Routing - Routing Corners

Now reading version 18.1. For the latest, read: Routing - Routing Corners for version 21

Rule category: Routing

Rule classification: Unary


This rule specifies the corner style to be used during autorouting.

All design rules are created and managed within the PCB Rules and Constraints Editor dialog. For a high-level view of working with the design rules system, see Defining, Scoping & Managing PCB Design Rules.


Default constraints for the Routing Corners rule.Default constraints for the Routing Corners rule.

  • Style - specifies which routing corner style to use. The following three styles are available:
    • 90 Degrees.
    • 45 Degrees.
    • Rounded.
  • Setback - these two fields allow you to define a minimum and maximum value for the setback, when using the 45 Degrees and Rounded corner styles. The setback is the distance from the 'true' corner location (that which would exist if using the 90 Degrees style) to the point at which the Autorouter should begin its chamfering or rounding, in effect controlling miter size or corner radius.

How Duplicate Rule Contentions are Resolved

All rules are resolved by the priority setting. The system goes through the rules from highest to lowest priority and picks the first one whose scope expression matches the object(s) being checked.

Rule Application

This rule is intended for use by third party Autorouters that implement 45° routing as a post process. It is not followed by the Situs Autorouter, which implements 45° routing as a native process.

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