Skip to main content

3D-printed ‘keystones’ open the door to cheap, sturdy DIY furniture

keystone connectors make furniture with a single 3d printed piece keystones 08
Image used with permission by copyright holder

Back when 3D printing was just kicking off, there was much talk of a future where people could download new furniture designs, print them, and furnish their living rooms with new pieces whenever they pleased. Despite the fact that 3D printing your own custom-designed furniture is totally possible now, it hasn’t really caught on. This is mostly due to the fact that 3D printers aren’t a common household appliance yet, but even if they were, making a full-sized piece of furniture typically requires you to print a boatload of small pieces and snap them together to create something bigger, which isn’t very convenient. 

But who says you have to print the entire piece of furniture? Dutch Studio Minale-Maeda has devised an alternative with “keystones” — a series cleverly-designed connectors that allow you to join pieces of wood together with a single 3D-printed piece to create furniture. This way, instead of burning through a bunch of PLA filament to make a zillion different sections that snap together, you print a single keystone at home and get the remaining materials from your local hardware store.

Minale-Maeda showcased a handful of different keystone designs at Milan’s Salone del Mobile earlier this month, including ones for coffee tables, dining tables, coat stands, and a few more elaborate pieces that use two keystones. Despite the fact that the connectors are designed to work with plain, standard-sized lumber, the finished furniture is fairly attractive when fully assembled.

Recommended Videos

Is this cheaper than building furniture the old fashioned way with screws, nuts, and bolts? Probably not. If you don’t already have access to a 3D printer, it wouldn’t make much sense to drop upwards of $1,000 on one — especially when you can achieve similar results with six bucks worth of traditional fasteners. These connectors might not dethrone nails and screws anytime soon, but the future of 3D printing is definitely looking bright, and this kind of innovative design could push us to rethink how goods are made, distributed, priced, and used.

Find out more here.

Drew Prindle
Former Digital Trends Contributor
Drew Prindle is an award-winning writer, editor, and storyteller who currently serves as Senior Features Editor for Digital…
Roborock’s new smart vacuums will pick up your socks for you
The Roborock Z70 with its arm extended.

Roborock has long built a reputation for producing innovative, useful robovacs, including the Qrevo Curv and the Roborock S8 MaxV Ultra. At CES 2025, Roborock introduced new entries to its already impressive lineup: the Roborock Saros Z70, Saros 10, and Saros 10R. Oh, and did we mention these robots have an extendable arm that can pick up trash, socks, and even lightweight shoes?

The OmniGrip expands the functionality from that of a simple robot vacuum to an in-home helper that removes obstacles that would have previously resulted in a subpar cleaning job. Normally, you would need to pick up anything that gets in the way of the vacuum; even something as small as a sock could be enough to jam the brush or disrupt its path. The OmniGrip is able to lift objects and move them out of the way, carrying them to a predetermined location. It can pick up objects under 300 grams, although its ability to recognize those objects will initially be limited to just small towels, socks, tissue, and sandals.

Read more
Narwal debuts innovative robot vacuum with new mop-cleaning functionality at CES 2025
The Narwal Flow and its dock on a stylized background

Narwal is responsible for some of our favorite robot vacuums, including the premium Narwal Freo Z Ultra, which features a modern aesthetic and ultra-quiet operation. The company’s track record of innovation continued at CES 2025 with the reveal of the Narwal Flow -- an upcoming robot vacuum built with a powerful new mopping system.

The Narwal Flow employs a new type of mopping system (dubbed the FlowWash Mopping System) that actively cleans its rolling mopping plate as it's cleaning your floors. This ensures you won’t be tracking dirty mops across the ground and should result in a better overall cleaning experience. The robot is equipped with both a clean and dirty water tank, allowing it to extract dirty water from the mop while simultaneously rewetting it. This allows the mop to remain in excellent condition without needing to head back to the docking station for self-cleaning.

Read more
Beatbot reveals futuristic AquaSense 2 Series pool cleaners at CES 2025
Beatbot AquaSense 2

The original AquaSense Series was wildly popular when it hit the market in early 2024, and at CES 2025, Beatbot officially revealed its successor, the AquaSense 2 Series. Consisting of three robotic pool cleaners and starting at $1,500, Series 2 models are designed to automate all aspects of pool cleaning. The high-end AquaSense 2 Ultra even incorporates AI technology into the mix, promising a superior clean.

AquaSense 2 is the most affordable of the trio at $1,499, yet the three-in-one pool cleaner is still pretty well-rounded. It can clean floors, walls, and the waterline, and can run for up to four hours before needing a recharge. Toss in obstacle detection, four unique cleaning modes, and an array of 16 sensors, and it’s well-suited for most pools.

Read more