For one, I wasn't asking for help in this thread and you can very well avoid broken spokes and/or nipples by knowing the right ERD. What happens if the spokes are too short? The threads aren't all the way in the nipple or if they are, you've overtightened the spokes and what might possible happen in either case? You can do the math... or not... So yeah... try to help yourself by reading about how to build wheels instead of illuminating the forum with your smattering.
Nico.