156B Week 3

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

• • First functional prototype base plate and PCB are ready to be sent off for manufacturing.

Accomplishments from Previous Week

• PCB Designed & Sent off for prototyping - Leigh/Jesse

  • Need to verify with Steve Roberts that the PCB design will work before sending for purchase. (meeting on Wednesday)

• Purchase USB Components - Jesse

  • Need to verify with Steve Roberts that the PCB design will work before sending for purchase. (meeting on Wednesday)

• CAD Design of Plate - Harald

  • Preliminary CAD for USB 2.0 plate completed, ready for 3D prototyping

  • Combined CAD FEA completed for matched-pair base plate and determinations made for material choices and factor of safety.

  • Begun CAD/Analysis for USB 3.0 capability stretch goal

• CAD Design of Locking Mechanism - Trent

  • Preliminary design for locking mechanism determined (buckle lock)

  • CAD still needs to be started once implementation is figured out.

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

• • Order baseplate, PCB components - Harald

  • Order PCB before end of this week - Leigh

  • figure out way to incorporate buckle lock into one of the U-dots - Jesse/Trent

  • Start CAD for buckle lock wants implementation is figured out - Jesse/Trent

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

• • 4/13/2020 Meeting Minutes

    • Consider expanding capability to USB 3.0 datarate (9 conductor vs 4 conductor)

    • Exos/Purdue partnership on hold due to COVID-19, as of now no launch payload to be sent up using U-Dot system, may have to make a mockup cubesat as a proof of concept.

      • Consider using a 3D printed cubesat with a usb drive or other peripheral for passthrough.

    • Questions about payment/reimbursement structure for meeting on 4/15/2020 w/Professor

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

• • N/A - Design Proposal Last Week

  • Considered Zebra connector, zebra connector footprint presents problems with interfacing etc.

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

Risks and Areas of Concern

• • Exos/Purdue partnership on hold/cancelled until further notice, likely that payload and/or launch date may not materialize during the course term.

    • In response to this, expanding the capabilities of the U-Dot panel and creating a mockup cubesat/payload will be higher priority.

Resources or Information Required but not Available

Schedule

• • Update Gantt chart.

  • V1 Purchasing to be completed this week (4/13/2020)

Budget (list amount spent and amount remaining)

Progress on Report and Webpage

• • Some sections of Final Report completed so far

    • Background

    • Review of Existing Solutions

    • Statement of Requirements

    • Deliverables

    • Title page

    • Appendix with Individual Component Reports