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Here we attached our mechanism to the central housing unit which will sit at the center of the car. This shows us that we can successfully modify the wheel radius while it remains securely attached to the body of the car.
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Part | Usage | Quantity | Per Unit Cost | Total |
DS5160 Servo Motor | Rack and Pinion actuation | 1 | $34.99 | $34.99 |
DC 12V 110 RPM Motor | Accidental Purchase | 2 | $26.99 | $53.98 |
DC 12V 110 RPM Motor | Wheel Motors | 2 | $14.99 | $29.98 |
3 mm Linear Motion Shaft | Coupler and Crank Connection for final product | 2 | $11.17 | $22.34 |
1 mm Thick Washer for 40 mm Shaft Diameter Needle-Roller Thrust Bearing | Reducing friction between rack and slider | 4 | $3.76 | $15.04 |
M3*20 Screws | Coupler and Crank Connection for Prototype | 18 | $0.01 | $0.18 |
67.871 mm Wheel Slats (PLA) | Creates wheel | 6 | $0.19 | $1.15 |
67.871 mm Wheel Slats (ABS) | Creates wheel | 12 | $0.18 | $2.18 |
30 x 5 mm Crank (PLA) | Connects slider and wheel slat | 6 | $0.02 | $0.09 |
30 x 5 mm Crank (ABS) | Connects slider and wheel slat | 12 | $0.01 | $0.17 |
26 mm thick, 40 mm OD, 60 mm ID Slider w/6 connection points (PLA) | Slides | 1 | $0.99 | $0.99 |
26 mm thick, 40 mm OD, 60 mm ID Slider w/6 connection points (ABS) | Slides | 2 | $0.93 | $1.87 |
82.30 mm long, 40 mm OD Shaft (PLA) | Rotates wheel, acts as shaft for slider | 1 | $0.57 | $0.57 |
82.30 mm long, 40 mm OD Shaft (ABS) | Rotates wheel, acts as shaft for slider | 2 | $0.54 | $1.08 |
9.63 mm radius, 9.85 mm thick stopper ring (PLA) | Keeps slider from moving too close to gear box | 1 | $0.06 | $0.06 |
9.63 mm radius, 9.85 mm thick stopper ring (ABS) | Keeps slider from moving too close to gear box | 2 | $0.06 | $0.11 |
3.1 mm ID, 10 mm OD, 3 mm thick rack support ring (PLA) | Maintains rack vertical position in gear box | 3 | $0.00 | $0.01 |
3.1 mm ID, 10 mm OD, 3 mm thick rack support ring (ABS) | Maintains rack vertical position in gear box | 6 | $0.00 | $0.02 |
9.8 mm radius motor mount (ABS) | Attaches wheel motors to gear box | 2 | $0.01 | $0.02 |
30 tooth spur gear (PLA) | Turns rack | 1 | $0.24 | $0.24 |
30 tooth spur gear (ABS) | Turns rack | 2 | $0.22 | $0.45 |
65 tooth, 176.976 mm long rack gear (PLA) | Pushes slider along shaft | 1 | $0.52 | $0.52 |
65 tooth, 176.976 mm long rack gear (ABS) | Pushes slider along shaft | 2 | $0.49 | $0.98 |
170x76mm gear box (PLA) | Holds motors, rack, and spur gears | 1 | $4.83 | $4.83 |
170x76mm gear box (ABS) | Holds motors, rack, and spur gears | 1 | $4.58 | $4.58 |