built by UBAYA

Target Environment Locomotion Method
Indoors 3 Wheels
Sensors / Input Devices Actuators / Output Devices
N/A Ball shooter
24-V motor
ball collector
Control Method Power Source
Tethered Battery
CPU Type Operating System
None None
Programming Lanuage Weight
None 35 Kg
Time to build Cost to build
URL for more information
This robot is called "Snow Fighter" as the default name given by the organizing committee of ROBOCON 1999 held in Japan on March 2000. We didn't go to international contest in Japan because we lose in regional selection held by POLTEK ELKA ITS, although we know that our fail was not my false but the judges'. Nevermind, we still feel happy because we were able to build that robot as well as the rule book requirements. The size of this robot is 120cm x 120cm x 120 cm with a weight only 35 kg. This robot can be ridden by a student and driven using a joy stick. We use some relays and electronic control system here. This robot can move back and forward, pivot on one wheel and spinning. It has a velocity up to 5 m/s. The good point of this robot is in it's shooter (used to throw the ball away to the destination). The speed of the ball leaving this shooter is up to 60 km/hr. You can shot the target easily with this robot because you can adjust the shooter frame to reach the desired destination. We use the baseball balls (similar with tennis ball) as the missiles. You can view the construction of this shooter from our pictures. They constructed of two 20 cm bicycle wheels driven by one dc 24-V motor. We use round belt as a power distributor and to get opposite wheel direction. It use two 24-V batteries as a main power supply. We use belt conveyer made from PVC as a ball picker with 232 cm diameter. It's driven by one dc motor (second hand motor from copying machine). It can pick 2 balls in a second. As a ball shooter controller, we use solenoide and one small motor dc to put the ball to the shooter. We can release the ball one by one or 5 balls in one moment using this controller. We hope that next year the organizing committee of ROBOCON 2000 will invite us directly to join their 2000 robot contest. Because if we still have to go to regional contest, we pesimistic that we can do that. Our team consist of three students and one teacher. But we did it with the help of so many students. So in this forum I want to say t

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