Lesson video

Hi, welcome to today's design technology lesson with me, Ms. McGoldrick.

And it is on creating a parts list, and the focus is on the material papers and boards.

And this lesson is part of the unit Intuitive Design, and we focus on a design from nature.

So let's get started.

Okay, today's lesson outcome is: I can prepare a parts list for my design.

Our keywords for this lesson are parts list.

So this is a list or a table containing kind of the information required to assemble a product.

And then we have components.

So a component is a single part of a larger product.

So products are usually made up of lots of different components.

And then we have quantity, so the amount of something needed.

Usually, in a product, you will get lots of different components and you will need a certain quantity of those components.

Okay, our first lesson outline is parts lists.

So a parts list can also be called a bill of materials.

And it is a structured document, a list or a table, and it's got lots of information in there about those individual components that are needed to assemble a larger product.

And it's really good for supporting accuracy, efficiency and consistency in manufacture.

And if you have a well-structured parts list, it really does kind of minimise errors, it speeds up production, and really important to those really large manufacturing companies, it ensures cost efficiency.

So our first check, okay? When manufacturing, a parts list supports.

Accuracy, creativity, iterations, or efficiency? So have a go at this.

So when manufacturing, a parts list supports accuracy and efficiency.

So well done if you got that right.

So it's all about preparation.

So the manufacturing part of any project is really, really important.

And if you encounter lots of mistakes during this, there's gonna be lots of delays, it can cost a lot of money, and it can really, really slow you down.

So a parts list really supports that preparation for that manufacturing parts of all of those components.

And it's really important to note that it's not just for components that you might get elsewhere, that you might buy or acquire from other places.

It's for all components that are involved in your design.

And a parts list helps to identify materials that are needed and the amount of material that's needed.

And that is referred to as the quantity.

So the quantity is the amount of the material that is needed.

And in the creation of a parts lists, it's gonna highlight any mistakes that might've been made at earlier stages in that designing phase.

So especially kind of linked to maybe your orthographic projection, thinking about how many components are actually needed.

When you go through your parts list, there will be things that kind of stick out and kind of are shown that you think, "Hmm, okay, that doesn't seem quite right.

Let's go back a few steps and let's just check that." And parts lists are usually presented in a table.

And that's really good for keeping it organised, and it helps other people to read it clearly as well.

Now in this table, the key elements of a part lists usually are a part number, part name and description, the quantity, the material, the source, so where are you getting it from, and then some notes and comments that might be needed.

So a parts list could look like this.

So we've got a table format.

At the top, we've got the name of the design and then we've got some columns here.

So we've got the part number first.

So as you can see, there's five different parts, five different components on this parts lists.

Then we've got a part name, quantity, material, source, notes and comments.

So the part name, it's quite difficult to give components a name, and they usually end up being quite long sometimes, hence the need for a part number.

It simplifies it.

So components and parts will be referred to usually by their number instead of their name as their part name can get a bit complicated.

Okay, time for another check.

So identify the three missing elements on that parts list table.

So the three columns there with the missing headers.

So pause the video, have a go.

Right, so identify the three missing elements on the parts lists.

So the first one was the part number.

Then we had quantity, and then we've got material.

Well done if you identified those three missing elements of that parts list table.

Now let's go into that in a little bit more detail.

So part number: a number that you assign to one component in your design.

And we will look at something that makes that part a little bit more clear in a bit.

Part name and description, so a name or description of the part for reference.

It just makes it a bit more clearer.

So when you pass your parts list onto your kind of manufacturer or you move into that manufacturing phase, having that name and then a description of the component can just make it really clear what part you are actually talking about.

The quantity, so the amount you need of that specific component.

The material, the specific material name.

And you include dimensions in this as well, so referring back to your orthographic projection and kind of your design notes regarding that.

The source: where the material is being sourced from.

Where is it coming from? Is it coming from a shop? Is it coming from online? Is it coming from the technician's room in design and technology department? Is it coming from home? And then we have notes and comments as well.

So space for further details such as cost and stock form limitations.

So that's a really important point.

So not every material comes in every size and every different shape that we build.

