Is ʼLineweightʼ display turned off by default on the screen in AutoCAD?

ByCADbrief Staff

Is ‘Lineweight’ Display Turned Off by Default on the Screen in AutoCAD?

Short Answer

Yes. In AutoCAD, lineweight display is typically turned off by default on screen, and the fastest professional way to check or change it is with the LWDISPLAY command. Most users toggle it from the status bar for drafting speed. Thin lines may still appear similar at some zoom levels.

What You Need to Know Before

Warning: Screen lineweight display only affects how objects look in the drawing area, not their plotted output. A common mistake is assuming lineweights are missing from the print when only the display toggle is off.

How to Turn Lineweight Display On or Off

  • Command: LWDISPLAY

  • Shortcut: LWDISPLAY

  • Quick Steps:

    1. On the Status Bar, click the Lineweight toggle near the bottom of the AutoCAD window.
    2. If it is hidden, click Customization on the status bar and enable Lineweight.
    3. Or type LWDISPLAY and enter ON or OFF at the command line.

Variables & Settings

  • System Variable: LWDISPLAY (Default: Off)

  • Expert Setting: This controls whether assigned lineweights are shown in model space and layout viewports on screen. Turning it on improves visual checking, but can make dense drawings feel slower or visually heavier.

Why it Fails

  • Cause 1 (Geometry): Very small or very similar lineweights may look almost identical on screen, especially when zoomed out.
  • Cause 2 (layers/Locks): Objects may be on layers using the default lineweight, so turning display on shows little or no visual difference.
  • Cause 3 (Command/Logic): Users often confuse lineweight display with plot style output; LWDISPLAY does not change printed line thickness.

Quick Fix & Best Practice

  • Quick Fix: Type LWDISPLAY, press Enter, then type ON and verify the Lineweight status bar toggle is active.
  • Manager’s Verdict: Keep lineweight display off during heavy drafting for performance, then turn it on for QA checks, plotting review, and layout verification.

FAQ

Does turning on lineweight display affect plotting?

No, it only changes on-screen appearance.

Where is the Lineweight toggle in AutoCAD?

It is usually on the status bar at the bottom of the screen.

Why do my lines still look thin with lineweight display on?

The assigned lineweights may be very small or the current zoom level may hide the difference.

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