Monday, August 31, 2009

Setting Triangles in QuiltRef

Here is some helpful information on setting triangles and how they are computed. I find that some quilters use different terminology and methods, so here is how QuiltRef [App Store link] does it, taken from the's web site.

Quilts with blocks set on point have triangular openings around their outer edges where each diagonal row of blocks ends. Two sizes of triangles are used to fill in the blanks. One size fills in the gaps along the top, bottom and sides of the quilt. Four smaller triangles are used to create the quilt corners.

Corner triangles are half-square triangles, created by cutting a square in half once diagonally to produce two triangles with the straight grain on their short edges. Setting triangles are quarter-square triangles, created by cutting a square in half twice diagonally to produce four triangles with the straight grain on their long edges.

To calculate the size of the two squares, (1) Start with the finished parent block size times 1.4142. (2) For the corner squares, divide this by 2 and add 0.875". For the setting triangle's squares, add 1-1/4" to step 1. Unless you have experience with these setting triangles, it is recommended that you add 1/4" to 1/2"; you can trim off any excess after assembling the blocks and triangles.

For a more detailed discussion on Corner and Setting Triangles, including photos and diagrams, see's web site on the subject.

Wednesday, August 12, 2009

QuiltRef Now Available!

QuiltRef [App Store link] is now available! It's a free mobile quilt reference app that is not just for quilters, but for quilt fans too. This utility for the Apple iPhone and iPod touch provides useful information whether you are in a quilt shop buying fabric, at a quilt show admiring others' handiwork, or hunting antique quilts at auctions and yard sales.

So give it a try, and let me know what you think and what else you'd like to see.

And if you haven't already tried the companion App, QuiltFab 2.0, take a look at it too.