December 3, 2019

DESIGN SHOWCASE

A Special Word of Thanks to Our Judges

It is my pleasure to offer a personal welcome to the judges of the Colorado School of Mines Capstone Design@Mines Fall 2019 Design Showcase. We appreciate your willingness to take time from your normal activities to evaluate our seniors’ capstone design projects. The opportunity for our students to get feedback from experienced engineers is invaluable.

The Capstone Senior Design program allows our students to demonstrate the engineering knowledge that they have acquired throughout their undergraduate course of study, and to do so in a multi-disciplinary design environment. We encourage you to spend time with the design teams and to inquire about their projects and their designs. But also ask about their design process, because in the final analysis, capstone design is as much about learning the process of design in a team environment as it is about creating a design. As these students enter the workforce, it is their ability to use design thinking methodologies that they have learned that will serve them most in their careers.

We are proud of our students and their accomplishments and hope you are equally impressed. If you would like to get more involved in our program, we are always in search of more project sponsors / project clients. Let us know!

Again, thank you and Happy Judging!

Kevin L. Moore Vice Provost for Strategic Initiatives &

Dean of Integrative Programs

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TABLE OF CONTENTS

SUPPORTING THE PROGRAM 1

PROJECT SPONSORS 2

BECOMING A SPONSOR 3

INFORMATION FOR JUDGES 4

PROJECT LIST 5

PROJECT SUMMARIES 6-16

BROADER IMPACTS ESSAY 17

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SUPPORTING THE PROGRAM The Capstone Design@Mines Program relies on the generosity of our program supporters to fund our intercollegiate competition teams and community development projects, as well as to outfit the Design Laboratories and project build environments. If you or your organization are interested in supporting these elements of the program, please consider making a financial gift through the Mines Foundation or via giving.mines.edu. Make sure to clearly mark your gift for Capstone Design@Mines. Your gift is tax deductible and will make a huge impact on our students.

Colorado School of Mines thanks the organizations, families, and individuals listed below who have

provided valuable support to the students in this cycle of the Capstone Program.

PROGRAM PARTNERS $25,000 +

J. Don Thorson

PROGRAM SPONSORS $10,000 – $24,999

Gerald & Karen Zink

Shell Oil Company

PROGRAM SUPPORTERS $5,001 - $9,999

Al Cohen Family Pinyon Environmental, Inc.

PROGRAM DONORS $100 to $5,000

IEEE Kiewit Corporation Lockheed Martin

REVESCO Sierra Nevada Corporation

Transthetics

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PROJECT SPONSORS Colorado School of Mines thanks the individuals and organizations listed below who have served as clients for the student teams presenting today. Your donation of time, talent, and material support to our students are greatly appreciated.

Colorado Trout Unlimited / Boulder Flycasters Chapter

Golden Community Sponsors

Human Centered Design Studio

iDE Mozambique

JeffCo Open Space

Quality of Life Plus

Mines Center for Entrepreneurship & Innovation

Mines Electrical Engineering Department

Mines Engineering, Design & Society Division

Mines Petroleum Engineering Department – Strategic Relationships

REVESCO with Calibre Engineering

SpaceX Hyperloop Competition

Transthetics

Dr. Terry Lowe, Metallurgical and Materials Engineering Department

Dr. Brian Thomas, Mechanical Engineering Department

Mr. James Stoddard

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BECOMING A SPONSOR

The Capstone Design@Mines Program pushes students to go beyond their classroom training and solve real-world design problems. Every semester the program works with approximately 50 project sponsors to provide 70 projects to student design teams with meaningful design challenges, spanning a two-semester sequence that can start in either the fall semester or the spring semester.

What opportunities does your organization have that could be addressed by a motivated student team?

SPONSORSHIP FEE Corporate project sponsors pay a sponsorship fee, of which up to half

is made available to the student team for purchasing materials or other project expenses. The remainder supports program facilities, staff, and overhead. Government agencies, NGOs, and other community groups pay a significantly reduced fee and any project material costs.

TIME COMMITMENT The involvement of the project sponsor when serving as the project client is a key factor in the success of the project. Great project clients commit approximately one or two hours every other week to support the student team and ensure a touch point with the team (face-to-face meeting, Zoom or Skype call, etc.) In addition, we also welcome any training or on-site resources that you can make available to the students.

GETTING STARTED Check out our website at https://capstone.mines.edu/project-sponsorship/ for additional information on becoming a sponsor or send an email to deisgn@mines.edu to start exploring opportunities with program staff.

