Methodology

The provided budget for this project was $300. The final cost of this project ended up amounting to $974.28, but this accounts for materials which were found, recycled, or donated.

Electrical

Name Description URL Unit Cost Quantity Line Cost
DC Motor Controller Single channel, 13A, 5-25V Link 13.82 1 13.82
DC Motor 30:1 Gear Motor, 64 CPR Encoder Link 39.95 1 39.95
Coin Acceptor Programmable coin slot Link 19.95 1 19.95
Stepper Motor NEMA 17 Link 6.00 2 12.00
Stepper Driver A3967 Microstepping Driver Link 14.95 2 29.90
Servo Driver I2C, 16-channel Link 11.99 1 11.99
Limit Switches (10x) Microswitch Link 5.99 1 5.99
Joystick Four directions Link 14.95 1 14.95
Big Red Button 4" Diamteter, internal LED Link 9.95 1 9.95
Neopixels 60 LED Strip, Addressable RGB Link 24.95 1 24.95
Bus Bars 10 Circuit connector Link 5.16 4 20.64
ATX Power Supply Recycled from an old desktop N/A 0.00 4 0.00
204.09

Mechanical

Name Description URL Unit Cost Quantity Line Cost
80/20 Extrusion 10' length, 80-20 1.5"x1.5" Profile Link 55.95 7 391.65
T-nuts 5/16-18 Slide-in Offset Thread Link $0.27 99 $26.73
Socket Head Cap Screw 5/16-18 x .687" Flanged Button Head Link $0.36 91 32.76
80/20 Corner Bracket 15 Series & Ready Tube 4 Hole - Tall Inside Link $4.30 4 $17.20
80/20 Square Plate 15 Series & Ready Tube 4 Hole Link $4.95 4 $19.80
80/20 Angled Flat Plate 15 Series & Ready Tube 5 Hole Link $7.10 2 $14.20
80/20 Straight Flat Plate 15 Series & Ready Tube 2 Hole Link $3.45 4 $13.80
80/20 Straight Flat Plate 15 Series & Ready Tube 4 Hole Link $4.95 6 $29.70
Medium Density Fiberboard 1/4" x 2' x 4' Link $6.42 6 $38.52
Hardboard 1/8" x 2' x 4' Link $4.97 2 $9.94
Socket Head Cap Screw 5/16"-18 x 1" Link $0.28 8 $2.21
Machine Screw (100x) #4-40 x 1" Link $3.00 1 $3.00
Machine Screw (100x) #6-32 x 1" Link $3.53 1 $3.53
Machine Screw (100x) #8-32 x 1" Link $4.86 1 $4.86
Socket Head Cap Screw (50x) Black Oxide, 1/4"-20 Link $7.84 1 $7.84
Socket Head Cap Screw (50x) M3 x 12mm Link $4.00 1 $4.00
Hex Nut (50x) Grade 5 Steel, 1/4"-20 Link $4.42 1 $4.42
Hex Nut (100x) Low Strength Steel, #4-40 Link $0.87 1 $0.87
Hex Nut (100x) Low Strength Steel, #6-32 Link $1.24 1 $1.24
Hex Nut (100x) Low Strength Steel, #8-32 Link $1.60 1 $1.60
Hex Nut (100x) Low Strength Steel, #8-32 Link $1.60 1 $1.60
GT2 Pulley 20 Tooth, 50mm Bore Link $1.80 2 $3.60
GT2 Belt 1 m long, 2 mm pitch Link $3.99 3 $11.97
Hardened Steel Shaft 1/4" Diameter, 36" Length Link $16.38/td> 2 $32.76
White Delrin Stock 3/4" Thick x 3/4" Width, 1' Link $7.17 1 $7.17
Machineable Round Nut 3/8"-8 Size, 1/2" Travel/Turn Link $29.38 1 $29.38
Threaded Rod 3/8"-8 Size, 6' Long Link $16.86 1 $16.86
Alloy Steel Dowel Pin (25x) 1/4" Diameter, 1/2" Length Link $3.74 1 $3.74
6061 Aluminum Rod 1" Diameter, 1/2" Length Link $5.32 1 $5.32
Blue Spray Paint Gloss Deep Blue, 12 oz. Link $3.87 1 $3.87
Black Spray Paint Flat Black, 12 oz. Link $3.87 5 $15.48
Assorted PLA Parts 3D Printed Components N/A $5.00 1 $5.00
Assorted Vinyl Stickers Custom vinyl-cut stickers N/A $2.00 1 $2.00
Blackboard Fabric 1 sq. yard N/A $4.49 1 $4.49
$770.19