I have found the best solution for 1/4 and 1/2 square triangles, yes this does work, print I bought a program where you can print out several different sizes of the quarter or half square triangles then place on 2 pieces of fabric & cut with rotary cutter and you have perfect 1/2 or 1/4 square triangles. I have never and I mean never been able to make them come out before and now they sew the correct size every time. Go to Quiltpro.com and check it out ,the program is Great! My mom and I discovered that newsprint paper also works the best for removing the paper after your stitching and it will go through either her printer as well as mine, also it's pretty cheap.