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WorldSkills International

Autodesk and WorldSkills International support the goal of helping students develop high standards of competence and workplace skills.

Competitors in Mechanical Engineering Skill 05 must use Inventor to develop the parts, assemblies, animations, and drawings of the design as it would be done in a commercial engineering department. A broad knowledge of Inventor is required to be a successful competitor in this skill.  

The competition is divided into four modules. To help you prepare for each module, we provided projects with a task (see Projects tab, below). The content also includes videos and tutorials to help you design in Inventor.

For the full WorldSkills Technical Description, download the Mechanical Engineering Design – CAD Technical Description.

Learning materials


Each of these projects help competitors prepare for the Mechanical Engineering Skill 05 competition. The projects range from introductory to WorldSkills International test pieces. The projects align to each of the four modules included in the competitions. Explore a brief description of what each module entails.


Level 1 — Regionals

Level 1 projects introduce WorldSkills competitions and are suitable for the first round of heats as an internal competition within your institution, or as a classroom project. These projects concentrate on WorldSkills Module 1 (Mechanical Assemblies and Detail Drawings for Manufacture), which covers the creation of parts, assemblies, drawings, exploded views, and animations.


4–Cylinder Boxer Engine (WorldSkills Module 1)
Model multiple components, and then assemble the Boxer Engine using your modeled parts, as well as some given parts. Then produce an assembly drawing, exploded drawing, and two animations.

 4-Cylinder Boxer Engine (933M)


Elbow Engine (WorldSkills Module 1)
Model 10 simple components. Create an assembly, and then produce an assembly drawing, exploded drawing, and two animations of the Elbow Engine.

 Elbow Engine (425M)



Level 2 — Nationals

Level 2 projects include more advanced topics ideal for use at a national competition, or in an advanced class within your institution. The projects cover WorldSkills Module 1 (Mechanical Assemblies and Detail Drawings for Manufacture) and Module 3 (Mechanical Design Challenge), which require modification of an existing design and/or fulfillment of a design brief.


6-Legged Robot (WorldSkills Module 3)
Redesign a single part to fix a mechanical clasp, and produce a technical drawing to show your change. Then modify the cover of the robot, and produce numerous rendered images and animations to showcase these changes.

1-Data Sets (438M)  |     2-Exemplar Materials (301M)      3-Task and Videos (101M)


Fishing Reel (WorldSkills Module 1)
Model multiple components, and then assemble the Fishing Reel using your modeled parts as well as some given parts. Then produce an assembly drawing, exploded drawing, and two animations.

 Fishing Reel (2225M)



Level 3 — International

Level 3 projects are either past WorldSkills International test pieces or were created for this level. These projects prepare competitors for WorldSkills International competitions or National Finals. They cover all four WorldSkills Modules: Module 1 (Mechanical Assemblies and Detail Drawings for Manufacture); Module 2 (Mechanical Fabrication), which covers sheet metal and steel fabrication; Module 3 (Mechanical Design Challenge); and Module 4 (Reverse Engineering), which tests the ability to use hand measuring tools to create a 3D model from a physical component and produce a manufacturing drawing for the component.


Cardboard Box Assembly Line (WorldSkills Module 2)
Model parts from the given drawings, including the use of the frame generator. Then create drawings for exploded views, isometric views, including balloons and parts list, and a flat pattern fabrication drawing. There is a large emphasis on using presentation files to create advanced assembly animations.

1-Data Sets (214M)  |    2-Exemplar Materials (152M)     3-Task and Videos (1076M)


Digger Arm Actuation Design (WorldSkills Module 3)
Assemble the digger arm, and then use your engineering knowledge to determine which stroke cylinders will be required from the set. Then use iParts and iAssemblies for the different stroke cylinders. An advanced animation is required to show the full physical simulation of the digger arm as required by the competition parameters.

 Digger Arm Design (220M)


Digger Arm Fabrication (WorldSkills Module 2)
Model multiple parts using sheet metal. Create an assembly showing the Digger Arm, then produce a technical drawing, including flat pattern. In addition, produce a fabrication assembly drawing.

  Digger Arm Fabrication (564M)


Reverse Engineering (WorldSkills Module 4)
Model a component from a physical piece. In this instance, the model is provided and you will be required to create rendered images and a technical drawing, including surface symbols, GDT, and dimensions in order to manufacture the part.

  Reverse Engineering (115M)


Get started with the following Inventor videos.

Inventor overview

Explore Inventor, including file types, ribbon (command bar), and browser functions.

Watch video (1:25 min.)


View navigation

Get an introduction to view navigation. Learn about view commands and functions, including view commands of mouse and ribbon to orientate the model.

Watch video (1:39 min.)


Create sketches

Learn the basic concepts of using 2D sketches to create 3D shapes.

Watch video (2:48 min.)

Create parts

Discover the basics of part modeling single body parts, sheet parts, and multibody parts.

Watch video (3:37 min.)


Assembly basics

Learn how to create an assembly to position components, define movement, check for interference, and create build of materials.

Watch video (4:31 min.)


Drawing creation

Learn about drawing creation basics. When complete, create a drawing template to document your design in a DWG™ file and IDW file.

Watch video (2:21 min.)


Tutorials can be accessed through the Help systems of Inventor or AutoCAD® Electrical. For your convenience, the tutorials below have been selected as suggested learning. Exploring additional tutorials and subjects can improve your overall skills and might offer other approaches that could be an advantage in competition.

Navigation Tools
Sketch Constraints
Direct Manipulation
Parts 1
Parts 2
Plastic Parts and Features
Derived Parts
  Sheet Metal Styles
Sheet Metal Parts 1
Sheet Metal Parts 2
Cable and Harness Tutorials 
Bolted Connections
Content Center
  Frame Generator
Studio—Positional Representations


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