Copyright © Parallax Inc.

Eddie Robot Platform (#28990 & #28992)

v1.2 11/10/2011 Page 4 of 16

Each Ping))) assembly consists of:

Each IR sensor assembly consists of:

(1) Ping))) sensor (#28015)

(1) IR sensor (#28995)

(1) Cable, servo extension (#805-00002)

(1) IR Sensor to servo cable (#805-28995)

(2) 4-40 x 5/8” black machine screws (#700-00028)

(2) 4-40 x 5/8” blk mach. screws (#710-00035)

(2) 1/16” thick nylon spacers (#713-00015)

(2) 1/8” thick nylon spacers (#713-00013)

(2) ¼” thick nylon spacers (#713-00005)

(2) ¼” thick nylon spacers (#713-00005)

(1) Acrylic Ping))) stand (#725-32008)

(1) Acrylic IR Stand (#725-28995)

Refer to Figure 3b, and note the different locations of the spacers on each assembly. In each case, make

sure the label-etched sides of the Stands are on the opposite side from the sensor assemblies.

For the IR module, insert two 5/8” long, black machine screws through the mounting holes from the

backside of the module. Place (1) of the 1/8” long spacers and (1) of the ¼” long spacers on each of the

machine screws (as shown in Figure 3b). Carefully align this assembly onto the backside of the acrylic IR

stand, and gently tighten each of the machine screws until they’re snug. Nuts are not required. The

machine screws will cut their own threads as you screw them into the acrylic. Do not over tighten.

Assemble the Ping))) module by sliding a 1/16” thick nylon spacer onto each of the two 5/8” long, black

machine screws.

Insert these screws (with the 1/16” washers) through the Ping))) sensor’s PCB

mounting holes. Place two ¼” long spacers onto the screws, and align the screws to the self-tapping

mounting holes on the acrylic stand. The screws will cut their own threads. Screw them all the way in,

but do not over-tighten.

Figure 3b

You should now have assemblies that look like those shown in Figure 3c. Repeat these steps for the

remaining Ping))) sensor and IR sensor assemblies.