Specifications

18
The required resources can be categorized into two major fields, mechanical and
electronic. The following explains these categories and the planned source.
Mechanical components/resources:
Resource Description Requirements Source Back-up Plan
Unit chassis
Aluminium 100x100
box section
Light weight Scrap bin at Patio shop N/A
Motors (x 2) 12V Low Amperage
Purchase (Bunnings
XU1 cordless drills)
N/A
Gear box (x 2)
Windscreen wiper
motor (XD Falcon)
Minimal weight, large
reduction
Car wreckers N/A
Trundle wheel
Low friction small
trundle wheel
Light weight Old cupboard wheel N/A
Fastenings (rivets,
screws etc.)
Assorted N/A Family Workshop Hardware Purchase
Wheels 115mm diameter Light weight Pram wheels Hardware Purchase
Bushes etc Assorted
Low friction, light
weight, affordable
Create in workshop Second hand toys
Table 3.8: Mechanical resources
Electronic components
Although there will be many components required that are unknown at this stage, the
following table provides a basic plan for the sourcing of components.
Resource Description Requirements Source Back-up Plan
Microcontroller Motorola HC12 - - - USQ on loan
Purchase chip and get
soldered to PCB
Infrared LED + sensors Various - - - Electronic shop Internet purchase
555 timers - - - - - - Electronic shop USQ loan
Wiring Various colours - - - Electronic shop USQ
Table 3.9 Electronic Resources
3.3 Sustainability
Unfortunately it will not be practical to keep the robot assembled at the completion of
this project. Due to the major component (HC12 microcontroller) being unaffordable to
the budget, the robot will be useless after the return of components. Without the
microcontroller the rest is rendered futile.