Designing in Fusion 360 CAD


If you’re new to Fusion 360, please start by checking out these resources below.


Fusion 360 Design Academy Training:

NYC CNC’s Fusion Fridays:

Lars Christensen Fusion 360 YouTube Series:



  • The Data Panel is where you manage your projects and data. You can create new projects, share them with other users, upload models and other data.
  • The Workspace Switcher allows you to toggle between all the workspaces Fusion 360 has to offer. Click the Workspace button at the top left corner, and select the workspace you’d like to switch. This button is labeled with the name of the current workspace (Design, Render, Animation, Manufacture, etc.) and will update once you switch workspaces.
  • The Browser is where all your work for a specific project will be saved. Every time you create a new feature or toolpath, a new entry will be added to your Browser. To edit, right-click and select edit.
  • The Toolbar is where you’ll find the design tools you can work with within the Fusion 360.


Design considerations

Make sure that the tool can mill all the part features

  • Sharp interior corners should be round corners for endmills
  • Flute length should be longer than the depth of the cut
  • The holder should not be in the way of milling toolpaths

The part  size should be in the range of the milling envelope of the machine


Tool Types

Flat end mill

They are usually used for roughing and can cut all directions

Ball end mill

They are usually used for finishing and on complex surfaces


Tool measurements

Overall length (L): total length

Flute length (Lf): length of the cutting part

Shoulder length (Ls): length below the shaft change

Tool diameter (D): diameter of the flute

Shaft diameter (Du): Upper diameter of the tool

Holder diameter (Dh): diameter of the tool holder

Tip radius ®: radius of the tool – if any


CAD model step by step

  • Create a sketch in the design workspace
  • Click on Create Sketch icon. Click on the XY plane since the tool comes down from the z-axis. Create the geometry by using the sketch tools such as lines and curves. Finalize the dimensions.
  • Click on the Solid tab and select the Extrude icon to create the 3rd dimension on your part.
  • Add the holes and fillets on the edges to finalize the details.