STEM Inventor's Challenge

Our Team

Pine Crest School

Team Members: Pia, Lucas, and Savanna

Penny Boat Challenge

As a team, we each created a Penny Boat in Tinkercad to test. Here are some pictures of our designs and of us testing our boats. So many pennies!

Pia's Boat design

Lucas's Boat Design

Savanna's Boat Design

Pia's Boat

Held: 104 pennies

Lucas's Boat

Held: 87 pennies

Savanna's Boat

Held: 67 pennies

IMG_0916 (1).mov

We figured out what part of each boat worked and we changed our designs to be the best boat we could make. The boat design we decided on was Pia's that held 104 pennies.

Please click to see the video of the boat holding all 104 pennies.

Final Invention- The Mask Up

For the Final Invention Challenge, we came up with the idea to make a 3D printed part to help stop face masks from sliding down and exposing our nose. We think this is a good idea because our teachers have to remind many students to push their mask back over their nose and we wanted to help solve that problem.

After asking our classmates, we figured out that the most common reasons a mask slips down is because of 2 main things: the material being slippery or the lack of a metal nose piece, which most fabric masks do not have. As a team, we brainstormed many ideas of how to fix the problem and we thought about when people wear glasses that they stay on because of the arms that wrap around a person's ears. From there we explored what if it wasn't an elastic band on the sides of a mask but 3D printed arms that could clip onto different masks so that a mask would never slide down again. That is when we put our idea into motion and came up with our design.

We started off with some research. It was difficult to figure out the specific measurements from what we found online so instead, we measured a few different masks to find an average size and we also measured Savanna's glasses to see how long the arms were. The trickiest part was getting the curve of the arm just right. We had to make many adjustments to our design before we came up with one that works. We are proud of our idea and excited that it works!

Design Brainstorming

We measured to see the length of the arms and where it would fit on the mask.

Tinkercad Design

We designed a few times on Tinkercad until we found a good curve shape to fit around a person's ears comfortably.

Working Prototype

We trimmed the length of the arms to fit better and we decided to attach them to the mask on the side without the metal piece to show how it works without that piece.

Testing the Product

When we tested the product, we did not use the ear straps. We only used the arms we 3D printed for this challenge.