From BlenderWiki

Jump to: navigation, search
Inset Extrude
Inset and Extrude selected polygons
UI location View3d > hotkey I, when in Edit Mesh mode
Usage Select a face or faces, hit the Inset button, adjust the inset amount, height, using the mouse in the 3d view or...
Version 0, 5 Author(s) Jon Sandström
Blender 2.57 License
Category Mesh Distribution Upload
Note(s) ....

Executable information
File name
Current version download
Python modules math

Warning This is an alpha version.
Links BlenderArtists thread
Known Issues TODO:
  • Sometimes normals calculates incorrectly.
  • if two selected "islands" meet with corners in one point, the mesh is calculated incorrectly, or the script fails.
  • in some special cases the new selection is calculated incorrectly.


  • To Do


Method 1:

  • Copy the file to the "addons" folder of your blender installation. the location should be similar to this: 2.57/scripts/addons
  • Restart blender
  • Open the user preferences window (Ctrl+Alt+U) and selecting the "Add-Ons" tab, then type in "inset extrude" in the search field and enable the addon by ticking the checkbox in the top right corner.
  • The addon is now ready for use

Method 2:

  • Open the user preferences window (Ctrl+Alt+U) and go to the "Add-Ons" tab.
  • Click the "Install Add-on..." button in the bottom list, locate the file on your hard drive and install it.


Inset a selection:


  • select the area/areas you want to inset, then click the I key to execute the tool. For big selections the script may take a second to load.
  • move the mouse horizontally to until the desired result is achived.
  • confirm by clicking the left mouse button
Inset and extrude the selection from surface:


  • repeat the previous steps, but instead of clicking the left mousebutton, click and drag vertically to extrude from the original surface.
  • confirm by releasing the left mousebutton.
Inset and extrude with exact values:
  • Once the tool is executed and in interactive mode, the user can input numerical values for both inset and extrusion. the numpad operators "/, *, -, +" will also function as mathematical operators.
  • Press enter to confirm the numeric input.
  • Holding Shift will increase the sensitivity
  • Holding Ctrl will snap to 1 decimal place. Combined with Shift it will snap to 2 decimal places.
Creating a shell:


  • Select all faces of the object you want to make a shell for.
  • Duplicate the selection with Shift+D and press the right mousebutton to cancel the translation
  • click I key to start the tool (remember it may take a few seconds to precalculate large selections). type "0" and press enter, then move the mouse until the desired thickness has been obtained
  • remove doubles and check the face normals

How it Works

To Do