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AutoCAD Productivity

Layer Previous

by Michael Beall

From: AutoCAD Productivity Articles #132
Originally published: February 2014

PreviousLayers are the lifeblood in AutoCAD, and efficient management thereof is the key to your own quality of life; specifically, your sanity.

The Layer Previous button can be a real time saver and is, at its core, a Layer-specific ‘Undo’.

How to Use Layer Previous

  1. Open a drawing, then make a new layer [MC_FEB2014], give it a color and make it current; this will be our testing layer.

  2. Change the Color of any other layer in the current drawing, but don't make that layer current.

  3. On our test layer, draw a small rectangle somewhere.

  4. Click Layer Previous and the rectangle remains, but the color of the layer you changed is restored.

  5. Freeze several existing layers, then Rotate the rectangle.

  6. Click Layer Previous and the previously frozen layers are thawed… but the rectangle is still rotated!

See all the articles published in February 2014

Michael's Corner

Between 2003 and 2016, Michael Beall (and one or two guests) wrote almost 600 articles for CADTutor. The focus of these articles is AutoCAD productivity, and although some of them are now more than a few years old, most remain relevant to current versions of AutoCAD. The article above is just one example. Check out Michael's Corner for a full listing.

Tip of the Day

Using Imprint to sub-divide faces

Imprint in actionThe Imprint command (Modify ❯ Solid Editing ❯ Imprint Edges) gives the first impression of nothing more than adding graffiti to solids. Upon closer investigation, however, we find that it actually modifies the face on which it is placed, effectively sub-dividing it. Sub-divided faces can then be extruded using the Extrude faces command (Modify ❯ Solid Editing ❯ Extrude faces).

Procedure

  1. Create a box.
  2. Draw a line on one of the faces.
  3. Imprint that line on the solid.
  4. Use Extrude faces to extrude the sub-divided face.

To generate this modified part with Boolean operations would not be difficult but, as we all know, speed and accuracy are the name of the game. The procedure describe above can be auto-executed with the command macro:

^C^C_line;\\;_solidedit;b;i;\last;y;;;f;E;\;\\;;

The UI could benefit from some advanced programming, but if one pays attention to the Command Prompts, it's not so bad.

Note: This tip relates to versions of AutoCAD before 2007. Although the technique works with 2007 and above, the same operation can be achieved more easily using the Presspull tool.

Today's tip is by SEANT

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