Build a circular ramp
A circular ramp is like a screw with sidewalls that can keep a marble from falling off of it. Show off a marble as it goes down your spiral!
Mechanical Engineering
Step 1
A circular ramp is like a screw with sidewalls that can keep a marble from falling off of it. Show off a marble as it goes down your spiral!
Final steps
You're almost there! Complete all the steps, bring your creation to life, post it, and conquer the challenge!
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