Marching Band Triangles

The University of Idaho Marching Band will have a new addition to their halftime performances from this point forward, musical triangles. The Mechanical Engineering Capstone group, Pressure Angles has designed and manufactured musical triangles for each band member which feature flashing lights coming from our thoughtfully designed handle that will light up upon being struck. This project incorporates the design, manufacturing, and fabrication of: jigs, musical triangles, chimes, handles with internal circuitry and LEDs, and a sling allowing each band member to keep this rhythmic surprise hidden until they are ready light up the stadium.

=Problem Definition=

Background
The Marching Band has been featured with many capstone projects like the Bandbeesten for many years. But this year, 2019 the Marching Band director Spencer Martin had the idea of bringing the musical triangle back to life. Musical triangles aren't new to the marching band, but their high cost made it difficult to justify implementing them with each member of the band.

The triangles were decided to be made out of constructional rebar to cut cost without sacrificing sound. Mr. Martin wanted the triangles to have some flair so he envisioned a triangle that would have lights that would flash upon hitting the triangle with the chime. To house the electronics and protect them Pressure Angles decided to design a handle for the triangles that would incorporate an ergonomic fit, all of the necessary electronics. Working with Dr. Robert Rinker, Associate Professor and Associate Chair of the Computer Science Department we were able to receive guidance with prototyping the electrical components that go into creating this light emitting response.

With the help and guidance of Dr. Matthew Swenson, Dr. Edwin Odom, Dr. Steven Beyerlein, and Graduate Student Selso Gallegos we were able to develop the handle design to meet all criteria Spencer had in mind while remaining sleek and robust. With the help of the advisers above and machine shop manager Bill Magnie our team was able to developer a jig to create consistently sized triangles to make sure each sounded the same.

Deliverables
The Band Department, led by Spencer Martin, asked the Mechanical Engineering Department to create musical triangles for each band member. The triangles themselves are made out of rebar, and will be held with our custom handles specially designed to house a battery, LEDs, and a sensor that can pick up vibration from contact with the chime to signal the lights to turn on. It is important that each band member can remove and stow the triangle and its components swiftly during performances.

Specifications
By the end of the project Pressure Angles will have designed, manufactured, and fabricated 150 triangle packages. Each package consists of a triangle, handle with functioning electronics, chime, and a holster for everything to fit in.

=Design Considerations=

=Project Learning=

=Final Design=

=Validation=

=Team Members=

=Additional Documentation=

Project Schedule



Meeting Minutes

Presentations



Client Interview