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Subsystem Build & Test Review

This project involves the design, build, and testing of a magnetically levitated propeller for 3D printed objects. The propeller is printed in ABS plastic and has a construction time of roughly 15 hours. The project includes updates on mechanical sheets, electrical systems, and the BeagleBone Black. The team also discusses the first draft of the poster and outlines the paper structure. Test plans, updated customer requirements, and team plans are included.

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Subsystem Build & Test Review

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  1. Subsystem Build & Test Review P16228: Magnetically Levitated Propeller

  2. 3D Printed Objects • Propeller • printed in the construct • roughly 15 hrs • ABS Plastic • The construct opens at 9 am so we are unable to bring the propeller to display during the review • Bernie volunteers to go and retrieve the construct at 9 am

  3. Mechanical Sheets 24 in total

  4. Electrical Systems Update • Soldered first iteration of controller board • There seemed to be a problem with the 24V power and the optocoupler • This was most likely caused from components being overheated during soldering • Soldering to a small, densely packed board can lead to parts accidentally being overheated. • Second iteration of controller board and first iteration of sensor board arrived this week • All components (along with backups) are in • Soldering will start today (Thursday) • Solenoid construction will start today (Thursday)

  5. BeagleBone Black Update BeagleBone has flashed to the latest image. Need to setup static IP address for Beaglebone. (Putty Can’t detect it.) • Need Linux OS (downloading Ubuntu on my old Laptop) • Verify Putty can connect to Beaglebone • Work and program along with Mike on Matlab (Simulink Integration) • trouble shoot code • Help Solder and testing Board with Eli

  6. Poster (1st Draft) First draft of the poster, scheduled to be completed by week 5. Will be altered and additions made over the course of MSD II.

  7. Needed Additions to Poster • Subsystem Description • Magnetic system • ER & CR • Are they satisfied? • Test Results • Did we meet our specs? • Conclusion • Evaluation • Can the design be improved upon? • Does the customer support the conclusion of the project • Aesthetics • background color • pictures

  8. Paper Outline (and tentative section responsibility) 1. Abstract [M] 2. Introduction [M] 3. Design Process [B] a. Engineering Requirements b. Solution(s) 4. Propeller Design [B,Z] a. Flow Calculations 5. Housing Design [Z] 6. Motor Design [E,Z,B] a. Torque/Power Calculations b. Motor Controller 7. PCB Layout [E] 8. Levitation System [M] a. Passive b. Active 9. Software Integration [M,C] a. Beaglebone Black b. MATLAB 10. BOM, Purchases [J] 11. Test Plans [E,Z,B] 11. Results and Discussion [J,C] 12. Conclusions, What’s Next [J,C] 13. References [J] 14. Acknowledgements [J]

  9. Test Plans • Updated test plans • Test plans are not based on individual subsystems • Created assembly plans • Instructions on how to correctly solder the boards • Wiring guides for the boards • Instructions for creating the solenoids • Created drawings as highest level reference • Has a dimensioned drawing of the two printed circuit boards • Lists the components used with each board, along with their parts references and values • Lists documentation references: assembly and test plans

  10. Updated Customer Requirements Removed all the requirements involving water • Operable in a submersible • Electricity isn’t conducted through water

  11. Updated Engineering Requirements Removed all the requirements involving water • Ensure complete sealing and moisture prevention

  12. Plans Team Plans • Continue work on poster • Continue work on paper (stepping up progress) • Run subsystem tests • Run multiple full system tests Individual Plans • Mike • Programming BeagleBone • Helping make solenoids • Work on paper • Zach • Continue magnetic hub development and testing • Fallback design refinement/improvement • Individual Plans (cont.) • Cheng • Beaglebone • Help coding in MATLAB • Help Soldering Test Board • Elijah • Solder and test new boards • Create and test solenoids • Work on paper • work on poster • Bernie • 3D print the enclosure • Test the propeller • Test enclosure • Update parts list • Work on poster • Joe • Work w/ Bernie to finish 3D printing of components • Finalize budget and obtain quotes for estimated spending (3D printing) • MATLAB coding w/ Mike & Cheng • Assist team with assembly/testing • Work on paper/poster

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