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INFORMATION FOR JUDGES

JUDGES’ AGENDA Time Description Location

7:30 – 8:15 Welcome Breakfast and Judge Registration

Student Center, Ballrooms D&E

8:15 – 11:00 Judging (closed to general public access)

Student Center, Grand Ballroom

9:30 – 11:00 Design Showcase Open to the Public

Student Center, Grand Ballroom

FINDING YOUR WAY AROUND

A floor plan of the Design Showcase is included in the front of this program for your convenience.

JUDGES’ LOUNGE

Snacks and beverages are available for judges in the Judges Lounge, Ballrooms D&E (same location as breakfast). Please feel free to take a break from talking with the teams and grab a beverage in the lounge at any time.

SCORING

We seek to achieve consistency in project evaluations between judges. With that in mind, the Capstone Design faculty have developed the scoring ballot to aid your judging. Each evaluation category includes prompting descriptions to guide the evaluation process. To evaluate a team, please select one of the descriptive words for each evaluation criteria. Scores are automatically tallied within the electronic balloting system; you do not need to provide a numeric assessment.

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FALL 2019 DESIGN PROJECTS

This semester, we are proud to present the work of 19 design teams, some of which are represented by multiple sub-teams, at the Capstone Design@Mines Fall 2019 Design Showcase. A list of the student design teams is provided below. In addition, each team has provided a short synopsis of their design challenge, which you will find in the following pages.

Team Number

Project

1 Pine Valley Ranch Park Drainage Project

2 South Boulder Creek Infrastructure and Design

3 Aspirational Post-Harvest Tech. for Rural Mozambique

4 Geothermal Power Supply Sub-System

5 Adaptive Mountain Bike

6 Mono-Ski Transport System

7 Tesla Coil with Learning Modules

8 High Energy X-Ray Fast Shutter

9 Continuous Casting - Control System, Measurement, Validation

11 Innovation Hub Design Exhibits

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Human Centered Design Studio (4 projects from the HCDS team): Bi-Ski Transport Cart for Beaver Creek Transradial Prosthetic Arm Force-Field Suspension System Adaptive Speed Skate

13 Prototype to Rotate Subsurface Wellbore Casing

14 The Bionic: All-in-One Penile Prosthetic

16 Denver River Mile Project

17 Pedal Hybrid Off Road Vehicle

18 Transportation Tie-Down Alert System

19 Golden Bandshell

20 SpaceX Hyperloop

21 Demagnetizer to Levitate Medical Cannula

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1 | Pine Valley Ranch Park Drainage Project

2 | South Boulder Creek Infrastructure and Design

The Pine Valley Ranch Park open space, located in Pine, CO, has been experiencing significant erosion and sediment accumulation problems throughout the park, often clogging the existing storm water infrastructure and causing the need for frequent maintenance. Even relatively insignificant rain events cause sediment to accumulate throughout the park due to the local geology, low permeability of the ground cover, and the surrounding steep slopes.

In order to address this issue, our solution encompasses three primary goals: to reduce sediment accumulation, maintain the effectiveness of current infrastructure, and implement additional cost-effective drainage infrastructure that further aids in minimizing sediment accumulation in the park.

Our team performed a hydrologic analysis of the park and a hydraulic analysis of the existing drainage infrastructure in order to design a complete erosion control solution that will be implemented along with other capital improvement projects at the park.

Our design offers a low maintenance solution that mitigates erosion in key areas while maintaining visitors’ park experience and preserving historical structures. The proposed solution offers economic feasibility, maximum effectiveness of design, and a minimalistic visual presence that is aesthetically pleasing and blends in with the park’s natural environment.

Team members: Caleb Dotten Ari Fernandez Jessica Kehres Daniel Lee Sean O’Dell Abigail Paul Advisor & consultants: Dr. Kristoph Kinzli Sponsor: Jefferson County Open Space

The expansion of Gross Reservoir in Boulder County, Colorado presents a unique opportunity to address low flow environmental needs along South Boulder Creek. In order for the cities of Boulder and Lafayette to shepherd this water downstream, an extensive catalog and assessment of current structures had to be completed. The Eldorado Engineering team was able to perform this analysis and take on an additional task of redesigning the East Boulder Ditch diversion structure to allow for fish passage, habitat health improvements, and structural maintenance and efficiency advancements.

During the first phase of the project, the team completed six extensive field visits necessary to collect all data needed to assess and document the 19 diversion structures present. The team was able to take this data and present it in a user-friendly website for the client to view in addition to a spreadsheet. For the second phase of the project, the team completed a detailed redesign of East Boulder Ditch. This redesign, if implemented, will greatly impact both the health of the creek from a biologic perspective and the efficiency of the structure to divert water when needed according to Colorado Water Rights. Unlike many engineered fish passages, we designed this to model a natural rocky ramp in order to connect fish populations which have been disconnected for decades.

