triangle corners made, I went ahead and laid out all the pieces. I always think this makes it easier to see where to start joining first.

All sections ready to begin

I started in the middle by joining a triangle to opposite sides of the center square. Make sure you stitch with the square on top as this prevents stretching that bias edge on the triangle.

Add one triangle to opposite sides of the center square

Make sure the triangles are pointing in the right direction. Press the seams toward the triangles.

place that unit back in the layout

Next join the two triangles on each side of the center together. Be careful with these as you are stitching along the bias. You might need a little spray starch to prevent stretching.

Join the triangles together at either end

Press the seam toward the colored triangles.

Now join those triangle units to the center unit. You will notice how easily the seams butt together. Go ahead and trim off those ears, then press the seams in toward the center unit. This center strip should be measuring 3 1/2" x 6 1/2" at this time.

Center strip completed

Next is the Flying Geese unit. Add the smaller triangles, one at a time, to the larger one, pressing the seams toward the small triangles after each seam. You'll make two of those and they should measure 2" x 3 1/2" each.

Making the flying geese unit

Here I am putting the second triangle on. Notice the lower edges and points are aligned. The point at the top on the small triangle extends passed the end of the unit.

Second side on the flying geese unit

All that is needed now is to add the half square triangles onto either end of the Flying Geese units. 

Ready to join three units together

Make sure you have the right triangles matching. The seams should butt nicely together.

Seams butting together

The last step is to sew the rows together. The trick is getting those points perfectly aligned. I use three pins here. One I keep upright through the points to keep them aligned and then one on either side on an angle to prevent the fabric around the upright pin from moving.

Aligning points

I sew right up to the upright pin before removing it.

Sew right up to the pin

That worked well.

Great join

This is how my block finished up.

Finished Mosaic Block

What colors would you choose?

Make sure you have the right triangles matching. The seams should butt nicely together.Make sure you have the right triangles matching. The seams should butt nicely together.Make sure you have the right triangles matching. The seams should butt nicely together.Make sure you have the right triangles matching. The seams should butt nicely together.

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Comments

  • Great block Ruth and I think I would go with turquoise and orange

    Posted by Jen, 08/05/2013 6:38am (6 years ago)

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