Building Robots With Lego Mindstorms

Understanding LEGO Geometry • Chapter 1 13

We said that the unit of measurement for length is the stud, meaning that we

measure the length of a beam counting the number of studs it has.The holes in

the beams are spaced at the same distance, so we can equally say “a length of

three studs” or “a length of three holes.” But looking at your beams, you have

probably already noticed that the holes are interleaved with the studs, and that

there is one hole less then the number of studs in each beam.

There are two important exceptions to this rule: the 1 x 1 beam with one

hole, and the 1 x 2 beam with two holes (Figure 1.10).You won’t find any of

them in your ...