A lot of questions about Thangles

After trimming and pressing I see that I still some medium colors before I start designing up on the wall, so I sewed some more last night.
There were a lot of questions about Thangles yesterday. If you go back to this post I explained them fully. Now I will go on to explain more. In the beginning we just cut triangles and sewed 2 together and sometimes our blocks were kite shaped and the wrong size afterwards. Then came Triangles on a Roll which you could layer 2 fabrics and sew on the dotted lines and cut on the solid lines and have instant squares made of 2 triangles. This was especially great for projects that were all triangles.


That posed a problem when you needed squares cut from the same fabric as your triangles because you had to cut 2 different pieces of fabric to cut them out of. Thangles (picture on yesterday's post) have made it easy. If you need squares made of 2 triangles that measure 2.5" after sewing and plain squares that measure 2.5", you can now get it all out of one 2.5" strip instead of one 2-7/8" strip and one 2.5" strip.

Next comes the accuracy issue. Not all quilters are created equal. Some cut on tables that are too high/too low, some need glasses but are too proud to wear them, some have incurable vision problems, some have shaky hands, and some just don't take the time to try to be accurate. If accuracy is a problem with squares made of 2 triangles, you are better off to cut the original square over-sized, draw a line diagonally from corner to corner, do your best 1/4" seam on each side, cut on the line you drew, press the seam and then cut the squares to the size you need. This is the cutting twice method and will slow you down in the project but it will be accurate.
I have been quilting long enough that I know how to deal with small inaccuracies and when to throw a piece out because it is way off. The more you sew triangles the better you will be at it. You just need to pick the method that works for you. I have always been a speedy and accurate sew-er and yes, I am a math person. I LOVE math. I love figuring out how many pieces I can get out of a selected fabric, and figuring out yardage for a quilt, and all of the other things I need math for, so 7/8" seam allowances added to a strip was never a problem for me. Lots of people don't understand all of those little marks between the numbers on a ruler. There are a lot of things in life I don't understand too.