Many quilts are made up of a variety of half square triangles (two triangles cut from one square). The half square triangle is a typical unit in pieced quilt square patterns. It is two right angle triangles joined together to make a square. At whatever point possible, with pieced units and blocks, it is best to position the straight grain of the fabric along the outside edge. There are several methods of cutting and constructing these units. We will discuss two of them.

When working with these units, you must first know the desired finished size when sewn into the blanket square. To do this, you must add the seam allowance to determine the cut size of the shapes.

A drafted pattern of this shape is useful in understanding this idea, especially when working with triangles. First draw the finished size of the blanket square on the graph paper. Draw a line diagonally from corner to corner to show the finished triangle size. Presently mark lines around a single triangle with the amount of your seam allowance. For our example we will add a half inch. This is the final cut size of your triangle. The width equals the final cut size of any squares you cut before you cut triangles.

Right square triangles can be rapidly and accurately cut with a rotary shaper. Learn these two normal methods.

One Method For Cutting Quilt Triangles

First cut squares in the size specified in your directions. At that point line up a ruler’s edge with opposite corners of a square. Slice along the ruler’s edge to slice the square down the middle diagonally; separate the triangles. Repeat with the remaining squares. Because the triangles’ long edges are on the bias, avoid stretching them while piecing so you do not get distorted seams.

Another Method For Cutting Quilting Triangles

First cut squares in the size specified **rotary cutter singapore**. At that point line up a ruler’s edge with opposite corners of a square. Slice along the ruler’s edge to slice the square down the middle diagonally, however do not separate the two triangles created. Instead, line up the ruler’s edge with the remaining corners and slice along the ruler’s edge to make four triangles total; separate the triangles. Because the triangles’ short edges are on the bias, avoid stretching them while piecing so you do not get distorted seams.