Team members: Willie Konishi Chris Corona Dawson Johnson George Sandoval James Hawthorne Sam Waxlax Advisor & consultants: Julia Wilson Dr. Andres Guerra Sponsor: Trout Unlimited Wright Water Engineers Biohabitats GEI Consultants

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3 | Aspirational Post-Harvest Tech. for Rural Mozambique

4 | Geothermal Power Supply Sub-System

In Mozambique roughly 30% of all agricultural production is lost annually due to ineffective storage methods and facilities. This is a massive blow to the economy, as agriculture is the main source of income generation for the public. Unlike countries similar to the U.S., crops are not grown and harvested by large companies or farming groups with the latest technology. Yearly food supply ebbs and flows with the production of roughly 4 million small business farmers.

Our group was tasked with designing a method for helping not just the farmers, but the often-underrepresented female sellers, preserve their produce for future market opportunities. Two of our team members traveled to the small town of Chimoio to gain insight on community needs and to initiate stakeholder engagement. Using their experiences, combined with guidance from iDE, our team was able to design a low-cost scalable solar food dryer. Simulating the materials available in country, we were able to produce a dryer that can operate year-round, along with a detailed construction manual to be distributed to the end users. The solution gives farmers the power to save their produce and empowers sellers by creating a new, year-round marketable product of dried foods.

Team members: Tyler Cooney Max Sweeney Moira Laughlin Emily Bedinger Alex Samarchuk Parker Bolstad Justin Dollar Advisor & consultants: Julia Wilson Llionel Simbarashe Zisengwe Doreen Tekedese Sponsor: International Development Enterprises Mozambique

Craig, Colorado, has long experienced a dependence on its local fossil fuel industry (coal, oil, and natural gas extraction) for economic benefits. However, the changing economic and environmental times have mandated that the community address the demand for a diversified, sustainable economy, specifically in the progressive shutdown of over 80% of the production capacity by the year 2030, within its coal-fired power plant, Craig Station: Tri-State Generation and Transmission. Given the magnitude of impact this shutdown will have upon the local economy and residents in Craig, and Moffat County, project sponsor Jim Stoddard proposed this problem as a capstone project to conduct a feasibility analysis of using geothermal energy to replace the impending power deficits. Team Terra, a team of five Colorado School of Mines seniors, has conducted a feasibility analysis examining the potential for geothermal power production at Sombrero Ranch, and two additional geothermally active locations within Moffat County’s vicinity. Additionally, Team Terra analyzed the prospect of solar and wind generation implementation at these locations along with a comparative cost analysis for their findings. This project is unique in that it addresses a major obstacle to the transition to renewable energy generation; the challenge of addressing how to transition from traditional centralized power infrastructure to diverse, robust decentralized forms that can address the needs of sparsely populated, rural communities.

Team members: Benjamin Thompson Gretchen Ohlhausen Mystic Currey Melissa Breathwaite Colum Marshall Advisor & consultants: Emily Sievers Sponsor: Jim Stoddard

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5 | Adaptive Mountain Bike

6 | Mono-Ski Transport System

Mr. Humberto Reyna was a State Highway Patrol Trooper in North Carolina who suffered a traumatic brain injury while on duty. This injury has left Mr. Reyna with multiple challenges, including hypersensitive smell and hearing, balance issues, and spasticity on the right side of his body, requiring 24/7 care from his wife, Kay. Part of his rehabilitation consists of competing in triathlons which help increase motor function as well as quality of life. However, because of Mr. Reyna's injuries, and the risk his compromised balance poses in riding an upright bicycle, he is limited to riding a recumbent tricycle for the increased stability and lower seating position.

Mr. Reyna has previously competed in the XTERRA Beaver Creek Triathlon but found his recumbent trike to be too cumbersome for the single-track portion of the race. We were then tasked to modify a recumbent trike to ensure Mr. Reyna’s success the next time he participates in a triathlon. We obtained the "Pocket", a recumbent trike from the company 'Catrike', and proceeded with modifications. These modifications consisted of a new rear brake and rear wheel assembly, new gearing, new drive train, larger tires and a new rear wheel extension bracket with an engineered adapter for the axle. Mr. Reyna was able to compete In the XTERRA Beaver Creek triathlon this past July and with our modified trike he was able to shave 15 minutes off of his overall biking time.

