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Utility Archive · 2026.02.13
[Lisp #41] ACL : Auto Centerline & Circles

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1/ Command :

  • ACL



2/ Description :

This tool allows you to automatically draw a base set of cross-hair centerlines and then rapidly add multiple concentric circles (either visible outlines or circular centerlines) around a single center point.

  • Auto-Sizing : The initial centerlines are automatically drawn slightly larger than the largest diameter you specify.

  • Layer Control via Prefix : You can easily switch between drawing a normal circle (Layer 0) and a circular centerline (Layer Center) by adding a prefix to your input


3/ How to Use:

  1. Type ACL in the command line and press Enter.

  2. Click the Center Point for the circles.

  3. Enter the Diameter for the main cross-hair centerlines (typically the size of your largest intended circle).

    • Example: Type 100 and press Enter. The cross-hairs are drawn to fit a 100mm circle.

  4. Add Concentric Circles:

    • For a Normal Circle (Layer 0): Type the diameter starting with 0.

      • Example: 050 -> Draws a 50mm circle on Layer 0.

      • Example: 085 -> Draws an 85mm circle on Layer 0.

    • For a Centerline Circle (Layer Center): Type C followed by the diameter.

      • Example: C70 -> Draws a 70mm circle on the CENTER layer.

      • Example: C100 -> Draws a 100mm circle on the CENTER layer.

  5. Press ESC to finish.




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