Japan RepRap Festival
~A World Connected by 3D Printers~
What is RepRap?
RepRap (Replicating Rapid Prototyper) is an open-source 3D printer project that originated at the University of Bath, UK in 2005. Aiming to create 'self-replicating machines,' makers worldwide have shared and improved designs. Many of today's consumer 3D printers trace their roots to RepRap.
Open Source Spirit
RepRap designs are open source, allowing anyone to freely create, modify, and share. This spirit is at the heart of JRRF.
RepRap Official WikiWhat is Japan RepRap Festival?
Japan RepRap Festival (JRRF) carries on the spirit of RepRap as an annual celebration where Japan's 3D printing community comes together. From DIY machines to the latest commercial printers, it's an interactive event where you can see, touch, and experience real machines.
Real Machines
See and touch real working 3D printers, from DIY to latest models
Community
Makers, companies, and beginners gather to exchange information
Experience & Sales
3D scanner experience and printed works sales also available
History
The 1st JRRF was held in June 2025 at Tokyo Ryutsu Center Hall C, welcoming over 1,500 visitors and 77 booths, ending in great success.
In 2026, we're expanding to Hall E (approximately double the space) for an even bigger 2nd event.
Meet the Organizer
Yuto Horiuchi (堀内雄登)
JRRF Founder ・ Representative Director, 3D Printer Lovers Association
A 29-year-old office worker at a foreign manufacturing company who describes 3D printing as his "hobby." Yet the scale of this hobby is extraordinary—he operates over 20 3D printers at home. He organized JRRF 2025 as an individual with just three months of preparation, drawing over 1,500 visitors.
Read the full interview