Bangarang Musical Engineering University of Notre Dame Department of Aerospace and Mechanical Engineering Group Members: Roberto Ayala, Ryan Bradley, Pat Fox, Matt Medlock, Mike Tieu

Status of Design Concept Design currently visualized:

Status of Design Concept

Project Scheduling Project Scheduling - On schedule according to class deadlines, but slightly behind schedule according to group deadlines. Showstoppers Showstoppers - Program implementation and debugging

Last Week’s Action Items Item: Item: - Assemble the prototype Action: Action: - Wooden cover was machined by end of class 11/07 - Other parts can be assembled and interfaced with microcontroller since circuitry is complete Outcome: Outcome: - All vital components are assembled and functional. - Additional components e.g. drum clamps and name plate will be incorporated by Monday, Nov 20 th.

Last Week’s Action Item

Last Week’s Action Items Item: Item: - Software development Action: Action: - Met with Mr. Brownell on Outcome: Outcome: - Program was completed and successfully compiled on

Last Week’s Action Items Item: Item: - Begin prototype testing Action: Action: - Tested solenoid performance under different voltage drop values. (12 V, 10.29V, 9V) - Obtained value for maximum attainable beat rate Outcomes: Outcomes: - Variable volume generation was achieved - Maximum attainable beat rate is 5 beats/sec, with a solenoid cycle of 0.2 sec

This Week’s Action Items Item: Item: - Begin organizing information and graphics for CDR Action: Action: - Meeting has been planned for Monday, Nov. 20 th in order to evaluate and select material for presentation based on preliminary outline

CDRSlide 1. Design Objectives a. Assignment b. Concept selection approach 2. Original Concept a. Preliminary concept b. Research of target market 3. Chosen Concept a. Bangerautomation Drumset b. Product description and features 4. Technical Issues (feasibility) a. Drumstick actuation (solenoid) b. Variable force/volume capability c. Minimizing system response time d. Interface of vital components 5. Quantifiable Decision a. Required force generated by solenoid b. Spring selection with appropriate characteristics c. Product/prototype design requirements 6. Prototype Produced (image) a. Prototype description b. Product features selected for demonstration 7. Quantifiable Outcome a. Prototype grading rubric 8. Prototype Feasibility Demonstration a. Prototype video b. Conclusion

This Week’s Action Items Item: Test and debug program Item: Test and debug program Action: Action: - Load programming into microcontroller and test its compatibility with prototype hardware - Starting

This Week’s Action Items Item: Item: - Maximize prototype performance Action: Action: - Meeting Friday Nov. 17 th in order to address: a. Tune prototype settings in order to minimize response time and variable sound quality a. Tune prototype settings in order to minimize response time and variable sound quality b. Reduce undesired noise produced by solenoid rod impact b. Reduce undesired noise produced by solenoid rod impact

Questions????