If you mean a template like F&P have, for example, yes I have used these with success, and I have also used the diamond templates. But, I have also found for my EPP fabric shapes the acrylic templates that PaperPieces.com offer are much better because these allow for a 3/8" seam allowance...may seem like that 1/8" doesn't matter, but it does for me as I glue instead of baste plus the paper takes that minuscule amount of the allowance when folding over and that extra 1/8" compensates well. And the templates are really inexpensive, so I have ordered whichever I have needed for whatever project i am doing. Next will be Lucy Boston patchwork of the crosses....