Wondercut Ruler works really well.

I use Fons&Porters half square/quarter square ruler. You cut a strip and lay the ruler down and cut once, flip the ruler and cut once. Then pick them all up and sew on the edge. They come out really nice and they have not been stretched out of whack and you can cut a bunch pretty quickly.

Using triangles on a roll or printing out this type of paper http://www.quiltingandwhatnot.ca/Hal...-Triangle.html and photocopy makes the best 1/2 square triangles. I have completed quilts this way and it is the only way to go. Here are two examples, and good luck on your project

I use triangulations CD the most in making HST'S.

Rhonda's Method is the way to go. Perfect every time.

Jan the method may be great, but that is a terrible waste of $10.95 fabric. LOL! I find the accurate cutting and piecing makes them quite easy.

Since I started using the method found in this blog - http://whipup.net/2011/03/17/guest-b...are-triangles/ , my HSTs have been perfect. This and the use of spray starch. Hated making them before this but since, I don't mind

Thangles! Love em

Marsha McCloskey has a very accurate way to make half-square triangles. She calls it Bias-Strip Piecing.

"Each HST is made of two triangles but is actually cut as a square. In this method, large beginning squares of fabric are cut into bias strips, which are then sewn together. Squares are then each cut with the seam line centered corner to corner. Because seams are intially sewn on the bias edges, the cut squares have the straight grain on the outer edges."

A detailed description of her method is described in detail with pictures and cutting charts in many of her feathered star books. Perhaps you could find one in your library.

Jan, you are always so good with illustrations.