Design & Tech CAD


Level 1 Modelling

Level 2 Modelling

Reference geometry
Variable Section Sweep
Layers & visibility
Adv. Rounds
Mathematical control
Advanced Patterns
Draft & Split plane Trim
Geometry from 2D graphics
Model analysis

Accuracy

Skeleton based surfacing:
Model Analysis
Section Curvature
Splines
Boundary Blend
Construction and manipulation
Trim, Merge & Solidify
3sided surfaces
Offset Surfaces

 

Level 3 Modelling

Assemblies

Engineering Drawings

CNC Machining

Simulation

Rendering

Others

 


Offset surface feature driven by sketch

The Offset function is another feature which has multiple uses depended on what geometry you pre-select and what options you choose in the dashboard.

Select the surface you want to offset.  If its the surface of a solid then select the solid then the surface on the solid.

Edit > Offset

The default option is to create an offset copy of the whole surface.  If you want to offset an area defined by a [planar] sketch then you need to select the Expand option in the dashboard

Through Options you can then select or define the sketch which controls the offset area.  Consider whether you want the side surfaces to be normal to the sketchplane or the surface.

Note:  You cannot use the text tool in sketcher for the offset sketch.  If you want to use standard fonts you will have to create the sketch using the text tool then create a second sketch which traces the edges of the original sketch.

 

Loughborough Design School© Sean Kerslake 2011