Team members: Justin Erikson Shona Hansen Taylor Keller Tyler Lee Kylie Liddell Dominique Rivera Sefrie Roybal Advisor & consultants: Antonie Vandenberge Court Allen Sponsor: QL+

Our team was tasked with creating a system for our end user that would allow him to transport his mono-ski without additional help. Our design utilizes connection points on the end user’s wheelchair to attach a trailer system. The trailer has a ski binding which will imitate connecting to the physical ski. The ski is mounted using a ski rack that is positioned vertically on the opposite side of where the mono-ski bucket sits. The end user will have to connect the axle clamp and then place the trailer on the axle clamp in order to connect the system. This can all be without additional help. The system is created to withstand the elements that are seen in and around a ski resort. This system allows for our end user to be more independent and eliminate some of the hassle when trying to get to the ski lift.

Team Members: Corbin Cargil Chase Clayton Mark Dyck Spencer Morgan Peyton Sanders Ben Volkmann Advisor & Consultants: Jose Verissimo Sponsor: QL+ represented by Court Allen

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7 | Tesla Coil with Learning Modules

8 | High Energy X-Ray Fast Shutter The Argonne National Laboratory uses x-ray technology to characterize and

study materials. The goal of this project is to design, build, test, and validate a high energy x-ray shutter. The shutter must attenuate a 2 mm x 3 mm rectangular x-ray beam. The shutter must be able to fully open and close in the span of milliseconds.

The solution consists of a tungsten shutter piece, direct-drive voice coil driven actuator, and a PC based control system. The tungsten shutter piece attenuates an x-ray beam of 20 to 100 keV. The actuator moves the tungsten piece along one axis blocking and unblocking the beam, achieving switching times of less than 2 milliseconds. The control system integrates with the existing lab system, allowing easy implementation of new experimentation techniques.

Our shutter design will be implemented at Argonne National Laboratory’s multi-billion-dollar Advanced Photon Source facility. There it will be used for material science and engineering experiments by hundreds of researchers all over the world.

Team members: Team members: Joshua Esty Emily Novotny Lundy Wyre Mitchell Magdaleno Katrina Lidgard Robert Zampino Advisor & consultants: Dr. Aaron Stebner Dr. Jeff Squier Dr. Branden Kappes Antonie Vandenberge Sponsor: Argonne National Laboratory

Colorado School of Mines is always looking to reach students in creative, captivating, and constructive ways. Seeing a potential to reach students, Darren McSweeney had a vision to implement a Learning Laboratory where students could work on premade projects which interested them. One of these projects was a Tesla Coil, with associated learning modules.

Team Tesla was founded and was tasked with scoping out what should be built to best facilitate student learning. Keeping the scope of the lab in mind, Team Tesla decided that a bipolar tesla coil which has a controlled spark gap would be most suitable for student use. At the conclusion of this project, Team Tesla has created a working bipolar Tesla Coil as well as an associated learning module, for students to be able to use the Tesla Coil on their own. Going forward, the potential learning modules and student interest are near endless and will allow electrical engineering students to explore areas of interest that can be both inside and outside the standard curriculum.

Team members: John Wiens John “Jack” Norton Joseph Woodard Matthew Dalton Tariq Alghamdi Advisor & consultants: Yosef Allam Chris Coulston Hisham Sager Sponsor: Darren McSweeney

Linear Actuator with Tungsten Piece to Attenuate Beam

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9 | Continuous Casting - Control System, Measurement, Validation

11 | Innovation Hub Design Exhibits

Continuous casting is a process used to produce over 95% of the world’s steel. During this process, molten steel flows into a tundish then into a mold through a submerged entry nozzle. The molten steel begins to solidify in the mold and rollers shape it into the final product, billets or slabs. Researchers from the Continuous Casting Center at CSM use a Water Model to simulate this process. The water model provides a visual representation of the process and helps support continuous casting research experiments.

Before our team got involved in January, the water model was difficult to operate, and researchers did not have any means of gathering quantitative data. Our goal was to add instrumentation and data acquisition capabilities to assist researchers, while also working to implement a control system to maintain a constant water level in the model. In order to achieve this goal, our group implemented various sensors and actuators to monitor and control parameters of the model. These instruments were used to create a control system that monitored water level and adjusted the flow rates to maintain a constant level.

Team members: Kevin Billings John-Paul Meyer Dustin Salley Kemper Young Advisor & consultants: Jose Verissimo Matthew Zappulla Hamed Olia Seongmook Cho Sponsor: Brian G. Thomas

The Innovation Hub is a soon-to-be constructed building on the Colorado School of Mines campus. We were tasked with creating exhibits that would showcase Mines in an artistic and innovative way. In an effort to create a foundation for the exhibits, the first semester focused on creating the theme “Engineering is the Evolution of Innovation”. Our team chose two specific prototypes, which we believe establish the boundary conditions for our theme, the past and the future of engineering.

