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Managing Material

You will need to plan how much material is required for your project. It is important that you do not waste material as this is bad for the environment but also increases cost of your product.

Cutting materials

Cutting materials

  • Cut materials efficiently to reduce waste.
  • Ensure you cut close to where you have marked out and always to the edge of sheet material/ fabric to save as much of the material/ fabric as possible.
Check, check, cut

Check, check, cut

  • Take into account your tolerance levels and seam allowance so that there is enough to allow you to manufacture the product accurately.
  • Remember the rule: CHECK - CHECK - CUT.
  • Check your marking out twice so you only have to cut once.
Nesting & tessellating

Nesting & tessellating

  • Nesting or tessellating (to tessellate) means to group items together as close as possible to reduce as much waste as possible.
  • This is used a lot when vinyl cutting or laser cutting lots of the same shapes at once.
  • Manufacturers want to reduce waste as much as possible as they want to look after the environment and also reduce costs.
Measuring units

Measuring units

  • Designers across the planet always measure the size of products in millimetres (mm) so that anyone around the world can understand what size the product is.
  • For large pieces we use meters (M).
  • Centimetres (cm) are rarely used as there is more chance of confusion.
SI units

SI units

  • This system of measuring out is referred to as SI units (Systeme International).
  • Sometimes when calculating the area of material centimetres squared (cm2) can be used as it is easier to understand than mm2 or M2.

Managing Material

You will need to plan how much material is required for your project. It is important that you do not waste material as this is bad for the environment but also increases cost of your product.

Marking out materials

Marking out materials

  • A datum point is a point where all the measurements are taken from so the product can be as accurate as possible.
  • It is used a lot for CAD CAM as machines, such as laser cutters, to calculate where they need to cut by using the datum point as a reference point.
Pattern and grain matching

Pattern and grain matching

  • If working with fabric or material with a pattern you will need to consider how it will line up once cut.
  • For example wallpaper needs the pattern lining up with each strip of wallpaper placed on the wall.
  • The same needs to be done with the grain of the wood, if gluing pieces of timber together you would ensure the grain is running in the same direction and is similar to reduce the look of the join.
Jump to other topics
1

Core Technical Principles

2

Paper & Board: Specialist Technical Principles

3

Timber: Specialist Technical Principles

4

Metal: Specialist Technical Principles

5

Polymers: Specialist Technical Principles

6

Textiles: Specialist Technical Principles

7

Designing & Making Principles

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