Drafting an eight pointed star pattern with a compass

It is nice to know how to draft a traditional eight pointed star. You may have a pattern for an average quilt block size like 8, 10, or 12 inches in a book. However, you may want a *special* size block like 13 3/10" to fit a border stripe or a corner square size that will fit a special motif in the fabric. Knowing how to draft your own stars is a perfect way to break loose from commercial patterns.

What you will need...

You will need a large sheet of graph paper, I prefer 8 squares to the inch with darker 1 inch markings, but you can use 4 squares to the inch. I get a nice pad at Office Max that I have to order. Sometimes it is in stock but sometimes it isn't.

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STEP 1: Draft a square on your graph paper the size you want your finished 8 pointed star to be. 

A: Draw a line from top to bottom in the center.

B: Draw a line from side to side in the center.

C: Draw a line from corner to corner on the diagonal.

D: Draw another line from corner to corner on the diagonal.

STEP 2: Take your compass andopen it so that the pencil end is in the very center of the star where all the lines cross and the pointy end is in one of the corners.

Without moving the set opening, go to step 3.

STEP 3: Put the pointy end of the compass in one of the corners of the square and then swing around the pencil end until the lead crosses the outside line at 1 and still keeping the point in the corner, swing the lead around until it crosses at 2

Now put the pointy end in another corner, and swing around to make a dash at 3 and then one at 4, etc. Do this for all four corners.

Please note in the next drawing that the measurement from the center to the outside corner is the same measurement from the corner to where the crossover marks from your compass are. 

Also note what the measurement is (this is for an 8" square)...5 21/32. This is why it is so much easier to do this with a compass than a ruler...the ruler fractions would scare you!

STEP 4: Okay, now hang onto your thinking caps. This is easy but follow the directions! Remember to cross your lines exactly where the pencil marks from your compass touch the outside line..

Draw a line from A to F

Draw a line from B to E

Draw a line from C to H

Draw a line from D to G

Draw a line from A to D

Draw a line from H to E

Draw a line from B to G

Draw a line from C to F

And if you want a star with the corner triangle also divided in half like the star on the left, draw a line from G to F. Use the original division lines on your drafting for the star on the right.

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STEP 5: The last thing you have to do is to isolate the shapes you need for your pattern. Each different shape will need a different template. 

The blue 45 degree diamond shape

The pink corner square

The red triangle shape for the traditional plain eight pointed star

The green triangle shape if you choose to divide the corner Note that the green and yellow division triangle are the same size, just turned differently..

For the Stripped Pieced Lone Star quilt in this project, you will use the blue 45 degree diamond shape. I will put up a page in the future on how to make these shapes into templates or convert to quick piecing sizes?
Main Introduction Page 2) How big a star 3) Fabric choices 4)You need a 45 degree diamond 
4a) If you have a 45 degree diamond
4b) draft using a protractor.
4c) draft  using a compass.
4d)  .pdf format printout
5) Making a star point in any length
6)  Sew 
    Page 1
  Page 2

7) figure size of background squares and triangles

8) Sewing together star points/ setting in the background
9) Adding Borders

9a) floating blocks

10) *really easy* Lone Star quilt.