Junichi Yamaoka, Ryuma Niiyama, Yasuaki Kakehi and Yoshihiro Kawahara

Category : GENERAL
By Junichi Yamaoka, Ryuma Niiyama, Yasuaki Kakehi and Yoshihiro Kawahara (Japan)

What did you create?

BlowFab is rapid digital fabrication technology to create hard inflatable products in a short time, which combines laser cutting and blow molding techniques.

These techniques can be used for prototyping various strong inflatable objects such as a foldable furniture, a container, toys, and devices. The finished prototype is strong and can be collapsed readily for storage when not required.

Why did you make it?

In recent years, plastic disposable has become a social problem. Manufacturers are pursuing 3D printing methods for reusable plastic products.

Blow molding, which is a manufacturing method used to make plastic bottles, but a mold is necessary. We combined this blow molding technique and laser cutting with a thermo-reversible plastic. People can create own prototypes rapidly without a mold and reuse objects by heating them again.

How did you make it?

The people create adhesive areas and inflatable areas by engraving and cutting multilayered plastic sheets using a laser cutter. These adhesive areas are fused automatically by overlapping two crafted sheets and softening them with a heater. The people can then create prototypes by injecting air. Objects can be bent in any direction by cutting incisions or engraving a resistant resin. The user can create uneven textures by engraving a pattern with a heat-resistant film.


We used a multi-layered sheet consists of PET, a masking tape and a heat-resistant film. Scale and weight are changed depending on the size of objects. But the inside of the objects is hollow and the objects are lightweight.


Junichi Yamaoka
Ryuma Niiyama
Yasuaki Kakehi
Yoshihiro Kawahara


  • Satoshi Yoshiizumi
    TAKT PROJECT Inc., Representative
    Designer/Creative Director

    I think that creating a method of creation is equivalent to designing the ways in which things exist.

    The hardness of the blow-molded object and the easily controllable nature of the molding suggests to me the possibility of the birth of a new way of things existing.

    It is the kind of work that makes one want to imagine how it could be developed beyond the prototyping stage and into a product.