156B Week 10

Overview of Status of Analysis, Design, Fabrication, Tests, etc.

• • Final touches being done on prototype

  • Presentation coming together

  • Present at Delta on Friday

Accomplishments from Previous Week

• • Made a 4X scale model

  • Mapped motor actuation to stage position

  • worked on report

Goals for Next Week (list names after each item). Use specific and measurable objectives.

• • Complete website

  • complete poster

  • complete report

  • Nail presentation at Delta

Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)

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 5/21

• 10-14 mm travel on stepper motor

• Cutting threads on the stepper - put a nut on lead screw first

• Deliverables 

  • 1 axis

  • Mechanical Advantage

  • 2X model - open loop but try to get sensors in here

  • Week 9 - final presentation to class

    • Create a slide for what we need to fill in once everything is done

Comments from Other Students in the Class (indicate date of comments and if via email or in person)

Comments from Proof of Concept Presentation (5/7)

• • Some compliments:

    • Good prototypes

    • Good job with the problem definition

    • Nice CAD, video, and pictures

    • Good progress and way to get a moving part

  • Some suggestions:

    • Have another video at a different angle or with better lighting.  Maybe point to the parts that are moving since our project is so small

    • Explain company's intention for having a 2X model.  Will be be downsized in the future?

    • Good luck on programming with I2C.  Talk to Steve Roberts on I2C programming

    • Pico-motors as a possible alternative to squiggle motors

    • Make sure that since you are splitting up the work to still communicate with each other

    • Utilize 3D printing.  What are you going to do for mechanical advantage?

Risks and Areas of Concern

• • Machining a 2X model with Tom

  • Drilling into flexure material for mounting

  • Getting closed loop control of the stages in the 2X model

Resources or Information Required but not Available

• • N/A

Schedule

• • Milestones:

    • Implementing the stepper motors in the final design

    • Controlling motors

    • Completing mechanical advantage concept

    • Finishing the 2nd draft of the report

Budget (list amount spent and amount remaining)

• • For a detailed account of the project budget please see the "budget" section of the website.

Progress on Report and Webpage

• • The website is being constantly updated

  • The progress reports are being constantly updated