Cutting wood for lovely wood segmented projects is not just about measuring, but safety for the woodworker as well. The smaller the segments, the more dangerous to cut. When you work with precious wood and / or colorful expensive wood, then you do not want to waste any of the wood. That brings the question of what to use for cutting he wood.
The table saw can be your biggest friend if you know how to get zero clearance when cutting segments. Accidents do happen, but you can minimize the possibilities if you follow the advice of Bob Rundquist in this video.
Bob is a woodworking artist from Saltillo in Mississippi who presents an online workshop (Introduction to segmenting) where he demonstrates how to do closed segmenting.