CATIA | How to Create an Extrusion Not Normal to Sketch Plane (2025)

Sep 19, 2025

✅ For More Details about How to Create an Extrusion Not Normal to Sketch Plane, Visit the Link Below https://tinyurl.com/2s4j9mce ------------------------------------- Learning “How to Create an Extrusion Not Normal to Sketch Plane” in CATIA is an essential skill for anyone aiming to become proficient in advanced 3D modeling and mechanical design. While creating standard extrusions perpendicular (normal) to the sketch plane is fundamental, real-world designs often require more complex geometry that cannot be achieved using only perpendicular extrusions. Mastering this specific technique expands your design capabilities and makes you more versatile as a designer or engineer. Here are several key reasons why you need to learn it: 1. Designing Complex and Realistic Parts Many mechanical components in real-world products are not aligned with standard axes or perpendicular planes. Think of angled brackets, curved supports, turbine blades, or custom housings—these often require extrusions along directions that are tilted or rotated relative to the sketch plane. If you can only extrude normally, you will be limited to very basic shapes. Learning how to extrude in any direction lets you design complex and realistic parts that meet actual engineering requirements. 2. Improving Design Flexibility and Creativity Being able to extrude not normal to the sketch plane gives you the freedom to approach problems from multiple angles—literally and creatively. Instead of redrawing sketches on multiple offset planes, you can reuse one sketch and control the extrusion direction using reference geometry like lines, edges, or custom vectors. This flexibility speeds up your design process and lets you experiment with more innovative shapes without being constrained by default modeling restrictions. 3. Saving Time and Reducing Errors If you don’t know this technique, you might try to manually create new angled planes, project sketches onto them, or rotate bodies afterward. These workarounds are time-consuming and prone to alignment errors. Directly extruding along a chosen direction is faster, cleaner, and more accurate. It reduces the number of operations in your model tree, which makes the part easier to update and modify later. This is especially valuable in collaborative projects where model clarity and simplicity are crucial. 4. Essential for Advanced Assemblies