The anticipation was sky-high in the Clark College STEM Building on March 11. Engineering students gathered near the drop tower in the three-story foyer and waited.

“Doors closing,” announced a student with a clipboard. The countdown began: “5, 4, 3, 2, 1!”

All eyes turned upward.

Then—whoosh! A robotic lunar rover plummeted from three stories above. Gasps filled the air as its parachute deployed, sending the rover gliding gently toward the ground.

Now for the real test: Would it land in one piece? Could it navigate the terrain, scoop up moon rocks (a.k.a. plastic balls), and cross the finish line—all on its own power?

Every term, engineering professors Tina Barsotti and Carol Hsu pose a real-world problem to their students and instruct them to design and build an object that solves the problem. Teams of students work together. At the end of each term, teams present their prototype to their peers, explaining their process and materials used. Finally, teams test their designs.

The Project Artemis Challenge

Engineering students were given this challenge during winter term:

Design an autonomous device that can withstand a three-story drop, collect as many gumballs as possible, and move to a designated end zone within the time limit.

Designed with NASA’s Project Artemis in mind, the purpose of this device is to collect geological samples from the moon’s surface.

To simulate landing on the moon, student engineers dropped their rovers from the STEM Building’s three-story drop tower. Most teams designed a parachute to slow the fall. If the vehicle survived the drop, its mission was to pick up as many gumballs as possible (simulating moon rocks) and cross the finish line—without human intervention.

Professor Carol Hsu said, “This project is particularly challenging as it requires withstanding a drop before completing a task. However, students consistently rise to the challenge and gain invaluable experience.” She added, “One of my students shared, ‘My daughter became interested in learning more about robotics after watching the competition!’”

During the winter engineering challenge, some teams’ projects succeeded and made it across the finishing line with “lunar rocks.” But a larger number didn’t survive the three-story drop. One of those teams, Isaac Newton’s Dog Diamond, gathered the pieces of their broken lunar rover and carried them back to a table to assess the damage.

One group reported: “We learned that the trial-and-error process does, in fact, involve error. These experiences taught us the importance of adaptability and persistence in problem-solving. If we were to do this project again, we’d spend more time on testing and making prototypes to improve the design.”

Designing within Engineering Parameters

Each team was required to design and build their vehicle to adhere to strict parameters.

Design specifications:

• Size: Must fit within a 35 cm x 35 cm x 35 cm box
• Weight: Must weigh less than 2.0 kg
• Power source: Must be self-contained in the device
• Mobility: Must be fully autonomous
• Design: Must be students’ own design, outside of motor components
• Cost: Must cost less than $100

Materials: Student engineers used a variety of materials including 3D printed filament, balsa wood, CDs, modeling clay, threaded metal rods, and various kinds of wheels and axles. Designs also incorporated electronics or a motor and power box within the body of the robot, and a parachute to reduce the descent speed.

Teams: Engineering students comprised 18 teams including The Argonauts, Imperfectly Designed, Robo Legs, Robo Rangers, Sisters in Science, Innovation Nation, Safety Hazards, Blue Moon, and Isaac Newton’s Dog Diamond.

Throughout the morning, all 18 teams presented their designs and then climbed the stairs to test their projects in the drop tower. After testing their autonomous vehicle, students examined what worked, what didn’t, and how they would improve it.

One group reflected: “Looking back on this project, we learned that we are all very early in our engineering careers and there is still a lot to learn. Designing and building a fully autonomous vehicle is difficult and an intricate process. Also, Open AI is a very useful tool…that can be used to create code for the purpose we need. If we were to do this project over again, we would have learned about our team members’ knowledge and backgrounds before assembling the team so we could create a team with more diverse skills and experience.”

Another group reported: “We utilized our engineering knowledge and available tools to optimize our machine’s efficiency. As we deepen our understanding of engineering coding, we recognize that programming could significantly improve our design.”

Early Pi Day Celebration

After all the tests were completed, the students celebrated Pi Day early—with free pizza followed by apple and cherry pies baked by students in Clark’s McClaskey Culinary Institute.

Professor Tina Barsotti said, “True engineering talent emerges from embracing failure, learning from it, and using it to build something stronger, smarter, and more resilient. We must celebrate our failures as they are our connection to innovation.”

Previous engineering competition stories

• Fall 2024
• Spring 2024
• Winter 2024

Photos: Clark College/Susan Parrish and Carly Rae Zent

Fall term’s Engineering Design Competition featured an edible building material: Pasta!

Teams constructed towers with dry pasta. They could use any type of pasta, and the towers ranged from round rigatoni beauties to tall, elegant lasagna sculptures. And there’s another catch: the towers had to have spaces for two small toy penguins to stand.

On the day of the competition, towers were tested for their ability to withstand force. They used an “Instron machine” to test the towers, which imposed increasing load on the towers. Some of the pasta towers burst with the force, making for an exciting minor pasta explosion.

The goal of the pasta towers was to reach a minimum of 20 Newtons of force, but many towers achieved taking hundreds of Newtons of force and some even hit over 2700.

Carol Hsu, an engineering professor who led the project, said “Watching the towers get crushed is always exciting, especially when it is catastrophic! In this competition, the students were challenged to design towers capable of withstanding a specified range of loads. Every team rose to the challenge with their pasta towers. Their success was largely due to prototype testing. Great job!”

Tina Barsotti, another engineering professor, explained that the project was devised by the students themselves. “Really what we’re teaching is the engineering design process.”

Every term, Professors Tina Barsotti and Carol Hsu pose a real-life problem to their engineering students and instruct them to design and build an object that solves the problem.

The last step of the project: During a three-hour competition, teams of students present their built project and then test it in front of their peers and judges from the community. Teams of engineering students competed in the challenge on June 6.

