Level: Introductory
Prerequisite: None
Description: Students develop basic knowledge and skills in computer-aided design (CAD).

For this course, we will continue to develop our skills in Autodesk Inventor, with a focus on creating 2D drawings.

Using Autodesk Inventor, Complete the following assignments:

  1. Inventor Assignment 1
  2. Inventor Assignment 2
  3. Inventor Assignment 3
  4. Inventor Assignment 4

Dimensioning Presentation: Dimension Guidelines

  1. Dimensions should NOT be duplicated, or the same information given in two different ways.
  2. No unnecessary dimensions should be used – only those needed to produce or inspect the part.
  3. Dimensions should be attached to the view that best shows the contour of the feature to be dimensioned.
  4. Whenever possible, avoid dimensioning to hidden lines and features.
  5. Avoid dimensioning over or through the object.
  6. A dimension should be attached to only one view; for example, extension lines should not connect two views.
  7. Whenever possible, locate dimensions between adjacent views.
  8. Avoid crossing extension lines, but do not break them when they do cross.
  9. Whenever possible, avoid sending extension lines through object views.
  10. In general, a circle is dimensioned by its diameter and an arc by its radius.
  11. Holes are located by their centerlines, which may be extended and used as extension lines.
  12. Holes should be located and sized in the view that shows the feature as a circle.
  13. Do not cross a dimension line with an extension line, and avoid crossing dimensions with leader lines.
  14. Leader lines point toward the center of the feature, and should not occur horizontally or vertically.
  15. Dimension numbers should be centered between arrowheads, except when using stacked dimensions, and then the numbers should be staggered.
  16. Concentric circles are dimensioned in the longitudinal view, whenever practical.

Inventor Project

The requirements for the Final Project are as follows:

  1. Choose an object to model in Inventor. You will be given one week of class time (5 hours minimum) to complete the model.
  2. Object chosen must not be too simple. It must demonstrate your knowledge and skills in inventor. Here are some of the functions we have used in Inventor:
    • Creating Sketches
    • Extruding to 3D
    • Drilling holes (countersinking, threaded, etc.)
    • Using constraints.
    • Mirroring
    • Revolving
    • Drawing lines, arcs, circles, splines, etc.
    • Dimensioning
    • Lettering
    • Selecting Materials
    • Fillets
    • Chamfers
    • Shell
  3. Provide at least one photograph of the object you are going to model. Print it in colour (Room203-C Printer) and attach it to this sheet.


  • 50-70% Design and create a model that will 3D print successfully.
  • 70-80% Design and create a model that uses 2 parts that fit together precisely and that will 3D print successfully.
  • 80-90% Design and create a model that uses more than 2 parts that fit together precisely and that will 3D print successfully.
  • 90-100% Design and create a model that incorporates a hinge (3 parts minimum) that fits together precisely and that will 3D print successfully.

3D Printing Reminders

  • Be aware of overhangs and bridges. Minimize them.
  • The printer’s nozzle is 0.4mm, you cannot physically print any details smaller than that.
  • Make all holes and features no smaller than 2mm.
  • Wall thickness should be 2mm minimum.
  • Parts that will fit together must have tolerance (looseness) designed in.
  • Be aware of print time. No 10 hour prints.
  • Be aware of build volume (size). Keep all parts to within a 150mm max dimension.
  • Be aware of build height. See above.
  • Be aware of what causes warping. Choose print orientations to avoid warping.

The rest of the instructions are on the CAD1-Final assignment sheet.

Rendering your Project


  1. Rendering tutorial
  2. Arbor Press model for tutorial.

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