CAD/Auto desk Module

Objectives:                                             Objectives and standards

·        Accurately read rulers and perform measurements within a specific tolerance.

·        Learn how to read and use the Cartesian coordinate system.

·        Become familiar and be able identify common CNC and CAD terminology.

·        Proper care of the CNC machine and maintaining a clean work area.

·        Practice safe operating procedures when using the CNC machine.

·        Perform basic Autodesk Inventor operations to produce a drawing.

·        Identify/change different drawing views and planes.

·        Export Autodesk inventor drawing file into the appropriate file type.

·        Produce a “part” using the CNC machine.


Getting started:

What is CNC career video (6:29)

Cool example of a motocross helmet being make out of aluminum video (2:31)

What are G codes video (use this video to help you answer some of the questions) (5:25)


1.     Activity 1:  Questions

Complete the CNC/CAD module terminology and skills questions. You may work on this with your partner.

2.     Activity 2:  Measurement workshop

Here you will learn about different measurement units, and how to accurately measure something in the metric and customary system.

For additional help metric system video

For additional help customary/American system video


Use the rulers to measure and record the various types of measurements in the metric system and in the customary system. Open this link to record your measurement answers.  You may work on this with your partner.

3.     Activity 3:  Getting started with Autodesk Inventor. (Learning the program)

What is Autodesk Inventor? Find out

You will be working through some mini video tutorials to help you learn Auto desk inventor.

Video2 Getting started (2:04) Assignment = None

Video3 Open dialog box (3:28) Assignment = None

Video4 Create a project (6:06) Assignment = Take a snip of you setting your default folder to the correct location. You should set it to Module 4 in your personal documents.

The result should look something like this but your location will be different. Make sure you give it an intelligent name (example) video3_snip Assignment = snip of default folder path. My sample


Video5 Overview of user interface (4:15) Assignment = None

Video6 The heads up display (5:12) Assignment = snip of triangle shape extruded. My sample

Video7 Create a sketch (4:18) Assignment = None

Video8 Sketch Constraints (5:06) Assignment = None

Video9 Extruding a profile (3:55) Assignment = Assignment = snip of your extrusion  My sample

Video10 In canvas display (2:58) Assignment = None

Video14 Editing profiles (1:59) Assignment = None

Video16 Sketches versus profiles (5:44) Assignment = 3 rectangles extruded My sample

Video17 Solid bodies (2:36) Assignment = 3 rectangles, 1extruded more. My sample


4.     Activity 4:   Complete drawings

Now you are going to complete a series of different drawings and parts. You will use different techniques and tools to complete these drawings.


Drawing 1: Bolt   Sample1 Sample2

Video Tutorial

Watch the video tutorial to complete the bolt shape with the correct dimensions. The final bolt shape should look uniform and balanced.  Take a snip of the final bolt shape to show during check off.


Drawing 2: Paperclip sample

Video Tutorial

This drawing uses specific line lengths, the arch tool, and an introduction to the sweep tool. Create a finished paper clip and take a snip of it.


Drawing 3: Chamfer and fillet sample

Video Tutorial

Complete this drawing to learn how to use the chamfer and fillet tools. These tools will create rounded and angled edges on the corners of your drawing. Create a finished stairs drawing and take a snip of it.


Drawing 4: Text on a flat surface sample

Video Tutorial

This video tutorial will introduce text and show how to apply it to a flat surface. You will also learn how to manipulate the emboss tool to allow your text to pop out, cut in, or cut entirely though the part.  Produce a rectangle part with text and apply one of the following emboss tools: raised above the surface, cut into the surface, cut complete through the material. Take a snip of your finished drawing.  sample


Drawing 5: Thumbtack sample

Video Tutorial

By completing this drawing you will see how to use a centerline to “extrude” a part around a centerline 360 degrees. This is the hardest of the 4 drawings and will require changing line dimensions and creating 2 fillets.


5.     Activity 5: Designing and producing a part

In activity 5 you have options of different parts to produce, or produce something from your own design. List of suggestions:  name plate, mini baseball bat, car logo, 2 sided wrench. This activity will be graded on your design and the complexity (work put in).


Things to consider

·        Our machine is only a 3 axis machine.

·        Limit your sizes to 9” x 3” x .75” thick.  (talk to me if you need thicker pieces)

·        The material available is plastic and wood.

·        The smallest bit to be used is 1/8th inch.

·        Chipping may occur if there is a high level of detail in the design.

·        Talk to the instructor about design possibilities or limitations.