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Lesson 10 of 16
  • Year 10

Create, modify and constrain 2D sketches in Fusion

I can create 2D constrained sketches using Fusion.

Lesson 10 of 16
New
New
  • Year 10

Create, modify and constrain 2D sketches in Fusion

I can create 2D constrained sketches using Fusion.

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Lesson details

Key learning points

  1. Fusion is a sketch based CAD application, based on solid parametric modelling.
  2. In Fusion, sketches are 2D geometric representations used to create 3D solid models.
  3. There are four sketch tools in Fusion: create, modify, constraints and palette.
  4. Constraints should be applied to sketches to avoid design errors.

Keywords

  • Sketch - creating basic shapes like lines, circles, rectangles, and text

  • Modify - using tools such as fillet, trim, and offset

  • Constraints - used to control sketch relationships and avoid design errors

Common misconception

Physical sketching is the same as sketching in parametric CAD.

Sketches in parametric CAD need to be constrained in order to create accurate and error free models.


To help you plan your year 10 design and technology lesson on: Create, modify and constrain 2D sketches in Fusion, download all teaching resources for free and adapt to suit your pupils' needs...

Pupils will complete a mix of creating their own sketches and sketching within the greenhouse model. Allow time for pupils to become familiar with the sketching tools.
Teacher tip

Equipment

Access to Fusion. Downloadable greenhouse model.

Licence

This content is © Oak National Academy Limited (2025), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

Lesson video

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Prior knowledge starter quiz

Download quiz pdf

6 Questions

Q1.
What does CAD stand for?

Computer Added Drawing
Correct answer: Computer Aided Design
Constructed Assembly Design
Computer Assisted Drawing

Q2.
What does parametric mean in CAD?

drawing only in 2D
building models from images
Correct answer: using measurements and rules to define shapes
ignoring dimensions

Q3.
Fusion is a sketch-based CAD application used to create models.

Correct Answer: solid

Q4.
Which of these is a basic sketch shape?

Correct answer: line
texture
render
assembly

Q5.
Match each tool with its purpose:

Correct Answer:Create,draw shapes like lines or circles

draw shapes like lines or circles

Correct Answer:Modify,change shapes using tools like fillet or trim

change shapes using tools like fillet or trim

Correct Answer:Constraints,control shape relationships and prevent errors

control shape relationships and prevent errors

Q6.
In Fusion, sketches are created in before being turned into 3D models.

Correct Answer: 2D

Assessment exit quiz

Download quiz pdf

6 Questions

Q1.
What type of modelling is Fusion based on?

surface
Correct answer: solid parametric
wireframe
artistic

Q2.
Sketches in Fusion are 2D geometric representations used to create models.

Correct Answer: solid

Q3.
What do constraints do in a Fusion sketch?

Correct answer: control sketch relationships and prevent design errors
make sketches colourful
delete shapes
change the material of the object

Q4.
Match each sketch tool category with its function:

Correct Answer:Create,draw basic shapes and geometry

draw basic shapes and geometry

Correct Answer:Modify,adjust shapes with fillet, offset, or trim

adjust shapes with fillet, offset, or trim

Correct Answer:Palette,control display settings like construction lines

control display settings like construction lines

Q5.
Why should constraints be applied when sketching in Fusion?

to make sketches colourful
Correct answer: to avoid design errors and keep geometry consistent
to change materials
to delete sketches automatically

Q6.
Fusion sketches can be turned into 3D models by using the tool.

Correct Answer: extrude