Post Mid-Term ReviewLayout Drawings
ME 4182Submitted 6/28/06
Yuki Miyasaka, Anthony Palladino, David Price, Whitney Price, Ricky Sandhu
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