A STEM kids toy aimed at teaching the fundamentals of TIG Welding through hands on simulation with crayon wax.
Spring 2025
The Premise
This group project for the University of Minnesota Engineering Ambassadors Program aimed to make a STEM kit for kids. The final product teaches kids of all ages the fundamentals of welding in a fun and engaging way.
Deep Description
This was a group based project sponsored by the University of Minnesota’s Mechanical Engineering Ambassadors Program, a branch of the broader Engineering Ambassadors Network. This association conducts many engineering outreach programs to help kids in under privileged communities access fun engineering education.

The ME Ambassadors had tasked our class with creating STEM kits that they would use for their summer outreach programs. These STEM kits were to be intended to teach kids important lessons and skills that may be able to help them create their own hydroponics system, though it was also encouraged to try other lessons as well. Hydroponics being the growth of plants without the use of soil, instead their roots sit in nutrient dense water that provides the plant everything it needs to grow.
Unless otherwise specified, all below work is mine.
Early Ideation
Many solo and group ideation sessions were held to generate as many ideas as possible.

We worked directly with our sponsors and stakeholders to narrow down and refine the concept directions.
*Post-it sketches were a group effort
How might we create a stem kit for middle schoolers that teaches the fundamentals of tig welding?
Early Prototypes
Utilizing the heating element from a hot glue gun and a small air-pump, essentially a custom heat gun was created that would simulate the welding process seen in TIG welding. The form holds very true to a real TIG welder, for extra simulation immersion.
How it works
Usability Testing
We were able to get a functional prototype in the hands of kids, watching and listening to their direct feedback. This also allowed for necessary prototype run-time, observing how the housing reacted to the internal heating element.
Testing Takeaways
Reflection
  • Users were confused about products purpose or use
  • Welder took too long to melt crayon wax
  • Housing began to deform over time due to heat
Moving Forward
  • Curate a user experience that would keep kids interested longer and eliminate confusion
  • Conduct testing with different heat levels and pump strength to improve melt time
  • Modify the housing to improve heat dissipation and strength
Concept Iteration
Modifications were made to the welder housing to allow for more airflow around and away from the heating element, meant to mitigate the tendency of warping. Plus, the addition of a kickstand allows the user to set the welder down when not in use.
Other work