micro:bit DIY projects with 3D-printed parts and MakeCode programming
Every JellySTEM kit includes Tinkercad 3D models, 3D-printing instructions, and step-by-step guides that teach students to create their own MakeCode programs and even rebuild the project themselves.
Students get a JellySTEM project as a DIY kit based on the micro:bit.
They assemble it step by step, then write the MakeCode program that controls what they built.
Who is JellySTEM for?
JellySTEM supports STEM education in primary and secondary schools for students aged 10–18.
JellySTEM is ideal for summer camps and short-term programs.
JellySTEM also works at home — as a fun way to build things together as a family.
Current Projects
JellyBOX — where it all started
JellyBOX is the “father” of JellySTEM projects. Originally developed over 10 years ago, it is now in its 4th generation.
JellyBOX introduced core principles that still define JellySTEM today:
transparent design — students can see how everything works,
simple construction — cable ties instead of screws whenever possible,
hands-on building — suitable for students from 10 years old,
JellyBOX has a long classroom history and is still proudly produced in the USA.
Learn more about JellyBOX
BottleBoat & Floor Racers — the first
JellySTEM project
BottleBoat and Floor Racers are the first official JellySTEM project. Students build simple but powerful vehicles that move on water or on the floor, and learn how design and code affect real motion.
What students build
Propeller-powered bottle boats for water
Floor racers powered by a propeller or motors for indoor driving
Built around micro:bit only, programmed in MakeCode
Tinkercad-designed parts with editable source models
Learn more about BottleBoat and Floor Racers