extrude

Boss/Base Extrude Feature

The Extrude feature is one of the most common features in SolidWorks. An Extrude is used to convert a 2D Sketch into a 3D object. In this tutorial I’ll show you how the Extrude feature works. Open a new part with model units set to millimeters Go to: File > New > Part  Create a [...]

The Extrude feature is one of the most common features in SolidWorks. An Extrude is used to convert a 2D Sketch into a 3D object. In this tutorial I’ll show you how the Extrude feature works.

Open a new part with model units set to millimeters

Go to: File > New > Part 

New Part1 Boss/Base Extrude Feature

Create a 2D sketch

Select the Top Plane in the feature tree (menu at the left side) and create a sketch by clicking on the 2D Sketch icon. 2d sketch1 Boss/Base Extrude Feature

The display changes so the Top plane faces you.

Boss Base Extrude Feature 001 Boss/Base Extrude Feature

Create a Center Rectangle

Go to Tools > Sketch Entities > Center Rectangle or click at the center rectangle icon Center Rectangle Boss/Base Extrude Feature

Create a sketch which starts at the Origin. Origin Boss/Base Extrude Feature

Change the dimensions of the rectangle into 100 and 150 mm by clicking at the dimension button dimension Boss/Base Extrude Feature

Boss Base Extrude Feature 002 Boss/Base Extrude Feature

Create an Extruded Boss/Base

Go to: Insert > Boss/Base > Extrude or click at the Extrude icon Boss Base Extrude Boss/Base Extrude Feature

The Boss-Extrude menu appears

Direction 1 is set to Blind. When you use the Blind feature you’ll get a solid extrude.

The yellow preview shows the extrusion of the rectangle.

Boss Base Extrude Feature 003 Boss/Base Extrude Feature

By clicking at the Reverse button Reverse Direction Boss/Base Extrude Feature you can change the direction of the extrude.

Click a few times at the Reverse button and notice the differences.

With Dimension 1 Boss/Base Extrude Feature  you can change the Depth of the extrude.

Change the Depth of the extrusion into 100 mm.

Boss Base Extrude Feature 004 Boss/Base Extrude Feature

Besides the Blind direction there are a few other Direction Options:

Trough All: Extrude a feature through all the other bodies in the model (this feature is only available when you’ve other bodies into your part)

Boss Base Extrude Feature 005 Boss/Base Extrude Feature

 

Up To Vertex: You can use this to extrude a feature to a specific point or edge of another shape.

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Up To Surface: Use this option if you want to extrude a shape until a specific surface

Boss Base Extrude Feature 007 Boss/Base Extrude Feature

Offset From Surface: With this option it’s possible to extrude a shape until a distance from another surface.

Boss Base Extrude Feature 008 Boss/Base Extrude Feature

Up to Body: You can use this to Extrude a feature to a specific body. This feature is only available when you’ve other bodies into your part. When you get the Rebuild Error:  “Unable to extrude up to selected body” you have to make sure that the next body is bigger as your extrude.

 Boss Base Extrude Feature 009 Boss/Base Extrude Feature

Mid Plane: Extrude a sketch to two equal directions.

 Boss Base Extrude Feature 010 Boss/Base Extrude Feature

Up To Next: Extrude the sketch up to the next body. When you get the Rebuild Error: “Unable to extrude up to selected body” you have to make sure that the next body is bigger as your extrude.

Boss Base Extrude Feature 011 Boss/Base Extrude Feature

Besides the different options for the direction of the extrude it’s also possible to immediately add a draft to the extrude.

Click at the Draft Draft Boss/Base Extrude Feature icon

Change the draft size into 5 degrees

With the Draft outward option it’s possible to change the direction of the draft.

Boss Base Extrude Feature 012 Boss/Base Extrude Feature

 

With the Direction 2 option you can add a second direction to the extrude.

You can also add a second draft to this direction as shown in the picture.

Change the Draft angle into 30 degrees.

Boss Base Extrude Feature 013 Boss/Base Extrude Feature

Beside the Direction 1 and Direction 2 options there’s also a Thin Feature option

With this feature you can create a Thin Extrude

You can use the  option to change the thickness of the extrusion edge

Change T1 T1 Boss/Base Extrude Featureto 10 mm as shown in the picture.

Boss Base Extrude Feature 014 Boss/Base Extrude Feature

When you check the Cap ends option you can close the top and bottom of the extrusion to get a hollow extrude (all within one single feature!)

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When you’ve multiple figures in one sketch you can use the Selected Contours Selected Contours Boss/Base Extrude Feature option to pick only the figures you want to extrude.

Click OK ok Boss/Base Extrude Feature  to apply your Extrude

Boss Base Extrude Feature 016 Boss/Base Extrude Feature

Well, that’s all for now. Hopefully you’ve learned something from my post about the Extrude feature.

Do you still have questions about it or want to add something? Feel free to leave a comment below.