Autodesk® 123D® Design is an application that runs in a Web-GL enabled web browser, an iPad and on a computer. It allows you to drag, drop and combine primitive shapes, and also has pre-defined models that can be combined together or with the primitive shapes.

PC Version Intro

1. Download and install 123D Design
2. Open the application
   
   

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3. In the upper left corner you will find the dropdown menu. Roll your cursor over the down arrow and select New to create a new document.
   
   

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4. Here are the tools to help you construct your models:
   
5. Here are the navigation tools to help you move around:
   
6. You can also use the view cube to change the camera:
   
7. Click on the kits arrow to browse pre-build parts:
   
8. Click on Primitives and select Box. Drag and drop the box on the grid. Adjust the dimensions
   
9. You can modify (move, scale or hide) the entire form by clicking on the box and then clicking on the gear in the box:
   
10. You can select a face. Select the primitive then roll over the face you want to edit. When the face is highlighted click on it to accept the selection. Then click on the gear in the box:
    
11. Modifications you can make to the face are:
    • Tweak:
        
    • Push/Pull
       
    • Shell
        
12. When editing, you can always enter exact measurements or use the mouse to manipulate the form.
13. Design provides selection specific editing options for entire form, face and edge. To select an edge, rollover it until it highlights, then click
    
14. Clicking on the gear will bring up the three options:
    
15. Tweak
    
16. Fillet
    
17. Chamfer
    
18. Select the circle sketch
    
19. Click on the plane then select the center point
    
20. Drag from center point
    
21. Selecting the interior of a 2D circle provides the following options:
    
    
22. Selecting the perimeter of a 2D curve provides the following options:
    
23. Click on the workplane to select it
    
24. Select the circle sketch tool
25. Click on the Sketch Plane to select it:
    
26. Specify the diameter by dragging or typing a value
    
27. Select the sketch and click on the Move icon. Rotate the sketch 90°
     
28. Seelct the sketch, copy, paste, move forward and rotate
    
29. Copy, paste, move and roate again
    
30. Once again
    
31. One more time:
    
32. Seelct all the sketched and move the cursor over the widget
    
33. Select Loft:,br />
34. Make sure you are creating a new solid
    
35. This is the difference if you loft all at once or section by section:
    
36. Select both ends and then click on shell
    
37. Specify the amount to shell
    
38. Create another 90° 2D sketch and then select the spline tool
    
39. Click to specify the Sketch Plane, then click on the center point of the rotated circle, the click and pull to create a smooth curve. Click to end or press ENTER:
    
40. You can adjust the curve by moving the sketch points:
    
41. Click on the sketch, select Sweep, make the polyline the path. Here you can see sweeping by 50%:
    
    
42. Here is the full sweep:
    
43. Unfortunately you cannot shell a sweep, but there is a way to acheive a similar effect:
    • Click on the sketch and select scale
      
    • Specify the scale amount:
      
    • Sweep the smaller sketch and select subtract:
      
44. Create another 2D sketch, then select the polyline tool
    
45. Click the Sketch Plane then click two points. Press ENTER to end the line after clicking
    
46. Select the 2D sketch then select Revolve. Choose tha line as the axis:
    
47. Specify the revolution and make sure it is a solid:
    
48. Shell the revolved sketch:
    
49. Experiment.
50. Select a part and Export as an stl
    

Boolean Modifiers

Combine

1. Create at least two objects
2. Click on Combine>Merge
   
3. Select all the objects and then press ENTER
   

Intersect

1. Start with objects that you want to combine and find the intersection
   
   
   

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2. Click on Combine and select Intersect:
   
   
   

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3. Select the objects:
   
   
   

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4. Press RETURN:
   
   
   

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Subtract

Approach 1 Approach 2

Snapping withAutodesk® 123D® Design on the computer

1. Click on Primitives and select a Box and a cylider:
   
2. Click on the Snap Tool
   
3. Click on the top face of the cylinder. By selecting this first, the cylinder will move to the next object and align this face to the next face you select:
     
4. Click on a face of the destination object:
   
5. After you select the destination the first object will align to the destination:
   
6. If you click on this object, you will notice that it is now a single entity. To select just the cylinder, double-click on it. To move a part of the group independently, double-click it and move it. Press RETURN to confirm the transformation.
   
