Post Mid-Term ReviewLayout Drawings

ME 4182Submitted 6/28/06

Yuki Miyasaka, Anthony Palladino, David Price, Whitney Price, Ricky Sandhu

Overview

• Presentation

• Marketability

• Product Design

& Development

• Layout drawings

Presentation

• Problems/Concerns:– Unprofessional presentation– Density chart hard to read due to purple background– Face class during presentation

• Thoughts/Resolutions:– We had more people compliment our presentation

then criticize it– Change colorings to make it easier on the eye– Spend more time practicing/preparing for the

presentation

Marketability

• Problems/Concerns:– Limited number of times use– Cost of device compared to 2 guys with a

wheel barrow– Comparison to options from landscaping co.

• Thoughts/Resolutions:– “Do it yourself”– Not always 2 men around– Less strain and input from/by user

Product Design & Development

Choice of Design

• Problems/Concerns:– Why isn’t it a wheel barrow attachment?– Make it a normal cart with a rock removal

attachment for increased marketability

• Thoughts/ Resolutions:– Need more stability and structure than a

wheel barrow could give

Product Design & Development

Constraints caused by variability of rocks• Problems/Concerns:

– Does not allow for really tall skinny rocks or unusually wide rocks

– Should be able to handle a greater range of weights • Thoughts/Resolutions:

– Our focuses are now turned to the finer details such as these

– Need to specify a strict safe working load – Suggested to make the forks adjustable with

interlocking “L” brackets– Adjustable straps in “X and Y” directions– Possibly 2 sets of forks; inner and outter

Product Design & Development

Complications from Lifting• Problems/Concerns:

– What if rock is underground?– Ratcheting system?

• Thoughts/Resolutions:– Add a holder for a hammer and shovel– Once the harness is around the rock and the ratchet

pulls on it, the resistance of the rock will force the prongs under rock

– Constant angle adjustments will be required– Lower winching point or make it adjustable

Product Design & Development

User Input

• Problems/Concerns:– Who can use this?– What amount of force is necessary from user?

• Thoughts/ Resolutions:– Used by either sex– Limited user input

Product Design & Development

Specific Design Concerns and Problems• Problems:

– Design is too tall– Use over difficult terrain– Securing rock

• Possible Solutions:– Extended handle or telescoping arms– Handle to help grab device– Bigger wheels or more wheels to distribute weight– Possible fold out wheels– Varying straps in both directions

Layout Drawings – Rock Mover

Layout Drawings – Front View

Layout Drawings – Front Iso View

Layout Drawings – Rear View

Layout Drawings – Side View