Trapped! 60°. The Concept To create a vehicle, using no power sources outside of two mouse trap springs, that has the ability to climb a rope coming out.

Trapped!Trapped!

60°

The ConceptThe Concept

To create a vehicle, using no power sources To create a vehicle, using no power sources outside of two mouse trap springs, that outside of two mouse trap springs, that has the ability to climb a rope coming out has the ability to climb a rope coming out of the ground at approximately 60of the ground at approximately 60°.°.

Initial Design ConceptInitial Design Concept

Gears

Drive Wheel

Traction Wheel

Frame

Frame

Design ComponentsDesign Components

FramesFrames

Design ComponentsDesign Components

FramesFrames Steel AxlesSteel Axles

Design ComponentsDesign Components

FramesFrames Steel AxlesSteel Axles Aluminum AxlesAluminum Axles

Design ComponentsDesign Components

Frames Frames Steel AxlesSteel Axles Aluminum AxlesAluminum Axles GearsGears

Design ComponentsDesign Components

Frames Frames Steel AxlesSteel Axles Aluminum AxlesAluminum Axles GearsGears Drive and Traction Drive and Traction

WheelsWheels

Design ComponentsDesign Components

Frames Frames Steel AxlesSteel Axles Aluminum AxlesAluminum Axles GearsGears Drive and Traction Drive and Traction

WheelsWheels SpringsSprings

Design ComponentsDesign Components

Frames Frames Steel AxlesSteel Axles Aluminum AxlesAluminum Axles GearsGears Drive and Traction Drive and Traction

WheelsWheels SpringsSprings ScrewsScrews

Cost / Weight AnalysisCost / Weight Analysis

PVC Frames – 2x .04 lbs @ $0.40 / lbsPVC Frames – 2x .04 lbs @ $0.40 / lbs

= $ 0.032= $ 0.032 UHMW Drive & Traction Wheels – 2x .05 lbs @ $0.48 / lbsUHMW Drive & Traction Wheels – 2x .05 lbs @ $0.48 / lbs

= $ 0.012= $ 0.012 Plastic Gears – 2x .0125 lbs @ $5.00 / lbsPlastic Gears – 2x .0125 lbs @ $5.00 / lbs

= $ 0.125= $ 0.125 Steel Gear – 1x .01 lbs @ $1.67 / lbsSteel Gear – 1x .01 lbs @ $1.67 / lbs

= $ 0.0167= $ 0.0167

Cost / Weight Analysis Con’tCost / Weight Analysis Con’t

Screws – 2x .0025 lbs @ $1.67 / lbsScrews – 2x .0025 lbs @ $1.67 / lbs= $ 0.00835= $ 0.00835

Steel Axles – 2x .005 lbs @ $1.67 / lbsSteel Axles – 2x .005 lbs @ $1.67 / lbs= $ 0.0167= $ 0.0167

Aluminum Axles – 2x .0025 lbs @ $5.00 / lbsAluminum Axles – 2x .0025 lbs @ $5.00 / lbs= $ 0.025= $ 0.025

Mouse Trap – 2x $0.30Mouse Trap – 2x $0.30= $ 0.60= $ 0.60

Cost of Materials $ 0.83575 per unitCost of Materials $ 0.83575 per unit

Total Production CostTotal Production Cost

Labor Cost:Labor Cost:

10 minutes of assembly10 minutes of assembly

*5.15/hour (min wage)*5.15/hour (min wage)

= $0.88 / vehicle= $0.88 / vehicle

TOTAL COST $0.84 + $0.88 = TOTAL COST $0.84 + $0.88 = $1.72$1.72

Pending Design ModificationsPending Design Modifications

More rigid driving axleMore rigid driving axleThicker gearsThicker gearsHorizontal alignment (gears)Horizontal alignment (gears)Adjustable tension wheelAdjustable tension wheelBetter tractionBetter traction

Benefits and AdvantagesBenefits and Advantages

Weight -- .225 lbsWeight -- .225 lbsSizeSizeCostCostAestheticsAesthetics

The next model The next model willwill climb the rope! climb the rope!