The team chose to create a Water Clock and a Tour-Bot. Both exhibits serve to showcase the education that Mines provides as well as learning modules that can teach and inspire future engineers. The Water Clock is a unique exhibit piece that utilizes basic engineering concepts such as fluid dynamics and simple mechanical systems to mark the passing of time. On the other hand, the Tour-Bot is the first sub-system of an innovative self-sufficient robot whose goal is to lead tours through the Innovation Hub. This sub-system focused on motorization and the GPS functionality.

The Innovation Hub is a step in a new direction for Mines, one focused on business and innovation. These exhibits are a testament to the theme of the building and also aim to inspire future groups that will work in the Innovation Hub.

Team members: Dewey Allen Michael Gump Robert Hayes Jacen Hogard Jordan McGrath Taylor McRae Jennifer Mencin Eric Perez Tristan Prukop Ruben Rivera Peter Taenzer Advisor & consultants: Julia Wilson Christine Leahy Darren McSweeney Derrick Rodriguez Sponsor: Engineering, Design, and Society Division

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12 | Bi-Ski Transport Cart for Beaver Creek

12 | Transradial Prosthetic Arm

The mission of the Human Centered Design Studio at the Colorado School of Mines is to enable individuals, particularly those with disabilities, to try new activities and/or push their performance limits for the sports and recreations in which they are already involved. This project addresses the limited accessibility of the gondola.

Individuals with physical disabilities can find it difficult to easily transition from the slope to the gondola during a day of skiing. Those individuals with multiple sclerosis, muscular dystrophy, cerebral palsy, spina bifida or individuals with spinal cord injuries often utilize a bi-ski to traverse the slopes. However, these bi-skiers can encounter some obstacles including rubber matting, height changes in the terrain, and getting through the gondola door when maneuvering at the base area. Though a cart has been previously developed for a mono-ski, there remains a need for the development of a cart that can move a bi-ski effectively to the gondola.

This solution incorporates an aluminum U-channel in which the bi-ski will sit so that the athlete doesn’t have to dismount from their bi-to use the gondola. There are handles used for instructors to aid the skier and also double as beams that the athlete can use to balance themselves with while they are on board.

Team members: Paul Barker Logan Braden Cassandra English Heidi Hammond Nate Renfrew Brockton Sterling Nikki Vogel Advisor & consultants: Dr. Joel Bach Dr. Chelsea Salinas Sponsor: Human Centered Design Studio

“The mission of the Human Centered Design Studio at the Colorado School of Mines is to enable individuals, particularly those with disabilities, to try new activities and/or push their performance limits for the sports and recreations in which they are already involved.” (HCDS)

This particular project looks to address the issue of growth in a child, and having to repeatedly purchase new prosthetics in order to combat the development of their arm. The challenge also regards designing a product where children can easily and safely apply the prosthetic themselves.

The design consists of utilizing the BOA technology in order to achieve a variable radial solution to the child’s growth. As well as, the addition of new rings periodically to the forearm area of the prosthetic in order to aid in growth lengthwise. The BOA technology is safe and easy for the child to adjust themselves, if necessary, and the rings will need to be added by a doctor. The end result will be a prosthetic that can be altered radially to the child’s specifications, with the durability and comfortability to last many years.

Team members: Ryan Mabee Shawn Berry Audrey Shin Madison Ignacek Evan Gill Riley Stein Advisor & consultants: Dr. Chelsea Salinas Dr. Joel Bach Sponsor: Human Centered Design Studio

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12 | Force-Field Suspension System

12 | Adaptive Speed Skate

Though the Human Centered Design Studio at the Colorado School of Mines is known for enabling individuals with disabilities to participate in both sports as well as other outdoor activities, our project strives to do something different. Currently, devices such as wheelchairs are the main way to provide mobility to children with little ability to stand or walk. Though effective, these devices are difficult to maneuver around obstacles within a classroom. It is this issue that introduced the idea of designing a system to support a child, such that they are able to stand and walk independently within a large area of a classroom.

The structural design consists of a 12 ft. hoop that allows a linear bar to rotate within. The bar houses a pulley system which can be programmed to bear a certain percentage of the child’s weight, a unique aspect which aids in teaching the child to gradually bear their own weight while walking. This control system will attach to the child’s harness, giving them a full range of motion within the area of the hoop. Our device is unlike any other on the market due to its unique geometrical design as well as the independence it provides the child in learning how to walk without assistance.

