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DIY Fuel Cell Car Assembly Guide

Apr 6, 2025

DIY Fuel Cell Car Assembly Guide

Overview

  • Steps to construct a DIY fuel cell car including parts setup, assembly of components, and operation.
  • Focus on assembling the chassis, motor, and fuel cell.

Parts and Initial Setup

  • Separate Parts: Lay out DIY fuel cell car parts and chassis parts separately.

Front Axle and Wheel Assembly

  1. Front Axle: Insert into front wheel supporter.
  2. Bumping Post and Washer: Add to each end of the axle.
  3. Wheels Installation: Attach wheels to each side of the axle (front and rear wheels are identical).
  4. Secure Axle:
    • Insert a small screw through the front wheel supporter and chassis.
    • Add a metal profiled washer and small nut, tighten with screwdriver and nut driver.

Motor Installation

  • Wheel Attachment: Install wheels on each side of the motor axle.
  • Motor Mounting:
    • Use two long screws to secure the motor onto the chassis.
    • Secure with a small nut, tighten snugly.

Fuel Cell Installation

  • Inspect Fuel Cell: Ensure two large screws are at the bottom; install if missing.
  • Install Holder: Attach the fuel cell holder to the fuel cell bottom using a big nut.
  • Attach to Chassis: Use any of the nine center holes with small screws, flat metal washers, and nuts. Tighten slightly.

Tubing and Water Preparation

  • Syringe Choice: Select between 5ml or 20ml syringe.
  • Cut Tubing:
    • 2 pieces at 3 cm each.
    • 2 pieces at 12 cm each.
  • Connect Tubing:
    • 12 cm pieces to syringe.
    • 3 cm pieces to pressure relief valve.

Filling and Connecting the Fuel Cell

  • Water Filling:
    • Fill syringe one third with distilled water.
    • Install filled syringe to lower oxygen side of fuel cell.
  • Nozzle Covers: Remove from fuel cell.
  • Pressure Relief Valve: Install on bottom of both nozzles.
  • Attach Syringes: Connect both syringes to top valves, ensure they are closed.

Electrical Setup

  • Wire Connections:
    • Connect red and black wire sets to the fuel cell.
    • Install two AA batteries into battery pack (batteries not included).
    • Clamp battery wires to wire sets and turn on battery pack to begin electrolysis.

Final Adjustments and Operation

  • Syringe Operation: Assist syringes to start, pull slightly if needed.
  • Battery Pack: Turn off when hydrogen syringe is full, set aside.
  • Motor Connection: Attach wire set from fuel cell to motor; reverse connections if car is in reverse.
  • Alternative Controls:
    • Use pins and clamps as alternative switches or pressure valves.

Conclusion

  • Car is ready for racing once assembly and connections are complete.

Note: Ensure all connections are secure and components are properly aligned for optimal performance.