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Subsystem Build & Test Review
P16228: Magnetically Levitated Propeller
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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
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Mechanical Sheets 24 in total
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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)
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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
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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.
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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
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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]
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Test Plans Updated test plans
Created drawings as highest level reference Test plans are not based on individual subsystems Has a dimensioned drawing of the two printed circuit boards Created assembly plans Lists the components used with each board, along with their parts references and values Instructions on how to correctly solder the boards Lists documentation references: assembly and test plans Wiring guides for the boards Instructions for creating the solenoids
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Updated Customer Requirements
Removed all the requirements involving water Operable in a submersible Electricity isn’t conducted through water
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Updated Engineering Requirements
Removed all the requirements involving water Ensure complete sealing and moisture prevention
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Plans Team Plans Continue work on poster
Individual Plans (cont.) Work w/ Bernie to finish 3D printing of components Cheng Finalize budget and obtain quotes for estimated spending (3D printing) Beaglebone Help coding in MATLAB MATLAB coding w/ Mike & Cheng Help Soldering Test Board Assist team with assembly/testing Elijah Work on paper/poster 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 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
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