Team members: Cassandra English Dominique Vogel Claire Knight Eric Feaster Dominick Dunn Advisor & consultants: Chelsea Salinas Joel Bach Sponsor: Human Centered Design Studio

The mission of the Human Centered Design Studio at the Colorado School of Mines is to enable individuals, particularly those with disabilities, to try new activities and/or push their performance limits for the sports and recreations in which they are already involved. The goal of this project is to produce an adaptive speed skate that will allow our clients to compete in long track races.

While there are currently both adaptive hockey and figure skates currently on the market, there are no adaptive speed skates. Although they are similar, they are not interchangeable as the needs of speed skaters vary greatly from hockey and figure skates. To develop a solution to this complex problem, a new design was created through iterative prototyping to meet our client’s needs. This project utilizes components from both adaptive hockey and figure skates to make a ground-breaking adaptive speed skate.

Through this process, a final adaptive speed skate attachment was created with safety, versatility, and durability in mind. This product is the first of its kind and allows our clients to break new ground in the sport of adaptive speed skating. The next steps in our project include optimizing the design for competition..

Team members: Cody Ullestad Katie Leiker Amanda Etcheverry Nick Gardner Ben Topper Lilly Creswick Advisor & consultants: Dr. Chelsea Salinas Dr. Joel Bach Sponsor: Human Centered Design Studio Quality of Life Plus (QL+)

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13 | Prototype to Rotate Subsurface Wellbore Casing

14 | The Bionic: All-in-One Penile Prosthetic

Debris build up from the drilling process of oil wells can lead to significant issues for the placement of casing inside the well. These debris pockets (bridges) can ultimately jam a section of casing making it impossible to move down or up the well with the casing. This issue leads to costly recovery operations and in some instances complete loss of the well.

Therefore, the team has partnered up with Colorado School of Mines petroleum department with the aim to design and build an operable tool based on the patent description provided by Dr. Will Fleckenstein. This tool will be based on the concept of a statorless turbine responsible for rotating a cylindrical underground casing inside oil wells and geothermal wells. The tool will exert a torsional force on the cylindrical casing in order to break apart debris obstructing its path. This process will enable drilling operations to reclaim old wells or advance new ones consequently saving millions of dollars in resources and operating time.

The device will also be constructed out of concrete to ensure the material is drillable and can be detached from the casing at any time. Design criteria emphasized the need for torsional output and economic efficiency. Turbine configuration inside the cylindrical casing resulted in three operable designs that possessed high torsional output and high economic feasibility.

Team members: Joshua Odom Ben Ferrera Gabrial Taylor Jacob Peroutek Advisor & consultants: Emily Sievers Dr. Will Fleckenstein Sponsor: Colorado School of Mines

As America becomes more and more accepting of trans people, many trans men are looking for alternatives to the very expensive, highly invasive, and risky gender reassignment surgeries that are currently available to them. However, these alternatives must be able to function and look the same as a natal penis. This project would be a difficult undertaking since this is a revolutionary idea with no similar products currently available.

Transthetics has tasked our multidisciplinary Capstone Design@Mines team, The Transformers, with designing a fully functional penile prosthetic known as The Bionic. But what exactly does fully functional mean? It means that The Bionic will be able to replicate all the functions of a natal male penis, such as the ability to urinate standing up, go from a flaccid to erect state and vice versa, packing (which means creating a bulge in the wearer’s pants to mimic the appearance of a natal male penis), ejaculating, and aesthetically appearing the same as a natal penis.

The design we selected is a cyclical system that uses the testicles as reservoirs for water. When the user wants their penis to become erect, they would release the water from one testicle into the shaft causing it to become erect.

Team members: Gary Stimson Ian Macwithey Ira Weyand Ryan Zamora Advisor & consultants: Dr. Kristoph Kinzli Sponsor: Alex Just, Transthetics

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16 | Denver River Mile Project

17 | Pedal Hybrid Off Road Vehicle As society becomes more aware of the negative impacts of internal

combustion transportation, a lightweight electric vehicle that could lend itself to fast short-range neighborhood deliveries, errands, and recreational excursions could benefit the population.

The designed solution is a vehicle that is intended for backcountry and urban users. The vehicle is intended as a replacement for internal combustion ATVs in the backcountry and also as replacement for short-range car travel around town.

Two side-by-side users pedal the recumbent-style pedal system, which in turn provides power that charges the on-board batteries. The electric motor provides the vehicle with a top speed of up to 30mph. Not only can the Pedal Hybrid Vehicle be used around town, it excels on off road terrain. The frame’s heavy-duty geometry, in conjunction with its suspension, provides a smooth ride on the roughest of terrain. There are not any electric vehicles out there quite like this one!

