Chassis Assembly
Light Sensors
Find the two copies of the “light sensor plate” pictured on the right. Hardware:
1
1
2
4
Stack items onto the screw as follows: lock washer, plate, 2 flat washers, both light sensors (orient them the same way), 2 flat washers, the other plate (oriented the same direction as the first plate), lock washer, nut. Tighten.
Bottom Plate
The picture below shows the bottom plate. Hardware:
3
3
Attach the standoffs to the plate through the highlighted holes, with the screws on the side with the etching.
Open the Tamiya ball caster package and retrieve the following parts:
1H3 (ball holder, triangular)
1ball
3shafts
1H2 (triangular)
3H1 (spacers)
33x15mm machine screws (longer ones)
3nuts
Note that the package contains additional parts (for a second caster and alternate configurations), but they are not needed here.
Insert the ball into H3, and place the shafts on top of the ball, parallel with the edges of the holder, as shown in the upper left image in the picture below.
Place H2 on top of the H3 assembly, as shown by the pink arrows.
Place the three H1 spacers into the indentations on H2, as shown by the blue arrows.
© 2004 C. Saxton
Insert each machine screw from the “ball” side, up through H3, H2, and a spacer. Hold the bottom plate of the chassis with the standoffs on the top and place it over the caster, inserting the screws through the holes highlighted in the picture on the left. Fasten with the nuts.
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