Overview of Status of Analysis, Design, Fabrication, Tests, etc.
Prototype of the winch design has been completed and is operational
Toggle swicth to release pawls is designed
Pole clamp design is being finalized
Accomplishments from Previous Week
Completed the winch design prototype
Completed second draft of report and website
Identified changes that need to be made for next prototype
Completed design of toggle switch
Began FMEA
Goals for Next Week (list names after each item). Use specific and measurable objectives.
Purchase supplies for final prototype - CJ
Fabricate final prototype - CJ and Travis
Complete design of pole clamp - Stephanie and Justin
Construct pole clamp - Stephanie and Justin
Construct toggle to release pawls - Travis
Create first draft of poster - Stephanie
Complete FMEA - Justin
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Notes from meeting with Dr. Mazzei on 5/22/12
You could make it so that it is reletively easy to remove:
could set it up so that there is only a screw on one side of the pole clamp
it would also be nice to have a handle on the one screw so that it is easy to unscrew without a tool
He thinks our device looks sophisticated and could be sold pretty easily
If we need him to bring a bag to display how this works, he can
He would like to go with all clear acrylic for final prototype
Instructor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Notes from Dr. Delson from presentation on 5/22/12:
Nice progress and nice presentation
Consider using translucent acrylic rather than 100% clear. It will actually be easier to see how device works especially if you ise different colors for translucent acrylic.
Please perform a Failure Mode Effects Analysis (FMEA). Search the web to see how this is done.
For final presentation, have a bag in the device during the animation.
In the pulley system, you may need a way to avoid adjusting the cable length.
For the pole clamp, can you add a quic release like on a bicycle wheel?
You will probably need two pole clamps to support torque.
Comments from Other Students in the Class (indicate date of comments and if via email or in person)
Notes from classmate from presentation on 5/22/12:
Great animation. Pivot idea for securing clamp sounds like a good idea, but will weight be evenly distributed? Overall sounds like a great mechanism!
Very nice animation, not sure if this is a concern: will the gear rotating only in one direction cause any inconvenicence.
Does infusion into a body create resistance to flow? Perhaps test flow rate with some degreee of resistance.
Test your springs! Take into account deformation over time. Great progress , your project is coming along great.
Requires two hand to operate? Any button or switchoperatible by the same hand that cranks?
Risks and Areas of Concern
Risks:
Strength of the materials after repeated testing
Areas of concern:
Obtaining proper testing materials such as more IV bags
Successful completion of remaining components
Ensuring that the toggle is strong enough to release the device
Ensuring that the pole clamp is sturdy enough to hold device on the pole
Resources or Information Required but not Available
None
Schedule
Purchase materials for final prototype - 5/30
Comlete design of pole clamp - 5/31
Complete construction of new prototype - 6/2
Complete construction of toggle - 6/3
Complete construction of pole clamp - 6/4
Budget (list amount spent and amount remaining)
Spent: $300
Remaining: $2200
Progress on Report and Webpage
Second draft of report and website have been completed
Information about the new final design solution has been added to both
Further improvement on the report is dependent on remarks from classmates
Website is continued to be updated to esure that all pages have appropriate and up to date content