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

Advanced Rounds

Intent edges

When selecting edge references for a round feature, either toggle (momentary RMB) or RMB > Pick from list and you will find Intent Edges – edges which define the design intent.  This edge chain or collection of edges is identified by the surrounding features and not by the edge identity.

In the example above, three Sets were created containing a single Intent Edge reference in each – Intent Edge in Set 1 includes the four vertical edges, Set 2 is the top loop and Set 3 is the bottom loop.

Above left is the initial result.  If the driving sketch is altered to produce the section as above right, then the design intent captured in the Intent Edge references is recognised and the round edge chains are redefined accordingly.  If you had chosen individual edges then the rounds would have failed when the section was changed.

Round sets

If you have multiple edges or chains which have a common size fillet then manage those edges under one feature.  Hold the Ctrl key to 'collect' the edges you want to fillet.  Use the RMB menus on the drag handles (as above) for different options.  Make sure you experiment with the dashboard options.

If you select a subsequent edge without holding Ctrl then a new Set of edges will be created.  Each edge Set has unique parameters. Manage Sets through Dashboard>Sets

Transitions/stops

At some point, fillet edges will meet each other in the model, the fillet surfaces will have to be ‘blended’ together – this is the round transition.  Pick on the Transition icon in the dashboard, select a highlighted transition on the model and, depending on the geometry, you may be given different options for the shape of the transition.

Full round

If you create a fillet on two parallel surface edges to such a size that it consumes the parent surface between these two edges it is referred to as a Full Round.  Select the two parallel edges > pick the Full Round option.