{"id":3977,"date":"2021-11-05T05:45:00","date_gmt":"2021-11-05T05:45:00","guid":{"rendered":"https:\/\/ultimakerstage.wpengine.com\/learn\/"},"modified":"2023-05-19T06:52:00","modified_gmt":"2023-05-19T06:52:00","slug":"3d-printing-and-the-circular-economy","status":"publish","type":"post","link":"https:\/\/ultimaker.com\/ja\/learn\/3d-printing-and-the-circular-economy\/","title":{"rendered":"3D printing and the circular economy"},"content":{"rendered":"
\"3D<\/figure><\/div>\n

3D printing and the circular economy<\/h1><\/div><\/div><\/section>\n

Countries have been gathering at the COP26 climate change summit in Glasgow to agree how to slow the global rise in temperatures. 45% of global greenhouse gas emissions come from the ways that we produce and consume our products and food.\u00b9 The way we make and use things needs to change \u2013 but what part can 3D printing play?<\/p><\/div>\n

Introducing the circular economy<\/h2>\n

According to the charity, The Ellen MacArthur Foundation, the circular economy is a model in which \u201cour throwaway economy [is transformed] into one where waste is eliminated, resources are circulated, and nature is regenerated\u201d.<\/p>\n

It\u2019s based on the concepts of nature that have sustained life for billions of years. There is no waste. Instead, waste becomes food, energy comes from the sun, and organisms break down into the soil at their end of their lives. Human societies operate very differently, wasting resources and degrading the ecosystems we all rely on for life.<\/p><\/section>\n

\"Video<\/figure>
<\/div>\n<\/path>\n<\/path><\/svg>\nWatch the video<\/span><\/a><\/div>\n

As a team of makers and designers working to enable people to produce what they need, where they need it, this got us thinking about the ways 3D printing is being used to make the circular economy a reality.<\/p>\n

Efficient small-batch production<\/h2>\n

Around 40% of all plastic products are thrown away within one month.\u00b2 While plastics are the basis of many essential products, it\u2019s important to ask the question, do we need it all? And so much of it?<\/p>\n

Part of the problem is that plastic products and parts are typically produced in large volumes via injection molding, to make the production cost effective. Once the mold is ready, the manufacturer is committed to making hundreds of thousands of copies of it to justify the investment. If the design of the product turns out to be flawed or unpopular, that creates a lot of waste.<\/p><\/section>\n

\"3D<\/figure><\/div>\n
A batch of adapter plates for ZEISS microscopes, printed on an Ultimaker 3D printer<\/div><\/div>\n

With 3D printing, small-batch production<\/a> is much more cost effective than other production techniques and you only produce what you need.<\/p>\n

So, when you need to update a design or discontinue a product, there\u2019s no additional waste built into the manufacturing.<\/p>\n

Reducing transport and packaging<\/h2>\n

The global transport sector accounts for about one-fifth of global carbon dioxide emissions.\u00b3 And almost 40% of plastic is used for packaging,\u00b2 which primarily exists to protect items during transport.<\/p>\n

If you have access to a 3D printer, creating a new part or prototype doesn\u2019t have to mean a delivery.<\/p>\n

Of course, 3D printing material<\/a> still needs to be produced and shipped. But from one bulk order you can print many parts, cutting out steps in the supply chain that would have otherwise meant trucks on the road or planes in the sky.<\/p>\n

Extending product life with replacement parts<\/h2>\n

Who hasn\u2019t experienced that guilty feeling when throwing something away when only one component is broken?<\/p>\n

Perhaps the most valuable contribution 3D printing can make to a circular economy is the potential of 3D printed parts to extend the life of other products.<\/p><\/section>\n

\"3D<\/figure><\/div>\n
An original part from a packaging machine (right) and the 3D printed replacement (left), which also includes design improvements<\/div><\/div>\n

Repairs, spare and replacement parts, and custom modifications are all possible with a 3D printer. In homes, repair shops, and in industrial settings.<\/p>\n

From repairing production lines<\/a> to garden furniture<\/a>, the potential of on-demand replacement parts is huge. And with some modifications, the 3D printed part often ends up improving performance compared to the original.<\/p>\n

If you want to try it out and don\u2019t have a 3D printer, look up your local hackerspace or makerspace and get involved!<\/p>\n

Recycling materials<\/h2>\n

You may have been thinking up this point, this is all great, but don\u2019t 3D printers use plastic filament? That\u2019s correct. Even with the benefits outlined above, you still need to consider the impact of the material you are using.<\/p>\n

But there are things you can do to reduce this impact, or even make the 3D printing filament itself part of a circular economy.<\/p>\n

As a start, we recommend checking out some of the 3D printing materials out there made from recycled plastic<\/a>. There are several available in the Ultimaker Marketplace<\/a>.<\/p><\/section>\n

\"Ian<\/figure><\/div>\n
Ian Falconer of Fishy Filaments turns old fishing nets into 3D printing materials<\/div><\/div>\n

If you want to take the circular economy to the next level, you can even convert waste plastics<\/a> in your local environment into filament. That\u2019s what Ian Falconer of Fishy Filaments did, turning used fishing nets<\/a> into a 100% recycled Nylon 6 filament.<\/p>\n

If you want to explore more of the big challenges where 3D printing is playing a part \u2013 from post-COVID 19 education to our changing workplaces \u2013 then listen to our podcast, Talking Additive.<\/p><\/section>\n

Listen now<\/span><\/a><\/div>\n

References:<\/p>\n

  1. The Ellen Macarthur Foundation<\/a><\/p><\/li>\n

  2. Plastic Soup Foundation<\/a>\nOur World in Data<\/a><\/p><\/li>\n

  3. Our World in Data<\/a><\/p><\/li><\/ol><\/section>\n