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• level crossing

  ron.chemla • 05/27/2025 at 12:19 • 0 comments

  Step 1: Project Definition

  • Theme selection: creation of an automated level crossing.

  • Objective definition: raising and lowering barriers using servomotors controlled by an Arduino.

  Step 2: Mechanical Design

  • Design of mechanical parts (barriers, racks, Arduino box, support).

  • 3D modeling of gears and racks.

  • Preparation of files for 3D printing and laser cutting.

  Step 3: Fabrication

  • Laser cutting of wooden parts: base, box, supports.

  • 3D printing of gears and rack mechanisms.

  • Sanding of the printed parts to ensure the rack slides smoothly in its base.

  Step 4: Assembly

  • Mounting the servomotors to the base.

  • Assembling the rack and pinion mechanisms.

  • Assembling the Arduino box using interlocking parts (without glue).

  • Inserting the Arduino into the wooden box.

  Step 5: Wiring

  • Connecting the servomotors to the Arduino using a breadboard and jumper wires.

  • Neatly routing the cables through a hole in the box.

  Step 6: Programming

  • Writing a simple Arduino code to control the servos (from 0° to 180°).

  • Manual simulation of a train detection: opening/closing the barriers via code.

  Step 7: Testing and Adjustments

  • Testing the sliding mechanism of the racks.

  • Adjusting the servo angles to achieve smooth movement.

  • Verifying the overall stability of the complete system.

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