The topic of the 2023 spring competition, International Space Station Challenge, was proposed by Clark engineering alum Sarah Morgan. For the past decade, she has worked for Boeing in Houston ensuring engineering systems are working on the International Space Station.

International Space Station challenge 

Sarah contacted her former professors with an idea for the competition that was based on a project her team was working on.

Problem to solve: On the International Space Station, a pressure ventilation valve is damaged. To keep astronauts safe, students must design and build a temporary protective cover.

Sarah met with Clark engineering students via Zoom to answer their questions about the project.

“Our students were really excited about this project and got a chance to talk with an engineer with real life experience with the International Space Station,” said Professor Hsu. “Students also gain invaluable experience working with teams to solve problems.”

The Challenge

Sarah presented the challenge to the engineering students: “On the International Space Station (ISS), keeping a module pressurized is very important, but it’s also important to keep the pressure inside the station from getting too high. With this need to balance pressure in a specific range, there are ventilation lines/valves that go from the inside of the Space Station to the outside and ‘pop off’ at certain pressures.”

• The immediate problem: “One such line/valve has been damaged and an exposed portion is in an area that puts it at risk of being kicked by crew. If kicked, the vent line could become a hole from the inside of the pressurized module to the vacuum of space.”
• Problem statement: How might we design a temporary ventilation valve cover that can be assembled and disassembled and be able to withstand a 12-pound kick force?
• Working toward a permanent solution: A design team is working on a permanent solution to protect the exposed portion of this line. However, the design project is expected to take several months to develop and build before it can be flown on a supply vehicle.
• Students create a proposed temporary solution: “In the meantime, to ensure the safety of the astronauts on the ISS, an immediate temporary protective cover is required.”

Design a Solution

Students chose their team names, which included Space Penguins, Drop Kick Dynamics, and the Three Astroneers, to name a few.

Teams got to work designing a proposed temporary solution. Students chose various materials to build their valve covers: cardboard, block foam, aluminum, and polylactic acid (PLA), a popular material used in desktop 3D printing. Designs ranged from a trampoline-inspired fabric cover to a 3D-printed dome.

At the competition, each team took a turn standing in front of their professors and peers to explain their solution. Then came the moment of truth—testing what they had built. Two engineering students conducted the test of striking the design with a long-handled metal sledgehammer set to impact at a certain degree. Which designs would fail? Which designs would remain intact and protect the valve?

Top Three Teams

Professor Hsu said, “Winning the engineering competition earns the team bragging rights!”

The top three teams, in no particular order:

Team: D-Something
Students: Zane Bohyer, Caelan Heimbuch, Todd Karlsen
Project: Padded Wrench Frame

Team: Aerospace and Friends
Students: Clark Hegewald, Tyler Lawrence, Jack McMahon, Osvaldo Monroy
Project: ViceGuardian ValveArmor

Team: Stariod Engineers
Students: David Bogdanov, David Albulov, Gregory Wanner
Project: Tin Can Cover

About Sarah Morgan

When Sarah was enrolled in the engineering program at Clark College, she was president of N.E.R.D. Girls (Not Even Remotely Dorky) and was involved in the Engineering Club. After she earned an Associate of Science, Engineering transfer degree at Clark in 2011, she earned a Bachelor of Science in mechanical engineering at WSU Vancouver in 2013.

Immediately after Sarah graduated, she was hired by Boeing in Houston as a structural analysis engineer on the International Space Station’s structural integrity team. She has worked at Boeing for a decade. Since 2021, she has been the ISS mission evaluation room manager, leading and integrating engineering systems for operational success.

Read a story about Sarah Morgan in WSU’s Crimson and Grey Magazine here

Photos: Clark College/Susan Parrish

Engineering and Computer Science students preparing to graduate presented their projects in an expo in the STEM Collaboratorium on June 6.  

Engineering Professor Izad Khormaee explained that at the beginning of the academic year, students were assigned a task: to build and design a project that solves a real-world problem. Students proposed their project and designed it in Fall term, built it in Winter term, and improved on it in Spring term.   

Brandon Eastman (above) designed and built an electric-powered robot for use in production line automation. His project combines mechanical engineering, electrical engineering, and computer science. 

“It’s very simple,” Brandon said. “It is three motors equaling three degrees of freedom. Each motor is a wheel.”  

Brandon is earning his associate degree in electrical engineering and transferring to WSU Vancouver to pursue a bachelor’s degree in electrical engineering.  

Mellanie Martin (above) displayed the bioinformatics program she created that applies computer science principles to biological data.  

“This program takes a DNA strand and transcribes it to RNA,” she said. “Bioinformatics is a growing field. We have so much biological data, but we don’t know what to do with it.”  

Mellanie is transferring to WSU Vancouver to earn a bachelor’s degree in computer science.  

Linnea Castro (above) a mother of three children, enrolled at Clark in her late 30s to pursue a career in computer science. She is transferring to WSU Vancouver to pursue her bachelor’s degree. She created a homework timer to encourage kids to focus for 25 minutes. 

“It’s fun to do a project that’s manifested around something you want to learn,” Linnea said.    

Outside on the terrace, Carlos Aragón (top of page) demonstrated his renewable energy project, Ram Power Energy, a wave-powered generator that transforms hydraulic energy into electrical energy. He hopes to use this technology to harvest the energy of the ocean waves to produce electricity and to extract hydrogen.  

Carlos is earning his associates in electrical engineering and is transferring to WSU Vancouver, where he plans to earn his bachelor’s degree while continuing to improve his project. Eventually, he believes this process could not only be used to generate energy but also to clean the oceans.   

“I’m excited to see how to use it,” he said. “I hope to inspire more students at Clark to research new sustainable and clean energy sources.” 

Photos: Clark College/Susan Parrish