Budget

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The maximum allocated budget from the Cambridge University Engineering Department (CUED) is 100 per student, giving 200 for the Robotic Unicycle. As expected, the project has now consumed this allowance and there is limited extra funding available from the Engineering Department.

 

Expenditure

The table below lists the total expenditure to date, which includes most of the mechanical and structural components for the project. 

Component

Supplier

Cost

Wheel

Thakes cycles

18.98

Motor

Technobots

26.95

Gears

Technobots

36.33

Bearings

RS Components

27.75

Pulley & Belt

RS Components

10.18

Materials

CUED Stores

?

USB Control Board

Alpha Microsystems

53.57

USB Adapter

Martley Electronics

4.99

Books

Maplins

7.99

ADC x1

Farnell-in-one

2.70

IR range finder x1

Farnell-in-one

12.96

Tilt Switches

Maplins

1.49

Workshop charges

CUED

?

Total at 8/11/4:

203.89 + ?

 

Planned Expenditure

There remains a substantial number of components that are required for the Robotic Unicycle, mainly for the system electronics and control. The table below attempts to list these components but there may be changes to the plan as the project develops. An approximate date on which the components will be needed has also been shown to allow for some financial planning.

Component

Supplier

Cost

Expected date

Mechanics Subsystem

Motor

Technobots

26.95

January 2005

Gears

Technobots

36.33

January 2005

Bearings

RS Components

27.75

January 2005

Materials

CUED Stores

?

Ongoing

Workshop Charges

CUED

?

Ongoing

Outer panels

Carbon Concepts

100

December 2004

 

 

 

 

Electronics Subsystem

IR range finders x3

Farnell-in-one

38.88

December 2004

Gyro low pass filters x3

Farnell-in-one

10

November 2004

IR detectors x4

Farnell-in-one

11

November 2004

Radio Controller

Technobots

40

November 2004

Magnetic Compass

Active Robots

26.97

February 2004

Sensor Interface

Farnell-in-one

5

November 2004

Speed controllers x2

Technobots

80

November 2004

Power management

Farnell-in-one

30

December 2004

Battery charger

Farnell-in-one

25

December 2004

Battery

Technobots

30

November 2004

 

 

 

 

Control Subsystem

Computer controller

 

250

November 2004

 

 

 

 

Project Costs

Competition entries

 

50

June 2005

Travel to competitions

 

100

June 2005

 Approximate total future expenditure: 887.88

Compared to robots of a similar weight, the Robotic Unicycle represents very good value for money.