Really thrilled you like it kathy :) . The triangles measure 3 1/2" (finished size) from base to apex (approx) The triangles were drawn on isometric graph paper and I couldn't get any in imperial measure so are actually in metric measurements. This makes your finished hexagon block approx 7" edge to edge and approx 8" point to point.(not including seam allowances)
Doesn't matter though as long as you add 1/4" seam allowance then make some templates with the pattern you've drawn up, will work the same. Using the graph paper you can make them whatever size you want.
Hope that helps some, is very hard to describe something without pictures, is best to use graph paper for accuracy, Instead of having a square grid isometic paper has a grid of 60 degree triangles, is wonderful for any hexagon and circular based work.
All the best with it Kathy and if you decide to make it, let me know how you get on and I'd love to see some pics :)