TRY THIS! Greeting Card Assembly

TRY THIS!

Design a greeting card and then design a system for making the cards that maximizes efficiency. You can create any kind of card: holiday, birthday, thank you, congratulations, get well, sympathy, thinking of you, ...

What You'll Need

There are two ways to approach this challenge - by yourself and with a group of family or friends

Try it Yourself

  • Timer
  • Greeting card design
  • Supplies to make the card
     

Try it with Friends

  • Group of friends
  • Area large enough for everyone to have workspace
  • Timer
  • Greeting card design
  • Supplies to make the card

Check the bottom of the page for supplies and materials you might need along with some links to design ideas.

BE SAFE!

Always check with a parent or guardian before you start a project and make sure it is okay to use materials you find around the house.

A set of hand made greeting cards

Mass-production

Have you ever wondered how the items you use on a daily basis, like your toothbrush or cell phone, were made? Have you ever considered how many identical copies of these exact same items might exist around the country — or even around the world?

Thanks to mass-production manufacturing, items like toys and toothbrushes can be made quickly and cost-effectively. That makes them less expensive and readily available to consumers. This is possible through the use of assembly lines.

Assembly Lines

An assembly line is a manufacturing process where parts are brought together in a series of work stations. Workers and machines at each station specialize in creating a part or adding parts to a semi-finished product. By the end of the line, the product is completed, checked for quality, and can be packaged for shipment.

Assembly lines are now used to create almost every product you can name. Cars, phones, appliances, toys, clothing, shoes, paper, pencils, computers, Christmas cards...

Some types of assembly lines rely entirely on machines while others need a combination of machines and human workers to mass-produce a product.

One-person Assembly Lines

Assembly lines optimize the flow of raw materals and parts, and the use of machines and workers.

Optimize: (verb) To make the best use of a situation, opportunity, or resource.

The assembly line method can also be used to organize one person's work. Instead of the unfinished product moving from place to place, tasks are split-up and ordered to reduce the amount of time it takes to create a finished product. Materials, tools, and tasks are organized to minimize time lost looking for things or switching between different kinds of work. The following video shows how one woman applies this method to create a set of matching thank you cards.


Note that several tasks, such as cutting smaller pieces, were completed before the video starts. Preparing similar pieces at the same time for later assembly is common when using the assembly line method by yourself.

Getting Started

For this challenge you will try using an assembly line to create several matching greeting cards.  For this activity, you'll want a card design that requires multiple steps to make. Steps could include actions like:

  • Cutting, folding, and preparing the card base
  • Coloring, painting, or preparing pieces to add to the card
  • Cutting pieces to attach to the card
  • Glueing pieces together
  • Using stamps, markers, etc. to add final details
  • Checking the finished card for mistakes

Try it Yourself:

Your goal: Design an assembly plan that will reduce the the average time it takes to create identical greeting cards by 25%

Time yourself creating two cards from scratch. Don't prepare any of the pieces ahead of time and complete all the steps to create a finished card in order.

Now think about all the steps and decide which ones can be grouped together. For example, can all the coloring be done before anything is cut-out? Make an assembly plan for how you can reorder your work to increase efficiency.

Time yourself creating four more cards. This time, use your assembly plan.

If it takes 30 minutes to create 2 cards from scratch and 45 minutes to create 4 more cards using your assembly plan, how much did your plan improve efficiency?

30 minutes ∕ 2 cards = 15 minutes/card

45 minutes ∕ 4 cards = 11.25 minutes/card

(11.25 minutes/card) ∕ (15 minutes/card) = .75

Your assembly plan allowed each card to be completed in 75% of the time it took before - an increase in efficiency of 25%

Try it with Friends:

Your goal: Design and set-up an assembly plan that allows you and your friends to make at least 25% more cards in 30 minutes than you can make individually in 30 minutes.

Explain your design to your friends. Then, set a timer for 30 minutes. Everyone should try to make as many complete cards as they can in 30 minutes. When the timer goes off, you can let people finish what they are working on, but only count those cards completed before the timer went off toward your goal.

Now divide up the group so that each person is responsible for one step in the assembly process. Don't forget to set-up the workspace so that everyone has the tools they need and can easily move pieces between them.

Set the timer again for 30 minutes and see how many cards everyone can finish in that time working together on an assembly line.

Imagine you are working with 5 friends. Working separately, you can complete 8 cards in 30 minutes. Working together in an assembly line you can create 12 cards. What percentage increase in production did your assembly line create?

12 cards ∕ 8 cards = 1.5

Your assembly plan resulted in a 50% increase in production!

A few notes to consider:

  • Teams of all sizes will work for this activity, but a team of at least 4 people will provide a better challenge.
  • As a team, choose the type of greeting card you want to make (Thank you card, holiday card, get well, etc.) ahead of time so that people can come up with designs for the group to consider.
  • Choose a design that requires at least as many steps to complete as you have people on your team.
  • You will likely have to gather supplies for some designs, so it helps to plan ahead in choosing a design(s).
  • Try the challenge more than once - choosing a different design each time. Each team member can take charge of setting up the assembly line for her design.

QUALITY COUNTS!

Remember – just like in an industrial assembly line, it’s important for every card to look the same. After the 30 minutes are up, you’ll want to look over the completed cards to check for any differences. If any card is missing parts or otherwise not consistent with the others, it can’t be counted toward your total. Because these are handmade cards, slight differences are okay as long as the overall design remains uniform across the entire set of cards.

Try this next!

If you enjoyed this activity – take it a step further with more design challenges!

  1. If you were to add more people to your greeting card making assembly line, how would that impact the number of cards you could make? Is there a limit to the number of people you can add to your assembly line before it starts working less efficiently?
  2. Does the ideal number of people for your assembly line (the number that produces the most cards in 30 minutes) change with the design?
  3. If you divided construction of your card design into more steps, would that increase or decrease the number of cards your team can complete in 30 minutes?
  4. If you moved people around in the workspace, would that increase or decrease the number of cards your team can complete in 30 minutes?

What other tasks in your life could be made more efficient with an assembly line?

Supplies and materials

Here are just a few of the supplies and tools you might need to construct your greeting cards:

  • All kinds of paper
  • Stickers
  • Ribbon or string
  • Beads
  • Popsicle sticks
  • Envelopes*
  • Scissors/paper cutter
  • Markers or pens
  • Crayons/colored pencils
  • Stamps & ink
  • Punches
  • Glue

*You can use pre-made envelopes or include construction of envelopes as part of your design. If you include the construction of envelopes in your design, you may want to add 10 minutes to the timer when working with a group of friends.

Although we recommend coming up with your own fun greeting card design, there are plenty of resources online to get some ideas. Type keywords like “homemade greeting card” into your favorite search engine and check out some of the articles and videos that come up.  Here are some tips and tricks for making homemade greeting cards

Although many articles and videos recommend specialty tools, you can create really wonderful cards with just paper, pen, scissors, and glue.  We look forward to seeing what great designs you create!

Try Again!

Check out other EngineerGirl design challenges!