Here are the two I made
So how do I do this?
First I iron and starch my fabric. The starch helps stabilize the fabric. This is important because you will be sewing bias edges. (Bias: not cut along the grain lines and thus it is stretchy)
Then I layer the fabrics on the cutting mat. I sometimes layer up to six layers. I don't feel comfortable cutting more than that.
Here I have five layers - two folded pieces and a single layer.
Then I stack a pair (and I should have done them both to speed the process.) I align that pair or pairs with the leftmost line on my cutting mat. I make sure that I can see the inch markings on both top and bottom of the mat. Then I take my longer straight ruler and line up the first angle cut.
The top edge is lined up with the 4 inch mark (or in this case close to it. oops)
I don't have more pictures at this point but I think you can take it from there. When you cut the second angle it will form a loose V or A shape with the previous seam. In other words, the edge you lined up at 4 inches will be lined up at 4 inches again. And the side you lined up at 7 inches will be at 7 again. then press and stack again.
The other angles are done the same way from the sides that are left with no seams. When they are completed, I trim them to 15 inches square.
If you are doing these in a different size you will have to pick markings for your angles that make a pretty block. I suggest that you experiment with it and have fun.
If you cut a line parallel to the first angle line you will NOT get mirror image blocks. Why? I finally figured it out. When I fold a block where I have sewn the first two angles as I showed above, the seams pretty well are mirror images of each other....and it translates the same between the two blocks. Clear as mud, right?
Have fun, I would love to see what you make with these.
Here is a mock-up of a quilt made with these that I did in EQ7
Comments are welcomed. I will reply when possible unless otherwise stated.