Hello.

My name's Mrs. Taylor.

And I'm really pleased you can be here to join me for our lesson today.

Our lesson today is Tools and Processes - Polymers and Timbers.

And this is part of the Iterative Design - Nature unit.

The outcome.

I can select and use tools safely to manufacture my design.

We have four keywords today.

Tools, a device or instrument used to perform a task.

Processes, a series of actions taken to achieve a specific outcome.

Cutting, the act of slicing, dividing, or removing something using a sharp tool.

And shaping, the process of giving form or structure to something.

We have two parts to our lesson, cutting lines and curves, and the second part, cut a design.

Let's begin.

Design and technology involves the use of many different materials, each chosen for its unique properties and suitability for different purposes.

Selecting and using the appropriate tools and processes for a wide range of materials is an important task.

This is important because of efficiency.

The right tool ensures effective work, saving time and effort.

Quality.

Proper tools provide accuracy and a professional finish.

Safety.

Incorrect tools or handling can cause accidents or damage.

Material preservation.

Materials need specific tools to avoid damage.

And tool longevity.

Correct use prevents wear and extends tool life.

Here we have a check for understanding.

Read the sentence and complete it with the missing words.

Pause the video.

Fantastic.

Let's check.

Selecting and using the appropriate tools for a wide range of materials correctly and safely is an important task.

Well done.

Material processes involve marking out, which is the measuring and drawing on a material, cutting, which is shaping materials by removing excess parts.

We can describe this as a wasting process.

Shaping, which is forming materials into desired shapes.

Joining, connecting materials using methods like glueing.

We could describe this as fabrication.

And finishing, enhancing appearance or durability like painting.

when working with polymers and timbers, the essential tools you should use for cutting processes are a coping saw, a tenon saw, and a bench hook.

When working with polymers and timbers, tools that will support cutting processes are a try square, masking tape, a metal rule, and tape measure.

Here we have a check for understanding.

Name the cutting tools below.

Pause the video.

Wonderful.

Let's check.

This is a tenon saw, which must always be used in conjunction with a bench hook.

Well done.

Practise is essential when using tools to cut any material.

Polymers and timbers can be easy to cut, but their ease can lead to cutting too quickly and losing control.

Maintaining accuracy along the cutting line is challenging, so practising first is important.

When cutting, we must consider the health and safety issues.

Saw blades are sharp and must be stored in locked cabinets and be carried carefully.

Saws create sawdust, which can be harmful if we breathe it in.

Therefore, it is important to remove the dust regularly using a vacuum With a suitable filter.

Polymers can be cut using a coping saw.

Care should be taken if the polymer is thin or brittle.

Timbers can be cut either with a coping saw or with a tenon saw and bench hook.

Tenon saws are suitable for straight cuts in solid timber.

Coping saws are suitable for curved shapes in thin timber or manufactured boards.

Here we have a check for understanding.

Why is it important to practise cutting? Is it a, to maintain accuracy, b, to cut quickly, c, to lose control, or d, to develop your skills.

Pause the video and have a go.

Wonderful.

Let's check.

That's right, it's a, to maintain accuracy, and d, to develop your skills.

Well done.

Here we have Task A.

Using polymer and timber off cuts, practise cutting straight and curved cuts.

Part two, describe what went well and how you could do even better next time.

And part three, describe the health and safety considerations when cutting polymers and timbers.

Pause the video and have a go.

Wonderful.

Let's have a look at some of the answers you may have come up with.

Alex shares his answers.

Part one, "My design uses acrylic, so I chose an off cut of five millimetre thick acrylic and an off cut of three millimetre thick acrylic." Part two, "The five millimetre acrylic was easy to cut using the coping saw.

The three millimetre acrylic was more difficult as it wobbled in the vice.

I could lower the acrylic in the vice and keep adjusting its position to reduce the wobble when cutting." And part three, "I wore an apron and carried the coping so carefully from the tool cupboard to my bench.

I used a vacuum to remove the dust." Well done.

Part two of our lesson is cut a design.

Here, a template has been used to mark out the shape of a herb planter on the MDF and clear acrylic.

Measure twice and cut once is a useful phrase when manufacturing.

This reminds us to check the accuracy of our marking out before we cut.

This improves the quality and reduces errors and material waste.

Let's have a check for understanding.

Why is measure twice and cut once useful when manufacturing? Is it a, helps to manufacture quickly, b, reminds us to check accuracy, or c, improves quality.

Pause the video and have a go.

Great.

Let's check.

That's right, it reminds us to check accuracy and it improves quality.

So the correct answers were both b and c.

Well done.

When cutting polymers or timbers with saws, it is important to hold the material securely.

This makes cutting safer and easier as you have both hands available to hold and control the saw.

It also improves quality as the material does not move around.

We can hold materials in different ways.

This depends on the material length and width, the material thickness, the shape of the cut, and the choice of saw.

Different ways of holding polymers and timbers to cut with saws include, bench hooks are used for solid timber or dowel with a tenon saw, and vices are used for sheet material, such as manufactured boards or polymer.

Here we have a check for understanding.

Which of the materials below would a bench hook be suitable for holding? Pause the video and have a go.

Great.

Let's check.

That's right, it would be both a and c.

So the solid timber, in this case pine, is a, and the dowel, which is c.

They're both correct.

Well done.

We now move to Task B.

Part one is to select the correct tools and equipment to cut a component of your design, and part two is to cut that component.

Pause the video and have a go.

Wonderful.

Let's have a look at some of the answers you may have come up with.

Alex says, "I chose a coping saw and a vice to hold a sheet of acrylic and cut a curved shape." And he also used a bench hook and a tenon saw to cut the dowel for my planter design.

Here we have a summary of our learning today.

Selecting and using the appropriate tools and processes for a wide range of materials is an important task.

It ensures tools are used safely and accurately.

Practise is essential when using tools to cut any material.

Polymers and timbers can be cut using saws.

When cutting, we must consider the health and safety issues, which includes safe storage and movement of saw blades and dust.

Well done.

And thank you for joining me today.