So, for example, corrugated cardboard, which is what we are going to talk about in our design, it comes in sheet form and it usually comes in kind of five millimetres, 10 millimetres, 15, et cetera.

So it's really important to be aware of the materials that you have said that you're going to make your components out of.

But what you can get them in, are they available in the sizes and the shapes that you need in order to manufacture the component out of? So a little bit of research might be needed at that stage.

Okay, so a parts list along with your orthographic projection, if you've completed one, is lots of information that manufacturers need to kind of move onto that phase and to complete the manufacturing stage.

So here is an orthographic projection.

At the very top there, you can see there is a small example of a parts list.

And sometimes parts lists can be quite a large table and it might not fit onto your orthographic projection.

So it can be a separate document.

It doesn't have to be on the actual drawing of the orthographic projection.

So we've got the parts list table at the top there that we've managed to squeeze onto the top.

Then we've got our plan projections, so looking down from the top at that component.

We've got the front projection, we've got our dimension lines, we've got our isometric view, we've got our side projection, and then we've got a title block which gives us more information about kind of dimensions and the component that we are looking at.

Okay, so kind of referring back to that first column in our parts list table, which is part number, we can use something called balloons, okay? So we're not talking, you know, kind of party balloons here, although you should be able to see in a second why they are called balloons.

But balloon symbols can be used to identify parts in a drawing.

So what they do is they connect a specific component on the drawing to its corresponding part or corresponding entry in the parts list.

So here we go.

There's a balloon symbol, and it's got a reference number.

It's got a part number inside the balloon part.

So if we look at our isometric view here that is taken from our orthographic projection, we can see two balloon symbols with two reference numbers in them.

So our kind of balloon number one there is pointing at that section and balloon number two is pointing at that section.

It's saying that is part one, that is part two.

So name this symbol.

Time for a check.

Name the symbol.

What is that symbol called? Okay, so that symbol is called a balloon symbol.

And well don if you wrote a balloon symbol with a reference number as well or with a part number, okay? That's adding extra detail.

And all of that is correct.

Well done.

Right, time for a task.

So you should be able to see an illustration of a bicycle on the screen.

And first part of this task is to identify five separate components on that bicycle using a balloon symbol.

So an example has been given, so there we go.

We can see a balloon symbol with a reference number one inside and it's pointing at a tyre.

So that is one component that I have identified on that bicycle.

What I would like you to do is identify four more components on that bicycle and draw the balloon symbol onto it, pointing at the component that you're talking about.

Okay, part two of this task.

Once you've identified those five separate components, and don't forget, number one has been done for you.

So part number one, part name will be tyre.

And then what I would like you to do is fill in the parts list table for those five components that you've identified.

So part number one is the tyre.

So part name: tyre.

And then quantity.

How many tyres do you need for a bicycle? What would be the material that that tyre is made out of? And then do you need to write any notes and comments in the, pointing out any kind of thoughts or extra details? So identify five separate components on the bicycle, one has already been done for you.

And then use those balloon symbols with a reference number.

And then once you've done that, construct this parts list table and complete it, fill it in for the five separate components that you have identified.

Okay, good luck.

Okay, so your answer could have been, so we've done number one already, haven't we? So the balloon symbol, the reference number one is pointing at a tyre.

So my second component, I've gone for the saddle.

Now a saddle can be made, it's made of lots of different components, so I've gone for the outer covering on the saddle.

My third component is the main frame.

My fourth component is those handlebar grips, and it's difficult to see on that illustration.

It could be the brakes, it could be the actual full handlebars.

But I've gone for the handlebar grips and when I move to my parts list table, I'll be able to kinda specify that.

And then I've gone for the pedals.

So there are five components identified on that drawing using balloon symbols with a reference number.

Let's move to filling in our parts list.

So here we go.

We've got the first column, part number, 1, 2, 3, 4, 5.

And they correspond to the drawing with the balloon symbol's part name.

So we've got tyre, saddle, outer cover, mainframe, handlebar grip, and pedal.

Then I've put the quantity needed for each, you know, component.

