Altium NEXUS Documentation


Created: June 11, 2016 | Updated: April 11, 2017
This documentation page references Altium NEXUS/NEXUS Client (part of the deployed NEXUS solution), which has been discontinued. All your PCB design, data management and collaboration needs can now be delivered by Altium Designer (with Altium Designer Enterprise Subscription) and a connected Altium 365 Workspace. Check out the FAQs page for more information.

Parent page: CAMtastic Commands

The following pre-packaged resource, derived from this base command, is available:

Applied Parameters: None


This command is used to assign reference designators to all parts that have been successfully created/grouped in the current design document.


This command is accessed from the CAMtastic Editor by choosing the Tools » Parts » Assign Ref Designators command from the main menus.


After launching the command, the cursor will change to a small square and you will be prompted to select a part. Simply position the cursor over the center of the cross in a grouped part, and click. The Enter Value dialog will appear, from where you can enter the reference designator you wish to assign to the part. After entering the designator required and clicking OK, the designator will appear at the center of the cross for the part.

Continue assigning reference designators to other parts in the design, or right-click, or press Esc, to exit.


  1. Reference designators may contain any alpha and/or numerical character. Underscores may be used, spaces and other characters may not. The designator must be lowercase only.
  2. Placing alpha-numeric designators will allow you to use auto-incrementing. For example, entering u1 for the first designator will cause designator u2 to be automatically available when placing the second designator, and so on. This can be of great benefit when assigning designators to parts of the same component.
  3. The reference designator information will be added to the parts list in the Export Part Centroids dialog (File » Export » Part Centroids).


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