Kacen Green works on his mountain of polymer during the Brookhaven Elementary School STEM camp Tuesday morning. (Hunter Cloud | The Daily Leader)

Jaiyona Johns said she was drawing out a castle Tuesday morning but was having some trouble getting it to look right. (Hunter Cloud | The Daily Leader)

Peyton Parker said he started off drawing a cloud but it had kind of morphed into a spiderweb of stringy black polymer. (Hunter Cloud | The Daily Leader)

Peyton Parker begins drawing a black cloud Tuesday. The polymer coming out of the 3D printing is a Acrylonitrile Butadiene Styrene Polymer Filament. (Hunter Cloud | The Daily Leader)

Upcoming Senior Eli Martin helps kids with their 3D doodling pens Tuesday. He and Meritt Wolfe are volunteering with the STEM camp. (Hunter Cloud | The Daily Leader

Kacen Green’s mountain had a red and white base before he added a gray exterior. (Hunter Cloud | The Daily Leader)

Cadence Dickey and Kamyrius Stewart take a break from their 3D printing. (Hunter Cloud | The Daily Leader)

Leah Ann Peavey, a Polymer Science Teacher from the Brookhaven Technology Center, aids students with their 3D drawings. (Hunter Cloud | The Daily Leader)

Co-Lin Science Instructor Reed Freeman explains to Journey Rushing why the 3D printer does a better job than the pens do. Journey laughs after making a joke about Megamind. (Hunter Cloud | The Daily Leader)