Team members: Chase Ganim Benjamin Hamel Keegan Gallagher Caylin Kuenn Andrew Sorterberg Sunsheng Liu Advisor & consultants: Yosef Allam Emily Sievers Sponsor: Jim Stoddard

The goal of the Denver River Mile Project is to redevelop the stretch of the South Platte from I-25 to Confluence Park. The new design should confide the 100-year flood plain to the river while keeping sediment suspended. The design should also improve human recreation, fish ecology, and bird ecology.

In this design, the riverbed will be altered to confine the 100-year floodplain to a smaller area. This design maintains a slope required to keep sediment suspended in the river. Recreational facilities such as slackline/hammock posts, informational signs, and an outdoor workout area will be implemented along the sides of the river. Steppingstones and a standing wave will also be included in the river design. The standing wave will include a state-of-the-art deployment method that allows the structure to disappear when not in use. Natural bed materials and a fish ladder will improve fish habitat and passage. A riparian zone of native plants will improve bird habitat.

This design is unique in that it includes all of these elements in a constrained space. All of the goals of this project were addressed, and various interests were balanced to create a one-of-a-kind design.

Team members: Joanna Gilbert Alyssa Hodgin Mary Mass Jake Moran Alexander Moreland Emily Townsend Advisor & consultants: Antonie Vandenberge Ashley Rust Scott Shipley Sponsor: Ben Murphy Calibre Engineering

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18 | Transportation Tie-Down Alert System

19 | Golden Bandshell

The latest study from the Federal Motor Carrier Safety Administration published in 2015 stated that 26,000 large truck crashes were due to load related issues. The Transportation Tie-Down System aims to provide the tension condition in the load securement system in real-time. The primary goal of this device is to effectively, accurately, and reliably detect tension in a tie-down strap to prevent load-related accidents.

To solve this problem, two designs were implemented. Both designs work on the same basic principles but are unique in their own right. One design detects tension in the strap utilizing an intermediary bar of steel, while the other is placed directly on the strap and is curved to translate tension into flexure on the device. Each solution operates with the use of strain gauges and microprocessors to relay real-time data to the cab of the vehicle. If tension in the strap is less than ideal, the device will send a signal to the user interface located in the cab. This will allow the user to pull over and address the situation before catastrophic events occur. Ultimately, the Tension Tie-Down Alert System aims to increase safety on the roads and prevent injury, loss of life, and items.

Team members: Cooper Cordero Alexi Drgac Jeremy Ingalls James Kohlschmidt Andrew Schmitt Edward Yi Advisor & consultants: Yosef Allam Jeffery Ackerman Darren McSweeney Sponsor: James Stoddard

The city of Golden is home to many great family-friendly outdoor festivals. For many years now, all of the major festivals have been forced to rent bandshell equipment from 3rd party companies. With low budgets and high equipment prices, many of the groups end up requesting financial assistance from the city. As the size and frequency of these events have grown, so has the need for the city to own their own equipment.

Our team evaluated the physical space of a nearby park and conducted community surveys to determine the best style of bandshell for the city and its citizens. After analyzing the results, we decided to move forward with a mobile bandshell design that could be pulled behind most trucks and would expand into a larger stage.

How our design differs from other mobile bandshells is that it has a full roof over the extended stage and is more cost effective. Our design also includes lighting and sound systems, which are omitted from many other mobile bandshell designs. A portable bandshell will allow the city to provide for an increased number of local events at an affordable price and potentially profit from nearby cities as well.

Team members: Oliver Heatwole Cole Shelton Jarran Arbach Peter Hunt Thomas Nortan Sean Cash Advisor & consultants: Emily Sievers Stephen Geer Sponsor: Janet Acree Dave Acree

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20 | SpaceX Hyperloop

21 | Demagnetizer to Levitate Medical Cannula

In 2013, Elon Musk released the concept of a high-speed transportation system widely known as Hyperloop. To facilitate its development, SpaceX has sponsored multiple Hyperloop Pod Competitions allowing student teams across the globe to design, build, and race their own prototype pod. This year, DiggerLoop hopes to be accepted into SpaceX’s international competition that will take place in July. Here, teams will compete for the title of having the fastest self-propelled pod. The DiggerLoop pod has been designed to reach speeds up to 300 mph within the mile-long test track. This is accomplished through a 420kW battery system supplying power to an electric motor. This motor then propels the pod down the track via a single racing wheel and a chain drive system. A NI controller reads data from various sensors and reacts at a given speed and position along the track. At the same time, it will also monitor the pressure, temperature, etc. so that the health of the pod can be ascertained. All of the components are efficiently placed on the lightweight, aluminum chassis and reliable stability system that allows the pod to maintain a low profile. This team, in addition to 14 SD1 students, hopes to become the first team from Mines, and one of the first teams from the United States, to successfully run at competition.

