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Low Cost Design

How the robot sticks to a tight budget

This project could be replicated with a $250 budget, as our team was resourceful in its use of materials to create an effective robot at a low cost.

Budget

Material Used Estimated Cost Amount Taken out of Budget
Borrowed Adafruit Motorshield $19.95 $0.00
Arduino Uno $23.00 $0.00
Roll of Duct Tape $8.58 $0.00
4V Rechargeable Batteries (3x) $7.47 $0.00
Bought Battery Pack $9.99 $9.99
Battery Charger $15.99 $15.99
Omni Wheels (x3) $25.98 $25.98
Motors (x3) $79.53 $79.53
Hamster Ball $30.00 $30.00
HC-05 Bluetooth Module $8.91 $8.91
Total $229.40 $170.40

Fabrication Details

None of the fabrication costs below were taken out of the budget. We used material that was already available to us.

Part Fabricated Fabrication Time (Hours) Stock Type Stock Amount Stock Amount (sq. in.) Stock Price (per sq. in.) Stock Cost
Motor Mounts (x6) 2 1/32" Aluminum 8"x11" 88 $0.04137 $3.64
Wheel Mounts (x3) 3 1/2" Diam. Nylon 4.5" 4.5 $0.16300 $0.73
Arduino Platform 2 1/32" Aluminum 8"x5.5" 44 $0.04137 $1.82
Epoxy 1 Clear, 2 Part Epoxy 50 mL N/A N/A $9.94
Pipe Cleaners N/A N/A 1 Pack N/A N/A $5.00
Robot Chassis .5 1/4" MDF 9"x9" 81 $0.01040 $0.84
Total 8.5 $21.97