156B Week 5
Overview of Status of Analysis, Design, Fabrication, Tests, etc.
Deciding on button or pedal with swtich this week and making the purchase
Completed various LED configurations to show sponsor
For 1 design we need to know the type of drug injected. (Color and Opaqueness )
Decided on motor for our design
Performed the Lead Screw Analysis
Accomplishments from Previous Week
Pedal has been received and implemented onto prototype
Waiting for Sponsor's approval on size and requests on tuning
Ordered servo motor with encoder
Goals for Next Week (list names after each item). Use specific and measurable objectives.
Have switches or buttons ordered as well as purchase and program the 4 LED'S
Order the lead screw that fits our requirements
Testing and Calibration of the circuit for the pressure transducer
Fabricate a final syringe release mechanism for final design
Re-design syringe holder base to accommodate a new lead screw
Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Has not yet responded to the given designs, but we will meet with him next week to demonstrate our progress.
Instructor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)
Complete 3 Designs for the LED configurations
Complete the lead screw analysis
Complete 3 Designs syringe release mechanism
An op amp attached to the pedal potentiometer can increase the resolution
Keep in mind that the operator may try to keep their foot barely off the pedal when they want the syringe to be in resting position. An offset angle should be implemented to account this so that no accidental injection or aspiration occurs
Comments from Other Students in the Class (indicate date of comments and if via email or in person)
Risks and Areas of Concern
One area of concern is the pedal size and whether sponsor may think its too large when he actually gets to see it
Resources or Information Required but not Available
Schedule
Describe upcoming milestone
Update Gantt chart.
Budget (list amount spent and amount remaining)
Motor cost: $92.78
Progress on Report and Webpage
Have uploaded the designs that have been previously produced