Team members: Clayton Oehrlein Aaron Siu Jon Rivera Tyler Fenton Zach Sheldon Seth Green Advisor & consultants: Dr. Kristine Csavina Darren McSweeney Tyler Evans Sponsor: SpaceX

Stainless steel needles or medical cannula are produced in large quantities each year for use by individuals with diseases such as diabetes; cannula have increasingly fine scale features that make them lighter and more difficult to handle during production. In order to ensure accurate, high precision alignment of the needles and their mountings to plastic housing, magnetic levitation can be used to position the needles for assembly – requiring the strength of the magnetic field in each needle to be the same. The objective of the senior design project is to build a demagnetizer capable of not only demagnetizing a cartridge of 300,000 hypodermic needles, but also control the residual magnetism in the needles. The design of the demagnetizer is modeled using the EMS plugin for SOLIDWORKS; CAD models are analyzed and modified to achieve the desired magnetic field strength. The magnetism inside the needles are adjusted by applying an alternating magnetic field, which changes frequency and amplitude – requiring a control system integration with the mechanical and electrical design. The final prototype of the demagnetizer is comprised of a coil with 2,000 wraps of copper wire, DC rectifier, capacitors, power resistors, solid-state relays, audio amplifier, diode, fuse, and LabView. The prototype also includes a proposed industrial manufacture design for a commercial product. Ultimately, the project delivers practical application to electromagnetic concepts.

Team members: Dylan McClain River Weiss Jordan Green Victoria Bennett Nicole Nguyen Advisor & consultants: Antonie Vandenberge Kevin Miles Joel Davis Sponsor: Prof. Terry Lowe

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Designed systems can impact the behaviors of people and environments. Develop a position that argues how an engineered system has positively or negatively impacted the behavior of society, the environment, and/or the economy. The essay should be related to either your project or your field of engineering and use contemporary, concrete examples in the arguments.

INDIVIDUAL BROADER IMPACTS ESSAY This semester, all Capstone Design@Mines students submitted individual essays about how their engineering choices impact the social, environmental, and/or economic lives of communities and individuals. The topic for this semester’s essay was:

The top 10 essays from this group of 120 senior engineering students were chosen by the course faculty and will be posted to the web site following this Design Showcase for your review.

Essay Title Author

Interstate Highway System Alex Moreland

Oil Pipelines: The Future of North American Energy Transportation Caleb Dotten

Electric Vehicles: Watts the hype about? Clayton Oehrlein

The Electric Vehicle Phenomenon Edward Yi

Plastic? The Problem? Gabrial Taylor

Food Transportation Gretchen Ohlhausen

Semiconductors: Serious Disasters John Wiens

Barcodes and Electronic Inventory Kevin Billings

Cars Injure Society River Weiss

Robbing Water Banks Until They Go Dry Willie Konishi

The three best essays will be announced along with the Design Showcase results. The top 10 best essays were judged by a fantastic and experienced panel of volunteer judges:

John Agee

Richard J. Collins Steven K. DeWeese Stephen P. Kutska Dr. Jennifer E. Labs

John J. McEncroe Zach Mott

Michael Oakley Dr. Arthur J. Pansze

Eric Phannenstiel Diane Prier

Wesley Ryan Martha L. Sanchez-Hayre

Scott Sanford Dr. Samuel Spiegel

Dr. Carol Weber Ken Witherell

We thank you very much for your time and effort involved in choosing the top essays!

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Judging Results (Released Post Showcase Event) Broader Impact Essay:

1st Willie Konishi “Robbing Water Banks Until They Go Dry”

2nd Gabe Taylor “Plastic? The Problem?”

3rd Clayton Oehrlein “Electric Vehicles: Watts the hype about?”

Overall Top Honors

1st S19-14 The Bionic: All-in-One Penile Prosthetic for Transthetics

2nd S19-01 Pine Valley Ranch Park Drainage Project for JeffCo Open Space

Best of Award for Societal Impact

S19-04 Geothermal Power Supply Sub-System for James Stoddard

Best of Award for Professionalism

S19-01 Pine Valley Ranch Park Drainage Project

for JeffCo Open Space

Best of Award for Innovation

S19-14 The Bionic: All-in-One Penile Prosthetic for Transthetics

Best of Award for Proof-of-Concept

S19-21 Demagnetizer to Levitate Medical Cannula for Dr. Terry Lowe, Research Professor, MME