CHAPTER 24 ■ BODY BUILDING
■ Note At this point in the instructions, you may be a little irritated with me if you finished soldering your
only board in the last chapter. It’s difficult to tape a board full of parts against the plastic. But, you can still
measure the locations of the holes with a ruler and then mark them on the container that way.
- Mark the location of the screw holes on the outside of the container.
Notice the amount of space taken up by the breadboard. The motors are going to be placed to the rear
of the breadboard. The reason for inserting and marking the location of the breadboard before the motors is
that the breadboard determines the proper location for the motor holes.
Creating a Template Sticker for the Motor Holes
You can measure the dimensions and placement of the screw holes and motor shaft of the gearhead motors
by hand with a ruler and calipers. Or you could read them from the manufacturer’s datasheets.
Figure 24-6 illustrates the dimensions of the motor shaft cap and screw holes for the Hsiang Neng motor
described several chapters ago. The two screw holes are 2.6 mm in diameter. The cap around the motor shaft
is 7.6 mm in diameter. The centers of the screw holes are 22 mm apart, 4 mm above the center of the motor
shaft.
Figure 24-5. Breadboard taped inside the container to mark drill points and determine the amount of space
it needs