Too many white triangles.
 

Well I did this carpenter star so so carefully counted cut pieces. Placed in order on wall. Put together in pairs then in rows.
As I was pressing found I had one too many white triangles. Don't you hate it when you have been soooooooo careful.
Did fix it.

Glad you found it early on and yes, I have not seen mistakes till way late in game. Sometimes taking a picture helps but not always. Can't wait to see the whole thing :-)

Great colors and you found your error early on. I didn't see the error on my last quilt until it was quilted, bound and posted on this board!

Ladies it stood out like a sore thumb as I was ironing. And I had just one dark triangle left.

Instead of working with triangles, it really is much easier to make HSTs, then it's all squares when it comes to the assembly.

I'm looking forward to seeing this Carpenter's Star flat out ... and all finished!

Tartan, you hit the nail on the head. I hate when that happens. Another thing that I hate is counting pieces when there are thousands and loosing count. That happens to me all the time. I usually buy extra to avoid the first problem.
Sue

I do hate it when that happens. At least you discovered it when ironing. I got one star quilt totally quilted before I noticed a turned point. Good ol fusible and raw edge applique, fixed that puppy.

Glad you discovered it before it was quilted. Please do share pics of this, it's great!