3D Exercise 80

Breno Cruz
31 de dez. de 2025
2 min de leitura

In this CAD tutorial we'll use the features:

1. Extrude (Solid)

Definition: The standard tool. It takes a closed sketch profile and fills the entire inside with material. How it works: You draw a square. You extrude it. You get a solid cube. Best for: Creating the main bulk or "stock" material of your part.

2. Thin Extrude

Definition: Creates a solid wall along the sketch line, rather than filling the inside. How it works:

The Difference: Instead of creating a solid block, it creates a hollow box or a wall instantly.
Efficiency: You don't need to use "Shell." You can just draw a single line (open profile) or a rectangle and check the "Thin" option in the Extrude menu. You then define the Wall Thickness (e.g., 2mm). Best for: Quickly making open containers, brackets, or stiffening ribs without drawing the inner and outer walls manually.

3. Extrude Surface (Surface Tab)

Definition: Creates a geometrical shape with zero thickness (an infinitely thin skin). How it works: You must switch to the Surface Tab (orange toolbar). When you extrude a line or circle, it creates a hollow "ghost" shape. It has no mass and is not a solid body. Best for:

Cutting Tools: You can create a curved surface to slice a solid body in half.
Complex Modeling: Building a complex outer shape patch-by-patch before "stitching" it into a solid.

4. Hole

Definition: A dedicated tool for creating standard drill holes. How it works: Unlike Extrude-Cut, this tool understands standard hardware sizes. You simply select a point and choose "M6 x 1mm Threaded." It automatically calculates the correct diameter for the drill bit and the counterbore for the screw head. Best for: Any hole that will accept a screw or bolt.

5. Fillet & Chamfer

Definition: Edge finishing tools.

Fillet: Rounds the edge (adds material to inside corners, removes from outside). Used for stress relief and ergonomics.
Chamfer: Cuts a flat angle. Used for easier assembly (guiding bolts into holes).

All dimensions are in mm/g/s/ISO

#Fusion360 #Solidworks #Inventor #Autocad #FreeCAD

3D Sketch

Exercise 80 - 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/p1Zf8Vm7bJo