Large Full Triangle
Diagonal Set Ruler
5" to 16" finished blocks
NO RULER FLIPPING Required
To cut both sides of Triangle
See Instruction Below
No-math solution to the On-Point Quilt setting corners and side setting triangles.
MFG: From Marti Michell
My Favorite Ruler Series
Diagonal set quilts have two different sized half-square triangles: one for the corners and one for the setting triangles. Use Full Triangle Diagonal Set Ruler a "no math" ruler from the My Favorite Rulers by Marti Michell, to cut both triangles from the same-width strip of fabric.
From Marti Michell My Favorite Rulers series bring you the Diagonal Triangle Set Rulers, with its no-math solution for cutting both size setting triangles to a complicated math issue built into the on-point quilt setting. The rulers are marked in 1/2" increments and labeled with the on-point finished block size. To cut the correct size, simply select your block size and cut away!
Marti Michell's Perfect Patchwork Systems Templates won the Best New Product Award with the first 4 sets of templates A-D. In 2004 Marti was named the 2004 recipient of the Silver Star Award, The award is presented annually to "a living person whose body of work has positively influenced, promoted and developed the art of quilting."
One multi-size ruler offers a no-math solution for cutting both size setting triangles that are needed when patchwork blocks are set on point. Uses the same corner concept as our templates. Available in two sizes, each ruler is small enough to handle easily and large enough to get the job done right. The small ruler is perfect for small quilts, many border designs and even many square-in-a-square designs.
The Diagonal Set Triangle-Rulers are marked in 1/2-inch increments by the finished block size. Because corner and setting triangles are often odd measurements, it is easier to use the ruler to measure and cut the strip than to try to find the exact place on a rotary cutting ruler.
1. To cut the corner triangles, (see example) align the finished block size with one edge of the strip and the top of the ruler with the other edge. Cut both sides of the triangle without moving the ruler.
2. To cut the larger setting triangles (see example) cut one side of the triangle, then flip the ruler and align the contact spots. The top of the ruler will fit into the already-cut angle and the finished block size line on the ruler will align with the edge of the strip. Cut the second side of the triangle.
Difference between other Rulers is the New FULL diagonal Set Triangle
Requires NO FLIPPING of the Ruler required
Cutting Perfect Corner and Setting Triangles with Proper Grainline is Easy with These Rulers
Diagonal set quilts have two different half-square triangles: one for the corners and one for the setting triangles. Use this "no math" ruler to cut both triangles from the same-width strip of fabric.
b = The corner triangles are cut with the legs on straight grain.
c = The setting triangles that fill in the ends of the diagonal rows are cut with the hypotenuse on the straight grain.
Cutting the Strips for Both Triangles
Locate your finished block size (a) on either diagonal edge or down the center of the ruler. The arrows point to a line. Place that line on the trued-up edge of the fabric. Place a long acrylic ruler against the small tip of the Diagonal Set Triangle Ruler. Slide the triangle along the fabric edge to confirm consistent strip width, then cut the strip. Option: In the center of the ruler, the numbers 2" to 7" can be used to determine actual strip width. Then measure and cut strips any way you like.
Cutting triangles for an 8" block is illustrated. Corner and setting triangles are cut from the same width strips.
Corner triangles must be cut from a trued-up end of the strip.
Cutting the Corner Triangles & Trimming Dog Ears (built into the ruler) (b)
True up one end of the strip. Position the solid line just left of the center of the tool on the cut end of the strip and the line of the finished block size at the bottom of the strip.
The tip of the ruler should align with the top of the strip. Cut the diagonal edge; before moving the ruler, nip the point.
Reposition the ruler as needed on the cut triangle so the corners align and nip off the other two points. Nipping the points on all the setting and corner triangles allows them to line up perfectly with blocks when rows are assembled.
Cutting the Setting Triangles
Assuming you have just cut a corner triangle, rotate the ruler on the same strip. Position the line identified for your finished block size on the top edge of the strip. The flat top of the ruler should just touch the bottom edge of the strip, and the angled edge of the ruler should line up with the angled edge of the strip.
Cut the diagonal to create the first setting triangle (1, below left). Reposition the ruler on the corners of the fabric triangle as before and nip off the points.
Rotate the ruler and align the block size line on the other edge of the strip and cut again (2, above right). Nip off the points.