Japanese designers have created what they claim to be the world’s first viable 3D printed road bike.
The DFM01 Ouisa started as an experimental project by Triple Bottom Line design studio and then DMM.make AKIBA, a hardware manufacturing space in Tokyo, joined to provide support.
Sections of the frame are made from titanium using selective laser sintering (SLS). Essentially, this means that a laser is used to form a metal structure from powdered material.
“As you can see DFM01 consists of several parts,” says Triple Bottom Line’s Satoshi Yanagisawa. “The head, seat cluster (we called junction) and entire bottom section (bottom bracket, chainstay, and lower seatstay bracket) are made from SLS titanium. Other parts (top, bottom tube and both seatstays) are market available conventional carbon tube.”
The DFM01 can be customised for each individual rider.
“This is a key factor of this frame,” says Satoshi Yanagisawa. “Basically, our geometry generating system, currently under development, allows us to create a perfectly optimized frame geometry from an individual user's information (height, arm and leg length, flexibility, and so on). The system takes those numbers then creates optimised 3D geometry. Obviously, the majority of bike manufacturers are doing this phase – creating different frame geometries – by hand at the moment.”
This is the first prototype of the DFM01 and the designers say that the complete bike weighs about 7kg when fitted with high-end components like a Shimano Dura-Ace groupset, a fork, bar, stem and wheels from Enve, a Ritchey seatmast on top of an integrated seatpost, and a Fizik Arione saddle.
The designers are currently assessing the exact lifespan of the finished product with a view to making the DFM01 available to the public. There’s no timescale for that yet, nor any price set.
Triple Bottom Line plan to bring the DFM01 to the London Design Festival this September.
3D printing has been used in bicycle manufacture for a while now. We showed you a video of Charge 3D printing titanium dropouts a couple of years ago, for example.
However, when engineering students at Carleton University in Ottawa, Canada, showed their 3D-printed bike earlier this year, it immediately failed thanks to a part that should have been solid having been made hollow.
For more info head over to www.triplebottomline.cc.
Mat has been in cycling media since 1996, on titles including BikeRadar, Total Bike, Total Mountain Bike, What Mountain Bike and Mountain Biking UK, and he has been editor of 220 Triathlon and Cycling Plus. Mat has been road.cc technical editor for over a decade, testing bikes, fettling the latest kit, and trying out the most up-to-the-minute clothing. We send him off around the world to get all the news from launches and shows too. He has won his category in Ironman UK 70.3 and finished on the podium in both marathons he has run. Mat is a Cambridge graduate who did a post-grad in magazine journalism, and he is a winner of the Cycling Media Award for Specialist Online Writer. Now over 50, he's riding road and gravel bikes most days for fun and fitness rather than training for competitions.