When building with LEGO bricks, you don’t have to use a
single stud as your smallest unit: Two techniques allow
LEGO bricks to be half a stud off. One technique, shown in
Figure 2-22, uses a jumper plate, a 1×2 plate with a single
centered stud on top, to place a brick half a stud off. Figure 2-23 shows a technique using Technic pins: By inserting
one end of a pin into a 1×2 Technic brick with a
hole and the other into a 1×1 Technic brick with a hole, you
can achieve a half-stud-off alignment.