Produced by Soujiro Matsui

With a plunger, I automated pendulum motion for a baby cradle.

Judges' Comments

President & CEO of Meiwa Denki
Nobumichi Tosa

The whole process from idea generation, production, and safety inspection are portrayed with such sophisticated narration. “Essence of the art of design and manufacturing” is perfectly represented in this masterpiece. On top of everything, “the love for our grandchildren” illustrated throughout this project touches our heart, such as measuring the magnetic force and so on.

Produced by kit-dam

I made a robot that moves itself by shifting the center of its spherical body.

Judges' Comments

President & CEO of Meiwa Denki
Nobumichi Tosa

Instead of using the linear motion of Solenoid as it is, the idea of “circuitous rotating driving force” by replacing with “shifting the center of gravity” is exceptionally fantastic. Absolutely looking forward to seeing 2^nd / 3^rd generation of this product with improvement in control accuracy and, of-course, with more joyful movements.

Produced by Akira Hase

I accomplished this star-shaped engine using a solenoid. Although a video I found is the model for this piece, there are a lot of my original additions (Electric circuits, etc.). Please enjoy the video.

Judges' Comments

President & CEO of Meiwa Denki
Nobumichi Tosa

Very detailed and precise mechanism produced by designing circular motion using a direct Solenoid. I can easily feel the excitement and joy of the producer when the star-shaped solenoid engine successfully has finally rotated.

Produced by Hiroshima National College of Maritime Technology, Craftmanship Club

Generally eraser-supercar wheels are pushed by a knock-type pen, but we made it so we can push them with a solenoid and switch. It is a stable square-shape and very simply operated. Even small children could enjoy this with their friends.

Judges' Comments

President & CEO of Meiwa Denki
Nobumichi Tosa

Interesting idea to “use Solenoid for playing game.” Simple usage of Solenoid, yet highly possible to launch this product to the market. Please do collaborate developing a new product with the “BOXY pen” producer !

Produced by National Institute of Technology Kagawa Collage, Department of Electro-Mechanical Systems Engineering, Misaki Laboratory

Our laboratory is working on the development of an auto-music playing solenoid device with Suzuki’s ToneChimes and stone instruments made of Kagawa’s unique Sanukite stone. It plays music when the solenoids receive a pulse signal from a note on a computer through a versatile MIDI signal output. We worked the hardest on reducing the noise of the solenoids’ motion, not using a muffling type solenoid. With our trial and error, we achieved minimizing the noise so that it does not interrupt the play.

Judges' Comments

President & CEO of Meiwa Denki
Nobumichi Tosa

Sanukite makes such a great sound! This product takes full advantage of Solenoid’s capability as a percussion instrument.

Produced by Ittoku Kuwazu

My invention is this very strange robot that runs on the table freely. It moves by the oscillation of a pull solenoid. The oscillation is made by sending an ON-OFF rectangular wave to a pull solenoid, from a plunger with a spring attached. Its battery is lithium polymer and the size is 18×50×22mm. It’s an easy-made solenoid robot you can build within a day.

Judges' Comments

President & CEO of Meiwa Denki
Nobumichi Tosa

Very interesting idea to use Solenoid in the mechanism often seen with motor vibration.Such a compact product is very cute being compiled with the printed board.

Produced by Yasuyuki Suzuki

For this item, I used solenoids, a switch, battery and 3D printed pen. There is a magnet inside to pull the parts together instead of a screw, so I could easily take them apart. I used solenoids for both the pushing-out side and pulling-in side.

Judges' Comments

President & CEO of Meiwa Denki
Nobumichi Tosa

I can feel the passion of the producer from this “huge BOXY” crafted by 3D printer. Please do collaborate to develop a new product with female Team “Sorenoidon” from college of technology.

Produced by Sweet electronics

Marshmallow Catapult is a marshmallow shooting machine. It aims its target with a joystick, and shoots out a marshmallow when you hit the button.

Judges' Comments

President & CEO of Meiwa Denki
Nobumichi Tosa

The World’s 1^st Marshmallow launcher. Too foolish to be true. In fact, very entertaining so may be able to release this product on market. This products can be considered as a party supply if it uses “kaki-no-tane”, a popular Japanese snack for party, instead of Marshmallow.