Overview of Status of Analysis, Design, Fabrication, Tests, etc.
Went to a local store on Miramar road called Harbor Freight Tools and purchased some wire to be used with the locking mechanism as well as a chisel holder which could potentially be used as a handle for a prototype
Some energy analysis and CAD work has been done for the new Linear Press and Scissor Lift designs
Accomplishments from Previous Week
Clarified the details on the new secondary objectives that the sponsor had.
System to prevent air from flowing into the line can be mechanical instead of electrical
Received Cell-Saver Bag
Decided to put Clamp design considerations on hold to pursue more feasible alternatives
Began energy analysis of scissor lift design
Determined dimensions of scissor lift design
Sketches completed
Began design and analysis of linear press
Made solidworks model of new design
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Meeting with Dr. Mazzei on 4/6/12
In spite of the additional sensing component, he would like the compression action to remain simple and wire free
Consider a rotating actuator that would have mechanical advantage similar to a screw
Cj showed him some of the safety mechanisms he had found for the component analysis and he liked the remote aspect of them
Instructor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Meeting with Dr. Delson on 4/5/12
Make progress report more specific
Focus on the compression of the IV Bag instead of air sensing
Actions Taken:
Rewrote week 1 progress report
Put a hold on Cell-Saver Bag consideration until overall design is more developed
Meeting with Mike Morris 4/10/12
Conduct feasibility analysis before continuation of prototype fabrication
Concerned over the narrowness and location of pivot in clamp design
Suggested a Scissor Lift Mechanism
Actions Taken:
Halted production of prototypes in order to conduct a more thorough analysis
Initial design of Scissor Lift mechanism drafted and Energy Analysis started
Comments from Other Students in the Class (indicate date of comments and if via email or in person)
Why can you not use a pump and micro-controller? It would be relatively cheap, could be battery powered, and be much smaller than our current design options. (4/11 in person)
Risks and Areas of Concern
Scissor Lift
Validity of equations
Force required for operator to open the mechanism
Linear Press
How to attach a lever to the linear press in order to make it easier to pull apart
What spring dimensions to use with the linear press
Placement of springs and guide rods on the linear press
Resources or Information Required but not Available
N/A
Schedule
Finish analysis and design on all concepts by April 14th
Order materials for prototypes by April 17th
Construct Prototypes by April 25th
Budget (list amount spent and amount remaining)
$1500
Progress on Report and Webpage
Webpage was set to private