A designer or CAD modeller will sooner or later come across the need for a ‘smooth’ surface – one that has no hard edges to achieve an organic and natural look. This is more the case when designing products for commercial application. SolidWorks has a powerful tool to create smooth surfaces known as the ‘filled surface’ command. Figure 1 shows the limitations of the boundary surface command – it fails to produce a smooth surface when the profile flexes in more than two directions.


Figure 1

The filled surface command works in a different way. To generate a smooth surface it uses the bounding area of a sketch or adjacent surfaces. It also allows you to instruct how each ‘bounding side’ should be treated. Figure 2 shows what can be achieved using this command.


Figure 2

There are three boundary ‘conditions’ you can set – contact, tangency and curvature. If you are using a 2D or 3D sketch, you can only select a contact condition since no surface or other faces are present for reference. If you have a surrounding set of surfaces, you can manipulate the filled surface result by select them and applying boundary conditions.


Figure 3

I hope you have learnt something powerful from this tutorial. Restoric Design has designers that are competent in the use of SolidWorks and other CAD software.

Related Articles

What is historic building information modelling?

Meta Description: Learn about the basics of historic building information modelling and how this technology can help with restoration projects. The preservation of historic buildings and structures is a complex and challenging endeavour. To ensure the long-term...

How to make mechanical shop drawings

Shop drawings are an essential part of the mechanical construction process. They offer an intricate design to follow that can be easily understood and executed using the right dimensions and functions, working almost like a language between two engineers to understand...

How to check fabrication drawings

Fabrication drawings are essential in the fabrication industry as they guide all structural construction processes. Accuracy in the drawings is therefore paramount. This article shows you how to check fabrication drawings to ensure they serve their intended purpose...