3D Exercise 61

Exercise 61

In this CAD tutorial we'll use the features: 

1. Extrude

Definition: The primary tool for creating 3D geometry from a 2D sketch. How it works: You select a closed sketch profile and pull it into 3D space. You can add material (Join), remove material (Cut), or create a New Body. Best for: Creating the main body of almost any mechanical part, like a bracket or a mounting plate.

2. Rib

Definition: A specialized tool to create thin support walls (webs) or stiffeners. How it works:

• Efficiency: Instead of drawing a closed triangle and extruding it, you simply draw a single open line connecting two walls.

• Automation: The Rib tool automatically extends that line to the solid walls and fills the gap with material. Best for: Adding structural strength to L-brackets or plastic parts without adding unnecessary weight.

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3. Plane Along Path (Construction)

Definition: Creates a construction plane that is perpendicular to a selected edge (path) at a specific point. How it works: You select a line or a curved edge. Then, you drag an arrow along that line.

• Proportional: You can set it to "0.5" to be exactly in the middle, or "0.9" to be near the end.

• Physical: You can set a specific distance (e.g., "50mm from the start"). Best for: creating a sketch plane for a specific feature (like a screw hole or a boss) located on a curved arm where no flat face exists.

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4. Fillet

Definition: Rounds the sharp edges of a solid body. How it works: Replaces a sharp corner with a smooth arc. Best for: Reducing stress concentrations. In the context of a "Rib," you almost always add a fillet where the rib meets the wall to prevent cracking.

5. Chamfer

Definition: Creates a flat, angled bevel on an edge. How it works: Cuts a straight slope (usually 45°) onto an edge. Best for: The entry points of holes (countersinks) or the outer edges of a base plate to remove sharpness.

All dimensions are in mm/g/s/ISO  

#Fusion360 #Solidworks #Inventor #Autocad #FreeCAD

3D Sketch

Sketch 61

Exercise 61 - 3D practice drawing for all CAD software ( AutoCAD, SolidWorks, 3DS Max, Autodesk Inventor, Fusion 360, CATIA, Creo Parametric, SolidEdge etc.)

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Tutorial In Autodesk Fusion: https://youtu.be/qUzQ0epyM34