So, usually, for a bicycle you will need two tyres, you will need one saddle outer cover, you will need one mainframe, you would need two handlebar grips, and you would need two pedals.

And then I've identified a material for each of those components.

And then I've wrote a comment about that component.

For example, would spare tyres be needed? So is two the final number or do you think more tyres would be needed? And then maybe an alternative materials might be used, okay? So for the saddle outer cover you can use leather, but maybe a synthetic leather could be used to reduce costs.

And the same with the pedals.

I've put nylon for pedals, but they could be made out of aluminium.

Same with the main frame.

It could be made out of mild steel instead of aluminium to reduce costs.

Well done if you had a go at that.

Our second lesson outline is creating a parts list.

So below is a design for an accessible herb planter and we have some details about the manufacturing that we've already figured out in the designing phase.

So to create this design, we're gonna use corrugated cardboard.

That cardboard is going to be five millimetres thick.

The separate components are gonna be laser cut and the construction method is gonna be lamination.

So lamination is when we layer things up together to create that 3D product.

Now let's start at the beginning.

If we've got a design, what's the first thing we're gonna do in order to create our parts list? So the first thing we're gonna do is identify those separate components.

So what are all of the individual components that we need to make our final product? And we're gonna use those balloons symbols.

We're gonna use the balloon symbols to help us do that.

So as you can see, there is the isometric view, that is this drawing of our design.

And we've got a balloon symbol pointing towards a part at the back and a balloon symbol pointing towards a part at the front.

Now that isn't telling me enough information, I think, about those individual components.

So it's always handy to take information from your orthographic projection.

So as we can see here, there is part one.

That is a front projection from our orthographic projection.

And then there is part two.

So that is making that a lot clearer to (indistinct).

Time for a check.

A component is.

A single part of a larger product, a finished product, or an amount? Pause the video, have a go.

A component is a single part of a larger product.

So a component is one individual part of a larger product.

The second kind of step in creating our parts lists is kind of referring back to our orthographic projection.

Again, it's really important to have that orthographic projection 'cause it really helps us put our parts list together and it really supports the manufacturing stage.

So use an orthographic projection to get a clear understanding of the dimensions needed for each component.

So I'm gonna look at my dimensions now, my orthographic projection.

So there's part one that we identified in that last step with the balloon symbols and there is part two.

So looking at that, I know that my corrugated cardboard, it has to be at least 300 millimetres by 150 millimetres.

And that is the absolute minimum size that those sheets need to be.

And that is not even considering any tolerances and things like that.

So that is the absolute minimum size of the sheets of corrugated cardboard that I need.

And I've said I'm gonna use five millimetre thick corrugated cardboard too.

So what can be used to support knowledge about component dimensions? Is it an isometric view? Is it an orthographic projection? Is it a perspective view? Is it an exploded drawing? Have a go at that.

So as I've said quite a few times, it is an orthographic projection that can be used to support a parts list, full stop, but very specifically, the dimensions for the individual components.

Okay, the third part will be to start constructing that parts list table with the relevant headings and the correct amount of rows needed for the correct amount of components that you've identified.

So we only identified two components in our design and then we've constructed the table, we've added the name of the design, so the accessible herd planter, and then we've got part number one and two and we've got part name, quantity, material, source, notes and comments.

Now we're gonna fill in that table.

So here we go.

We've got part number one.

And we've give it a name, which is the solid back piece.

Now I have worked out if I'm using five millimetre corrugated cardboard, how many layers am I going to need to make sure I've got the right dimensions for my final product.

So I've worked out that I need 13 pieces of part one and I need 40 pieces of part two.

So my quantity is really important there and I've double checked my maths and gone back to my orthographic projection and just made sure that that is really, really sound.

Okay? So material, five millimetre corrugated cardboard.

Where is that coming from? I'm gonna buy it from a cardboard supplier.

And then in the notes and comments, I've made some comments maybe about checking the quality of the cardboard.

Cardboard obviously isn't the hardest material in the world.

It can get damaged quite easily, especially when it's in single sheets.

So kind of looking at the surface of that corrugated cardboard before starting to manufacture and kind of making sure that, you know, doing a test on the laser cutter with that corrugated cardboard.

