Build a real robotic arm — and understand exactly why it works.
The Hydraulic Arm Bundle pairs our engineering kit with a fully self-guided online class. Your student builds a working water-powered arm from scratch, guided by clear step-by-step instructions, then learns the science behind hydraulics, mechanical advantage, and the real-world engineering this skill connects to.
What's included:
Hydraulic Arm Engineering Kit — syringes, tubing, craft sticks, and all components
Self-Guided Online Class — step-by-step build guide with science reveal
Student Workbook — engineering journal and challenge cards
90-day access — revisit any step, anytime
The science: Fluid mechanics, hydraulic pressure, mechanical advantage — the same principles used in construction equipment and medical devices.
Best for: Grades 3–8 | Ages 8–14 | Aspiring engineers and builders
Kit ships within 2–3 business days. Class access delivered by email within 24 hours.