156B Week 5

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

• • CAD model of the gyroscope has been updated

  • parts for precessing frame and base have been ordered, but haven't arrived yet

  • more bearings have been ordered for nutating frame and gyrowheel

  • decided on and orderedmotor parts, will initially used motors provided in lab to test before ordering one

  • decided on support for base and ordered necessary parts

  • drilled holes in nutating frame

Accomplishments from Previous Week

• • Aki - conducted more in-depth gyroscope analysis for Prasad

  • Everyone - decide on support for gyroscope and order along with brackets

  • Cross - ordered necessary parts

  • Steven - completed and uploaded and updated draft of report to website

  • Steven - updated gyroscope dynamics portion of website

  • Steven - met in person with representative at Motion Industries for in-depth discussion of bearings and shaft collars; ordered necessary bearings and shaft collars

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

• • Everyone - build a working prototype before presentation in week 6

  • Steven and Aki - complete and upload first draft of report - Finish by end of day 5/4/18

  • Everyone - complete intermediate peer review by end of day 5/4/18

  • Steven and Aki - complete first draft of website by end of day 5/4/18

  • KC and Cross - construct precessing frame once parts arrive

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

• • none - we did not have a lot to discuss, we are mostly just waiting on parts right now

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

• • 4/23/18 in person:

    • recommended using flexible shaft collar with bearings - we have decided on and ordered shaft collars

    • Recommended Misumi or Mcmaster Carr for order parts - met in person at Motion Industries 

    • How will motor be powered? - order a battery pack

    • Recommended creating a figure of boomerang and gyroscope side by side with similar annotations - we will work on this and incorporate it into our next presentation

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

• • none

Risks and Areas of Concern

• • Shaft collars have been ordered but might not come in time to build a prototype before Proof of Concept Presentations in Week 6

  • Other parts might not arrive until later in the week too, meaning there will be limited opportunity to work in the machine shop

Resources or Information Required but not Available

• • Talked with Landon at Motion Industries about bearings and shaft collars. He was very helpful, could be useful to contact him again in the future

Schedule

• • Describe upcoming milestone

    • working prototype before week 6

    • Proof of Concept Presentations week 6

    • First Draft of Report and Webpage and Intermediate Peer Review due 5/4 by midnight

  • Update Gantt chart.

Budget (list amount spent and amount remaining)

• • have spent approximately $500

  • we have $500 left and also $600 machine shop budget

Progress on Report and Webpage

• • updated draft of report has been uploaded to website

  • Gyroscope dynamics portion of webpage has been completed