To Work with Sketches

You can switch between sketch and construction geometry, redefine a sketch to a different plane, and in 2D sketches, you can measure region properties, slice, or add text or images.

What's New: 2022, 2023

Locate a Sketch in the Browser

Construction geometry constrains normal sketch geometry. It can be used in sketches that use parametric features; construction geometry isn’t used to define profiles or paths. Construction geometry does not add features when the sketch is consumed.

Switch Between Sketch and Construction Geometry

Geometry behavior in a sketch depends on the linetype assigned to it. Sketch geometry that uses the default, normal linetype can be consumed by features.

  1. To manually invoke construction geometry:

    • Before starting to draw in the sketch environment, click Sketch tab Format panel Construction.
    • In an active sketch, select the geometry and then click Construction to convert sketch geometry to construction geometry.
  2. To turn off construction geometry, click Construction again.

Important: To make projecting geometry as construction geometry the default behavior, select Project objects as construction geometry in the Application Options dialog box on the Sketch tab. With this option selected, you do not have to continually toggle the Construction command on when creating sketch geometry. When this setting is selected, every time you project geometry, the geometry is projected as construction geometry. By default, this option is deselected.

Redefine a Sketch to a Different Plane

In a part or assembly file, you can move a sketch to a different plane. Redefining a sketch plane is useful if you need to reorient a feature on a part, or if you want to delete a feature but keep its sketch for use in another feature or a new face or work plane.

  1. Right-click the sketch in the browser and choose Redefine.
  2. Click the face or plane on which you want to attach the sketch.

Measure Region Properties (2D Sketches)

  1. In an active sketch, click Inspect tab Measure panel Region Properties .

  2. In the graphics window, select one or more sketch loops.

  3. In the Region Properties dialog box, click Calculate.

    Inventor calculates the following measurements, depending on your selection:

Slice Graphics (2D Sketches)

Sometimes geometry obscures your sketch plane, or components in a part model hide it. To reveal the sketch plane, you can temporarily slice away the obstructing components.

  1. Rotate the model so that the portion you want to slice away faces you.

  2. In the browser, double-click the 2D sketch you want to edit.

  3. In the status bar, click Slice Graphics or press F7.

    Inventor removes the portion of the model facing you, revealing the plane for the sketch geometry.

  4. Use commands to create geometry on the sketch plane.

  5. To restore sliced graphics, do one of the following:

    • Click a feature command.
    • Click the Finish Sketch to end the sketch.
    • Click Slice Graphics in the status bar.
    • Press F7.

Add Text (2D Sketches)

You can add text, such as a model number, manufacturing date, or brand, to a sketch. The text will ultimately be stamped, etched, or engraved into the part. You can add text in a sketch, finish the sketch, and create the emboss feature, selecting the text as the profile.

In Inventor, you can add linear text or geometry-aligned text. Both types of text are like any other geometry: after you create it, you can double-click it to edit it, drag to move it, or select it and press Delete to remove it.

Add Images (2D Sketches)

You can place artwork in parts to represent application of decals, painting, or silk screening. After you place an image in a sketch, use Decal and Emboss to achieve effects such as raised text, imprints, or silk screens. These commands can also conform the image to an irregular shape or surface.

Inventor sketches can include .BMP, .GIF, .JPG, and .PNG images as well as Excel workbooks and Word documents.

  1. In a 2D sketch, select a planar face or work plane and then click Image on the Insert panel of the ribbon.

  2. Navigate to the folder that contains the image file and then click Open.

    Tip: Select the Link option so that changes made to the image file can be reflected in Inventor.
  3. Click in the graphics window to place the image. The cursor attaches to the upper-left corner of the image.

  4. Click to place additional images, or right-click and choose OK.

  5. After the image is placed, you can:

    • Drag from the center to reposition the image.
    • Click a corner to rotate the image.
    • Click an edge to resize the image (aspect ratio is preserved).
    • If the image file is linked, right-click it in the browser and choose Update to retrieve the latest version of the file.
    • Right-click the image and deselect Visibility to temporarily hide the image in the sketch. The bounding box remains visible.
    • Right-click the image in the browser and choose Delete to remove it from the sketch.
    • Access the Image Properties dialog box: Right-click the image and choose Properties. Here you select to render the image with unchanged alpha values (Alpha transparency) and specify a transparency color.
      • Change its orientation (parts only).
      • Use Mask: Select to make chroma key image pixels transparent. This option ignores any existing image alpha layer.
      • Set Chroma Key: Select to specify a transparency color.
      • Use Image Alpha (only available if the image supports alpha layer): Combines the background with the image using the alpha layer of this image.