Lesson video

Hello, my name's Mrs. Taylor and I'm really pleased you could join me here today for our lesson.

Our lesson today is "Parts lists: polymers and timbers" and this is part of the "Iterative Design: Nature" unit.

The outcome.

I can prepare a parts list for my design.

We have three keywords.

Parts list, which is the components required to assemble a product.

Component, which is a single part of a larger product.

And quantity, the amount or number of something.

The first is "Parts list" and the second, "Creating a parts list." Let's get started.

A parts list is also called a bill of materials is a structured document detailing the individual components required to assemble a product.

It supports accuracy, efficiency, and consistency in manufacture.

A well-structured parts list minimises errors, speeds up production and ensures cost efficiency.

Let's have a check.

When manufacturing, a parts list supports, A, accuracy; B, creativity; C, iterations; or D, efficiency.

Pause the video and have a go.

Fantastic, let's check.

That's right, it's both A and D, accuracy and efficiency, well done.

A parts list supports the thinking needed in preparation of the manufacture for all components of a design, not just those that are bought in.

Components that are bought in are things like screws, nuts, bolts, zips, press studs.

They help identify the materials needed and the amount of those materials, which is referred to as the quantity.

In the creation of a parts list, mistakes that may have been made in previous design steps can be highlighted.

A parts list can be presented in a table.

This helps to keep it organised, helps to ensure accuracy, and supports a clear understanding when reading.

Key elements of the table can be the part number, the part name and description, the quantity, the material, the source, and notes and comments.

A parts list could look like this.

Here we can see the part number on the left followed by part name, quantity, material, source, and any notes or comments.

Here is a check.

Identify the three missing elements of this parts list.

The first, the third, and the fourth columns.

Pause the video.

Fabulous, let's check.

The first column is part number.

The third column is quantity, which means how many.

And the fourth column is material, well done.

Below is a description of what could be included in a parts list.

The part number is the number that you assign to a component in your design.

The part name and description is the name of the part for reference.

For example, we might describe something as the side or the shelf.

Quantity.

This is the amount you need of the specific component.

So for example, if we had the description as side, we may have two of those.

Material.

Specific material name including the relevant dimensions.

For example, we might say 12-millimeter MDF.

Source, where the material has been sourced from.

Any notes or comments, so space for further details such as cost or stock form limitations.

A parts list along with an orthographic projection of a design can inform manufacture.

Here we have an example of an orthographic projection with a parts list, the plan, the front, the dimensions, an isometric view, and a side projection as well as the title block.

Balloons can be used to identify parts in a drawing.

Balloons connect a specific component to its corresponding entry in the parts list, for example.

And here we can see different parts of the product identified with balloons.

Let's have a check.

Name this symbol.

Pause the video.

Fantastic, let's check.

That's right, it's a balloon symbol, well done.

Task A.

Here is an illustration of a bicycle.

Identify using balloon symbols, with a reference number, five separate components on the bike.

An example has been given.

And part two, complete the parts list below for the five components that you've identified on the bicycle.

Pause the video and have a go.

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

You may have identified these five parts.

And your parts list may look like this.

Part one is the tyre and there are two of those.

It's made from rubber.

And the comment is, "Would spare tyres be needed?" Part two is the saddle outer cover.

Just one of those made from leather.

And a synthetic leather could be used to reduce the costs.

Part three is the main frame of the bicycle.

There is one of those, it's made from aluminium, and the material could be mild steel to consider costs.

Part four is the handlebar grip.

There are two of those made from silicon, or the material could be rubber.

And part five is the pedal, and again, there are two of those.

This is made from nylon, but it could be made from aluminium, well done.

We now move to the second learning cycle, "Creating a parts list." Below is a design for an accessible herb planter and details concluded about the manufacturing.

18-millimeter MDF base, 18-millimeter dowel, 3-millimeter clear acrylic shelves, construction method is wasting and fabrication.

The steps in creating a parts list are to identify the separate components in your design.

Use balloons to support this.

Part one is the top clear acrylic shelf, and part two is the second clear acrylic shelf.

Part three is the large clear acrylic shelf, and part four is the MDF base.

Part five is the dowel that would be used to connect all of the different shelves and parts.

Here we can see part one, the top shelf.

Part two, the second shelf.

Part three, the large shelf.

Part four, the base.

And part five, the dowel that connects them all together.

Let's have a check.

A component is, A, a single part of a larger product, or B, a finished product, or C, an amount.

Pause the video.

Great, let's check.

That's right, it's A, a single part of a larger product.

Part two of creating a parts list is to use an orthographic projection to get a clear understanding of the dimensions for each component.

For example, part four is the MDF base, and we can see here that we have a side view showing us that it's 450 millimetres wide, but we also have a plan view, which shows us the shape and also it is 400 millimetres deep.

Part five is the connecting dowel, and we know that that is cylindrical because we can see on the plan of part four, and we now can see that it is 300 millimetres in length.

Let's have a check.

What can be used to support knowledge about component dimensions? Is it A, an isometric view; B, an orthographic projection; C, a perspective view; or D, an exploded drawing? Pause the video and have a go.

Wonderful, let's check.

That's right, it's an orthographic projection, well done.

The third step is to construct a parts list table by adding the relevant headings and the correct amount of rows for the amount of components.

Here is an example of an empty parts list.

Step four is to populate the parts list table.

Here we have a parts list for the accessible herb planter design showed earlier.

There are five parts.

Part one is the small shelf with the whole.

The quantity is one.

The material is clear 3-millimeter acrylic sourced from the polymer supplier.

Part two is the small shelf.

Quantity one, clear 3-millimeter acrylic is the material, and again sourced from the polymer supplier.

Part three is the large shelf with holes.

The quantity is one, the material is clear 3-millimeter acrylic from the polymer supplier.

Parts one, two, and three have the notes, "Check the quality of acrylic before manufacture.

Check for damage." Because acrylic is very brittle, if it is not held securely while being transported or dropped en route, it may be damaged.

Part four of the parts list is the base, and this is quantity one, 18-millimeter MDF is the material, and sourced from the timber supplier.

And the notes are to remember to measure twice and cut once using the template to check.

Part number five is the connecting dowel, one of those, and it is 18-millimeter dowel again from the timber supplier.

It's important to check the diameter with a vernier gauge.

The fifth step is to add the parts list table to the relevant drawings.

Here we have an orthographic projection with the title block, plus an isometric drawing with balloons identifying different component parts of the product, and a parts list giving details of each of those parts.

Task B, using a previous design that you have created, identify the separate components using balloon symbols.

This can be a CAD drawing or a sketch by hand.

And part two is, using the table below, write a parts list for the design listing the separate components.

Pause the video and have a go.

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

Part one was to identify the different parts.

We can see here the isometric sketch on the left with the five different parts identified using balloons, and then we have the parts list identifying each of those components in detail.

Well done.

Here we have a summary of our learning today.

A parts list is a structured document outlining the components needed to assemble a product.

It enhances accuracy, efficiency, and cost-effectiveness in manufacturing, aiding in the preparation of all design components, not just purchased ones.

By specifying materials and quantities, a parts list helps identify errors from earlier design stages.

Presenting the parts list in a table improves organisation, clarity, and accuracy.

Key table elements include part number, name, description, quantity, material, source, and notes.

A parts list along with an orthographic projection of a design can inform manufacture.

Well done and thank you for joining me today.