Skip to main content

Forget hands — this 3D-printed clock keeps time using nothing but marbles

Marble Clock

Thanks to wearables like the Apple Watch, there’s no doubt that our timepieces are getting smarter and more high-tech. However, if you really want an attention-grabbing way to tell the time (albeit a slightly less convenient one), look no further than student Görkem Bozkurt’s amazing 3D-printed clock. Based on a “rolling ball clock” design by Harley Mayenschein dating back to the 1970s, it tells you where you are in the day courtesy of a smart rail system, some marbles, and a whole lot of 3D-printed components.

Recommended Videos

The clock features three rails: One row for hours, marked 1 to 12; one for 5-minute increments, marked 5 to 55; and one for single minutes, marked 1 to 4. As balls are dumped from one level the next, the number of balls on each level enables you to work out the time using a spot of basic math. It sounds complicated — but it really isn’t after you get used to it. (More instructions on how to tell the time with one of the contraptions can be found here.)

Over the years, we’ve seen a number of projects re-creating Mayenschein’s original clocks, ranging from Lego versions built by fans to new wooden versions made by Harley’s son, Joe. Bozkurt, a physics student at Turkey’s Bilkent University, is the latest to throw his hat in the ring with his 3D-printed version.

Görkem Bozkurt

“When I was a kid, I was fascinated by small moving mechanisms,” Bozkurt told Digital Trends. “Because of this, I was a fan of novelty stores. This is when I first saw the rolling ball clock. It was different than the other kinetic toys I loved watching because it [performed a function by telling you the time.]”

Bozkurt’s model is a nifty reimagining of the original. In an effort to make it more visually appealing, he has added some new features, such as a different elevator mechanism. Best of all? If you like what you see, you can create your own version since Bozkurt has shared the instructions online.

“I share all my projects with the creative commons license, so people can improve them and edit them as they wish,” he continued. “The feedback I get from the community is the most important aspect of this. People can point things out that I’ve never thought about. Everyone who knows how to use a 3D printer should be able to build it. I provided instructions in detail to guide anyone with little to no experience. The build should take around one day to print, and 15 to 30 minutes to assemble.”

Hey, to butcher an old phrase, you’ve got to spend time to make time!

Luke Dormehl
Former Digital Trends Contributor
I'm a UK-based tech writer covering Cool Tech at Digital Trends. I've also written for Fast Company, Wired, the Guardian…
3D printed cheesecake? Inside the culinary quest to make a Star Trek food replicator
a slice of 3D printed cheesecake

Along with jetpacks, holograms, and universal healthcare, one of the great unfilled promises of the Star Trek-style future is the food replicator. Few concepts hold more sway over both the keen foodies always on the lookout for the latest trend in dining and those of us who can barely be bothered to put a frozen pizza in the oven than a box in your home which can create any meal you desire.

You press a button, and the machine whirs and beeps and creates the delicious dish of your choosing, no tedious chopping or marinating or pan-searing required. It’s an idea far too good to be true — but we might be one step closer to this paradisiacal utopia than you think.
How to 3D print a cheesecake
Researchers from Columbia University recently managed to 3D-print a cheesecake, in a process that is exactly as delightful as it sounds. They detailed their discoveries in an article in npj Science of Food, and we spoke to lead author Jonathan Blutinger to learn how they did it.

Read more
AMD is bringing 3D V-Cache back to Ryzen 7000 — but there’s a twist
AMD Ryzen 7 5800X3D socketed in a motherboard.

Great news for AMD fans -- the company has now officially confirmed that it will be bringing back 3D V-Cache in the upcoming Ryzen 7000 processors, as well as future Zen 5 CPUs.

Unfortunately, there is a catch -- it seems that the technology will still not be as widespread as some may have hoped for.

Read more
AMD Ryzen 7 5800X3D beats predecessor, but AMD promised more
amd six new chips reveals ryzen 5800x3d price and release date slide

The upcoming AMD Ryzen 7 5800X3D was just spotted in an early benchmark and compared to the Ryzen 7 5800X. The CPU managed to beat its predecessor by 9%, which is impressive, but not quite what AMD promised just yet.

AMD's initial estimates mentioned performance gains of about 15% in a gaming environment.

Read more