3D Exercise 59
- Breno Cruz
- há 2 dias
- 2 min de leitura
In this CAD tutorial we'll use the features:
1. Extrude
Definition: Adds depth to a 2D sketch profile to create a 3D solid body. How it works: You select a closed sketch and pull it. Best for: Creating the base block or "master shape" of your plastic part.
2. Draft
Definition: Angles the vertical faces of a part so they are not perfectly 90 degrees. How it works: You select a "Neutral Plane" (usually the bottom of the part) and the faces you want to tilt. You give it a small angle (e.g., 2°). Why use it? If you are designing a part to be made in a mold (plastic injection), you must have a draft angle. If the walls are perfectly straight, the part will get stuck in the metal mold due to friction/suction. The Draft allows it to pop out easily.
3. Plane Along Path (Construction)
Definition: Creates a sketch plane that travels along a curved line or edge. How it works: You select a path (like a spline or a curved edge) and a distance (0 to 1). Fusion creates a plane that is perpendicular or tangent to that specific point on the curve. Best for:
Creating a sketch profile for a Sweep (essential usage).
Creating a cross-section sketch at a specific point on a curved handle to check thickness.
4. Shell
Definition: Removes the interior material of a solid body to create thin walls. How it works: You select the face you want to be open (or select nothing for a hollow closed tank) and specify the thickness. Best for: Turning your solid "Drafted" block into a realistic thin-walled plastic casing.
5. Rib
Definition: Creates thin wall supports (webs) from a single open sketch line. How it works: You sketch a line "floating" inside your hollow shell. The Rib tool extends that line down to the floor and sideways to the walls to create a solid web. Best for: Strengthening the plastic shell so it doesn't crush when you squeeze it.
6. Fillet
Definition: Rounds off sharp edges. How it works: Applied after the Draft and Shell. Best for:
Plastic Flow: Liquid plastic flows better around rounded corners in a mold.
Stress: Sharp corners in plastic parts are weak points; fillets prevent cracking.
7. Emboss
Definition: Raises or recesses a logo or text onto a curved surface. How it works: It takes a flat sketch and "wraps" it onto the contour of the face before extruding it. Best for: Adding branding, logos, or grip textures to the outside of the plastic part.
All dimensions are in mm/g/s/ISO
3D Sketch
Exercise 59 - 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/oKOPpXPCph4
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