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Advanced Knuckle Joint Design in Fusion 360

Sep 21, 2024

Autodesk Fusion 360 Advanced Tutorial - Knuckle Joint Design

Introduction

  • Welcome to the third exercise of the Autodesk Fusion 360 Advanced Tutorial.
  • Objective: Design a knuckle joint consisting of three components.
  • Overview of dimensions, tools, and commands used in the tutorial.

Getting Started

  • Create a new design:
    • Go to File > New Design.
    • Change unit to millimeter under Document Settings.
    • Create a new component named Form and keep it active.

Sketching the Base Shape

  1. Create a New Sketch:
    • Draw a center point rectangle from the origin (95 mm x 202.5 mm).
    • Delete unnecessary construction lines.
    • Draw a center diameter circle (45 mm) and another circle (95 mm).
    • Set the distance between the center and the line to 75.5 mm.
    • Draw a two-point rectangle (width 45 mm).
    • Draw another center point rectangle (width 42 mm).
    • Trim unnecessary portions.
  2. Finish Sketch and Extrude:
    • Select the two profiles and extrude symmetrically to 40 mm (total distance 80 mm).

Creating Additional Features

  • Create a new sketch on the face:
    • Draw a center diameter circle (30 mm) and another circle (75 mm).
    • Make them tangent and add a two-point rectangle (length 42 mm).
    • Finish sketch and extrude these shapes inward.
  • Fillet Edges:
    • Apply fillets (10 mm and 40 mm) to the selected edges.
  • Create new sketches on the face for corner circles and extrude inward (45 mm).
  • Fillet curves (5 mm).

Finalizing the Form Component

  • Create a cylinder on the face and fillet (40 mm).
  • Turn on visibility of the fork and create a new sketch for additional features (rectangular pattern with 2 items).
  • Repeat sketching and extruding steps as necessary.
  • Complete the eye rod component with filleting and a cylinder addition.

Creating the Pin Component

  • New component: Pin.
  • Create a sketch with center diameter circles (30 mm, 45 mm).
  • Extrude inward (130 mm) and create a hole (7 mm diameter).

Creating the Washer Component

  • New component: Washer.
  • Create sketch and extrude (12 mm - 15 mm).

Creating Components from Bodies

  • New sketch for circular profiles.
  • Move and loft profiles to create a component named Tap Pin.

Assembling Components

  • Ground the fork component to prevent movement.
  • Use joint commands to connect components:
    • Revolve joint for I dot and form.
    • Set joint limits (120 degrees).
    • Slider joint for pin and fork.
    • Adjust joint limits for movement.
    • Joint for washer and core with limits.
    • Last joint for taper pin with adjustable limits.

Final Touches

  • All components are joined together.
  • Apply colors using Appearance settings (yellow, black, and white).

Conclusion

  • The knuckle joint is complete.
  • Encouragement to like and subscribe to the channel.
  • Reminder to continue designing.