From Guest Blogger Emily Folk: Can 3D Printing Be Considered a Green Technology?

Manufacturing may find a greener alternative in 3D printing. It’s no secret that traditional manufacturing methods aren’t exactly eco-friendly. As 3D printing becomes more prevalent, some hail it as a more sustainable choice. But what about it makes it greener?

While some questions remain regarding its sustainability, 3D printing has several facets that could make it a more environmentally sound choice. Not all manufacturing processes are replaceable with 3D printing, at least not with current technology. But even if it replaces a small portion of production, it could have significant environmental impacts.

Waste Reduction

3D printing is sometimes referred to as “additive manufacturing” because it creates objects by adding material layer by layer. In contrast, traditional manufacturing is subtractive, taking material off to form an object. Consequently, 3D printing only uses what it needs, whereas subtractive methods generate waste.

Another notable element of 3D printing is that it can use recycled waste from other sources. You can melt down plastics into raw material again. Printers can then use this reclaimed plastic without creating any more waste.

Energy Efficiency

Additive manufacturing may also be more energy-efficient than its counterparts. Printers can generally create objects faster than traditional methods, which cuts down the runtime and uses less energy. With new technologies like Bowden tubing, 3D printers are continuing to grow faster and more energy-efficient.

The fact that 3D printers use less material also adds to their efficiency. All of this means that in their current form, 3D printers are far more efficient than other manufacturing techniques. But since it’s still a relatively new technology, the effects of widespread, large-scale use are difficult to predict.

Filament Material

While the plastics most commonly used in 3D printing are reusable, there are also other eco-friendly options available. A growing number of companies are releasing sustainable materials such as filaments made from hemp or coffee grounds, or even wood.

The availability of biodegradable filaments means that not only is the printing process more sustainable, but the finished products are as well. By making it easier to produce eco-friendly parts and products, 3D printing can reduce reliance on harmful, wasteful materials.

Logistics-Related Emissions

One of the most significant advantages of 3D printing is that it decreases the need for long-distance shipping. The logistics chain can generate a lot of emissions. Parts and finished products usually have to be transported over long distances, meaning more trucks are on the road more often, releasing lots of exhaust.

Because 3D printers are generally small, fast and quiet, companies can produce items closer to where they’re sold. Some businesses could even make their goods in-store. As home printers become more affordable, customers could print their own products from plans they purchase online, getting rid of the logistics chain altogether.

Potential Concerns

There are still a few concerns about the sustainability of 3D printers.

By making it easy for people to make plastic items, they may contribute to an increase in single-use products. People could use 3D printers thoughtlessly, creating piles of junk items just because they can.

In addition, researchers have found that some 3D printers release tiny plastic particles, which could be harmful if an area isn’t well-ventilated.

Moving Forward With 3D Printing

Proper and careful use of 3D printers can take care of most of the associated risks. The companies and people using them should be sure to do so only in well-ventilated areas to reduce the risk of inhaling any particles. Individuals using these printers in their homes should be careful about not creating wasteful products.

3D printers can be a sustainable technology if people use them properly. In excess, they can lead to waste. But in moderation, they can decrease it. If people use them only to create items they need or will use, 3D printers can be a far more eco-friendly option than traditional manufacturing.