And make sure you always monitor that laser cutter, especially with corrugating cardboard because it is quite flammable.

Okay, so we've got our parts list and it's filled in.

I can clearly see I've got two components there that need manufacturing.

I've got the amount or the quantity of each component.

I know what it's gonna be made out of and I've got some notes and comments to inform further steps.

Last part, once you've completed your parts lists, it would be wonderful to add that to your orthographic projection.

And then you've got all of that information there ready to go or to pass on to somebody else in the manufacturing team.

Once again, if you can't fit it onto the drawing, it's fine as a separate document.

But on that drawing there with the parts list, there's a lot of information there to actually manufacture the components needed to make that final design.

Okay, time for a task.

Okay, so you're gonna have a go at creating your own parts list.

So you're gonna use a previous design that you have created and you're going to do it in the same way that we just went through, okay? So the first thing you're going to do, you're going to use those balloon symbols to identify the individual components on your design and then you're gonna go in and construct that parts list table.

So just to be very clear, the first step on task number one is using a previous design that you have created, identify the separate components using those balloon symbols and those reference numbers, the part numbers, and you can do that on a CAD programme.

You can do that with sketching by hand.

It's quite open at this stage.

And there's a little reminder for you what a balloon symbol looks like and how it could look on your drawing.

Okay, the second part to that task is using a parts list table, populate it, okay, create your parts list.

So using the table below, write a parts list for the design, listing the separate components.

So once you've identified your individual components on your drawing using balloon symbols, you're going to populate this table with the information that you would need in order to manufacture your final design, okay? So we've got our part number down there, 1, 2, 3.

You might have more, you might have less.

And then the part, give it a part name, give it a short description.

Say how many you need of those individual components.

So state the quantity, then the material, the source, where you're getting it from, and any notes and comments that might be needed.

So your answer could be.

There is the drawing, okay? And that could be done on CAD.

Remember, it could be done by hand.

And you can see the balloon symbols with the reference number on there.

So we've got a balloon symbol pointing at a component at the back saying that is part number one.

Then at the front we've got part number two.

And at this stage you can add any kind of front projections that you think is gonna make those individual components more clear.

And then you should've filled in your parts list.

So as you can see we've got our parts list, we've got our title at the top, we've got our part number down the side.

You might have more parts, you might have less parts, and we've given it a part name.

And you can also add a description in there or you can, you know, have both, whatever is gonna kind of make it a bit more clear to you or to somebody else who is manufacturing that product.

The quantity of each component, very important.

The material that is going to be used.

Then we've got the source.

Where are we getting it from? And any notes and comments that you feel are relevant.

So well done if you completed that task.

So let's have a summary for this lesson.

So we created a parts list in this lesson and we focused on the material area papers and boards.

So a parts list is a structured document and that outlines those individual components that are needed to assemble a full final product.

And when we use a parts list, it really enhances the accuracy and the efficiency and the cost effectiveness in manufacturing and it really helps prepare you for that manufacturing stage.

It makes it very clear what is needed, how much is needed, and when it's needed for, okay? And it's not just for those components that you don't really know much information about, like kind of buying those components in or getting them from somewhere else.

It's for every individual component needed for that final product.

By specifying those quantities, a parts list can really help with identifying errors.

Kind of, you know, figuring out that quantity part on that parts list made me go back to my orthographic projection, it made me go back to my original design and think how many layers do I actually need? How many separate components do I need in order to make that the dimensions that I've said it was going to be? And presenting that parts list in a table keeps it nice and organised.

It's really clear for somebody else to read and it includes all of those details that are needed for a manufacturer or for you to move into that manufacturing stage.

So part numbers, the name, description, the quantity, the material, the source, and then any kind of further notes.

So a parts list along with an orthographic projection can give manufacturers and can help in that manufacturing stage so much.

It has all of that information needed to make that stage, that manufacturing stage, which can be very complicated and can cause lots of delays, it can help with ensuring that that goes as smoothly as possible.

Okay, thank you for joining me today for our lesson on creating a parts list.

And hopefully see you soon.

Thank you.

Bye-bye.