Originally Posted by
Cre8tvlwyr
.... to figure triangle size when you change size of blocks - a little math required...
determine % increase = 4.5=100% --> [6.0 x 100]/4.5 = 600/4.5 =133%
easiest thing to do is to take a picture of the actual size triangle to copier and setting the 'enlargement' size to 133%
the size will change from 5x8 to 6 2/3 x 10 2/3...
This is definitely a great way to do it for those that have access to a copy machine. However, in using the software, only .25" increments are allowed. I wish I could remember some of the math I learned so many years ago. So after a lot of trial and error, with 4.5" blocks, 1" sashing and .5" inner border, a 5.5" base x8.75" high triangle has the same angles as the original DJ. It might be off by one thread when sewing the seam allowance, but I'm going to make it work. This way, I can use the DJ tri ruler with a bit of length extension to 'square up' my tri blocks. I could go with 5" blocks and .5" sashing and .25" inner border, but, then, I wouldn't be able to use my square DJ ruler
