photo: finished build#01
Cardboard Ramp Rally
Raise the ramp, roll the marble, mark where it stops. Does higher always mean farther?
~20 minBox, tape, marble
Free build guidesAges 6–14
Where their questions become experiments.
Join the SparkRig waitlist and get free, step-by-step guides for machines your child can build at home, using cardboard, tape and things already in your recycling bin.
What’s in your inbox
Real machines. Kitchen-table materials.
Each guide is a short build with clear pictures, a question to predict before testing, and ideas for making it your own. No kits to buy.
photo: finished build#02
Balance the Beast
Build a seesaw from a ruler and a spool, then balance a heavy load against a light one.
~20 minRuler, spool, coins
photo: finished build#03
Marble Lift
Use a string, a cup and a paper-towel tube to carry marbles up, then improve it.
~30 minTubes, string, cup
How it works
1
Join the list
Tell us who you are and your kids’ ages. It takes ten seconds.
2
Build together
Every couple of weeks, a new guide arrives. Predict what will happen, build it, test it, change it.
3
Get in first
Waitlist families get early access to Tinkerworks before it opens to everyone.
Coming soon · Tinkerworks
Then take it on screen: build, press play, try again.
Tinkerworks is our first workshop: a space where kids place ramps, wheels, beams and loads, then watch what happens. They pause, change one thing, and see why it mattered. It runs in your web browser, and the first lesson is free.
Teacher? Sign up as one and we’ll send classroom notes along with each guide.
Tinkerworks screenshot