Kat Sews' sample is a good way to make more HST and one does not need to be concerned about bias. A walking foot is a good tool to use with this example.

I use Eleanor Burns Quilt-in-a-Day method and I have her triangle square up ruler and it is wonderful. I was making a hugs and kisses quilt which called for lots and lots of half square triangle blocks and this method and ruler worked wonderful. I was finished with the the quilt top in just one day (50 x 60).

Following is a link to some of her videos. They show several ways, but the American Barn series uses lots of half square triangle blocks.

http://quiltinaday.com/theater/qbab/qbab1.html

Cherry

I have tried every method to make half square triangles and finally found one I love. With the GO cutter all your half square triangles come out perfect, and when you sew them together there is no need to square up and cut off the dog ears.
It works so great!

Paperpiecing is probably the easiest and quickest way to make a lot of HSTs. If you only have a few to make you can print out your own templates; however, if you're going to make a lot Thangles are much less expensive than toner and paper for your printer. This is what I use for 2 inch finished HSTs.

I hope this works. I have a handout that I made up for the quilting classes I teach. I will attach it to this reply. It makes a lot of hst pretty fast and accurately.

I use Tri-angle paper or Tri-angles on a roll for making HST's. The paper is a lighter weight than copy paper for the roll and a newsprint paper for Tri-angle paper and both tear off easily. Just make sure to use a smaller seam allowance than normal. To tear off the paper, I put my thumb in the middle of the seam allowance and tear off the large piece of paper. The seam allowance paper then comes off easily.

Great tips -- thanks everyone. I may now try pinwheel blocks again.

The way I do them is for instance, take two 5inch blocks & place them face together. Sew 1/4 inch all the way around all four sides. Then cut them from corner to corner both ways & you end up with four perfect 3 inch half sq triangles. I have found what ever size half sq triangle you want, just add two inches to the size of block you sew together. For me they come out perfect every time & all the same size.

There are so many ways to make HST but my favorite is the Omigrid 98 ruler-uses 2 strips of fabric right sides together and after the cutting and sewing one of the dogears is already cut off for you

Yes, Rhonda's way is another good way.. She has some great ways to sew blocks. :)

http://www.quiltingboard.com/t-115548-1.htm