7. You can ungroup objects by selecting the group and clicking on ungroup:
   
8. To select all your ungrouped objects you can box select, drag a box with your cursor around your objects.
9. Export as an stl and print!

Coin Trap

1. Find a coin
2. Use the digital calipers to measure the diameter. Make a note of it.
3. Create a box that is at least 5mm larger than the coin's diameter.
4. Create a cylinder with a diameter less than the coin and a height equal to the box.
5. Copy and rotate the cylinder twice so that you have a shape like this:
   
6. Combine the cylinders:
   
7. Create a sphere with a diamether that matches the length, width and height of your box.
8. Align the cylinders with the sphere using the snapping tool
   
9. Use the Move tool to move the sphere down to the sketch plane
   
10. Align the box with the other shapes and move the box down to the Sketch Plane:
    
11. When all the objects are aligned you should have something similar to this:
    
12. Subtract the combined cylinders from the cube
    
13. Subtract the sphere from the box
    
14. Select all the outer edges of the box and apply a 1mm filet
    
15. Select the box and export it.
    
16. Make a note of the print time as you'll want to drop the coin in about midway through printing

In addition to downloadable and iPad applications, 123D Design can run in a web-gl enabled browser.

123Dapp.com

1. Navigate to 123Dapp.com and select 123D Design
   
   

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2. You want to launch the 123D Design online app
   
   

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3. If this is the first time you have used the app, you'll need to download and install a plugin
   
   
   

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4. You will have to wait a few minutes
   
   
   

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5. Start a new project:
   
   
   

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6. Here is the interface:
   
   
   

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7. To create a new document, click here:
   
   
   

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8. Change to units to mm:
   
   
   
   

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9. To navigate around the space, use the View Cube
   
   
   

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10. To create your models you can select from the following list of shapes:
    
    
    

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11. To start select Primitives
    
    

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12. Drag a Cube from the menu to the work area
    
    
    

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13. You can adjust the dimensions of your cube:
    
14. Drag a Cylinder from the menu to the work area
    
    
    

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15. Use the Move tool and align the two shapes
    
    
    

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16. You can adjust the length, width and height using the manipulators
    
    
    

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17. You can adjust the z position of a shape by clicking and dragging the cone manipulator:
    
    
    

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18. Select both the cube and the cylinder (use SHIFT+click). Select Combine to Make part:
    
    
    
    

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19. Double click on the cylinder
    
    
    

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20. Select Void to convert the cylinder:
    
    
    
    

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21. Click in the work area:
    
    
    

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Fillet and Chamfer Tool

Chamfers and fillets are types of edges. A chamfer is a beveled edge connecting two surfaces. A fillet is the rounding off of an interior corner.

Chamfer Tool

1. Select the Chamfer option
   
   
   

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2. Select an edge or multiple edges:
   
   
   

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3. Adjust the offset for the chamfer:
   
   
   

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Fillet Tool

1. Select the Fillet option
   
   
   

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2. Select an edge or multiple edges
   
   
   

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3. Adjust the fillet value:
   
   
   

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Shell Tool

1. Select the Shell tool and select edges:
   
   
   

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2. Specify the thickness:
   
   
   

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Text Tool

1. Selet the Text tool:
   
   
   

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2. Modify your text:
   
   
   

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3. Rotate your text appropriately:
   
   
   

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4. Use the move tool to adjust placement
   
   
   

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5. Change the font if you want to:
   
   
   

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6. Select the text and your shape and click on the Combine Tool to make the selection a part:
   
   
   
   

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7. Select just the text and convert it to a void
   
   
   
   

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8. Click in the work area:
   
   
   

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Exporting as STL

1. Play around with combining forms
   
   

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2. Save your work
   
   
   

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3. Login to your account:
   
   
   

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4. Upload project to the cloud, wait, download STL from the cloud via the 123dapp.com site
   
   
   

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5. Open in Makerware, slice and print!
   
   

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