Hands-on DIY STEM Kits for Curious Kids
Move beyond plastic toys and let your child build working machines from scratch. These kits use real, child-safe tools and 3D-printed parts to turn your living room into a maker space.
Every great tinkerer needs a great toolkit. I've put together this starter box with the essentials: a glue gun, safety glasses, a reversible screwdriver, wire strippers, and even a battery charger, so the making and remaking never has to stop.
This is everything that comes in the Wind-Up Car kit. You can see all the 3D printed parts like the chassis, gears, and wheels, plus the springs and decals to make it your own. I designed it so every piece has a purpose in teaching mechanical principles.
Here's a look at all the components for our Da Vinci-inspired Catapult. From the frame and trigger to the ratchet and arm, each part is designed to fit together to teach the physics of tension and force in a fun, hands-on way.
The Cycloid Drawing Machine kit comes with everything you see here. You get the base, gears, marker, and all the screws and clips needed to assemble a machine that creates incredible geometric art, all powered by hand.
This is the complete parts list for the Disc Launcher kit. I've included the 3D-printed body, crank, and magazine, along with the rubber bands and discs. It's a simple assembly that teaches the basics of potential and kinetic energy.
Here's a step-by-step guide showing how to assemble the Catapult kit. I wanted to show how each part, from the frame and spring to the trigger and arm, comes together to create a working model that demonstrates force and tension.
This video walks you through assembling the Disc Launcher. You can see how the crank, firing pin, and rubber band work together. It's a simple mechanism, but it's a great way to learn about stored energy.
Watch how our 3D Printed Wind-Up Car comes together. This kit is a fantastic introduction to gear ratios and stored energy, as kids build a drag racer that they can power themselves.
This is our Cycloid Drawing Machine in action. By assembling the gears and linkages, kids create a device that turns simple motion into complex, beautiful patterns, offering a hands-on lesson in geometry and mechanics.
The Catapult kit is one of my favorites. It's not just about launching things; it's about understanding how historical inventions worked and seeing the principles of physics, like levers and tension, in action.
About Our Awesome DIY Kits
These are not pre-assembled toys you unbox and forget. Every kit requires assembly, wire stripping, and understanding how components like motors and gears actually function. You are giving your child a screwdriver, a glue gun, and a set of instructions that respect their intelligence, letting them grasp concepts like potential energy or circuit flow by physically building the mechanism themselves.
Building Skills, Not Just Toys
Most educational toys provide a 'push-button' experience. Our DIY kits take a different route. When a child opens a Tinkernauts box, they find components—motors, chassis, gears, and circuitry—that need to be connected. This is where the learning happens. Whether it is a wind-up car that demonstrates gear ratios or a Bluetooth speaker that requires basic circuit connection, the goal is for your child to understand the 'how' behind the 'what.'
Why Real Tools Matter
We don't use plastic mock-ups. We provide real, child-safe versions of adult tools, including glue guns, wire strippers, and screwdrivers. Learning to handle these tools safely builds immense confidence. A child who can confidently strip a wire or tighten a screw is a child who knows they are capable of fixing things in the real world.
The Science of Our Kits
Every project is 3D-printed using non-toxic, biodegradable plastic, ensuring that your child’s creative process remains eco-conscious. We cover a variety of domains:
- Mechanical Principles: Kits like our catapult or drawing machine teach tension, force, and geometry.
- Electronics & Circuitry: Projects involving LEDs, motors, and amplifiers introduce the basics of electricity.
- Problem Solving: Because our kits involve actual assembly, 'mistakes' are expected. If a gear slips or a connection is loose, your child learns to troubleshoot, take it apart, and try again. This 'messy middle' is exactly where the deepest learning takes place.
Tinkernauts
I am Rohan, and I believe kids learn best when they get their hands dirty. At Tinkernauts, we do not do plastic mock-ups. We provide the real tools and components so your child can build, break, and fix things on their own terms.
Looking for a specific project or skill?
Type the type of build or skill level you are looking for.
More from Tinkering Workshops & Camps by Tinkernauts