Page 44 - Build a Remote Controlled Robot

FIGURE 1-11. Castor wheel attachment. THE MOTORIZED PLATFORM 11

holes depends on the wheel you have obtained.) As I noted
before, you will probably have to stack some plywood spacers
(use the wood left over from when you made the platform)
between the wheel and the platform. These spacers are made by
tracing around the castor’s mounting plate and then marking
and drilling the mounting holes as you did for the platform.
When you stack the spacers, all the holes should line up.
Bolt the castor wheel and spacers to the platform as shown
in Fig. 1-11. Then using a small level, check to see that the
platform sits correctly. If the level of the platform is slightly off,
this can be corrected by placing washers between the stacked
plywood and the mounting plate of the castor until level.

FINISHING TOUCHES

After you have mounted all three wheels, remove them and
paint the platform. This not only makes the platform look bet-