Hi Zakaria,
Below is a video showing how to go about accomplishing the tasks you mentioned, on iOS:
- Start the Line tool by tapping the lower-left icon (Cube with a + sign), then selecting Line
- Draw the line by dragging your finger across the screen to define the start and end points - you can snap to the red/green axes for alignment
- Once the Line is drawn, you can set the length of it by tapping on the dimension box and typing in the desired length
- Select the line, press and hold your finger over the line to get the Context Menu, select the Rotate command
- Move the origin of the compass to the endpoint (optional if you want to modify the default rotation point), then grab the arrow to start rotating
- Set the rotation down somewhere (lift your finger up), then tap the dimension box to set the desired angle
- Drop a cube from the same menu in the lower left corner
- Drag your finger along the screen then release to set the cube
- Select the top face, press and hold to bring up the Context Menu
- Select the Offset command, and drag then release to set the Offset at some dimension
- Tap the dimension box to set the dimension to a specific number
- Tap off in the distance to deselect
- Select the newly-offset Face, then tap and drag it down to push it all the way through - effectively shelling the solid and creating walls
Video link: https://autodesk.box.com/s/3irv07acmk79w191ytucd74m5poerwi0
Let me know if you have trouble accessing the video.
iOS doesn't have our Advanced Modeling Tools, so the steps above show how to achieve the Shell command using Offset and Drag Face. However, our Web application does have the Shell tool, so here's how you can do it there:
- Drop a cube from the Primitives menu in the toolbar:

- Start the Shell tool from the Advanced Modeling toolbar:

- Specify the Shell distance. -1 (default value) means the outer shape stays the same size, and the wall thickness is added towards the inside. +1 means the entire shape will get 1' thicker on all sides.
- Select the top and bottom faces to remove them from the shell - so you'll get thickened vertical walls

- Click the checkmark/Finish button to execute the Shell:

Let us know if this helps.
Josh Goldstein
Senior Product Manager