High school graduate Sam Baumgarten and senior high school student Graham Hughes used 3D printing technology to create a robot driven by the Arduino chip. It is reported that this robot can be controlled by a glove equipped with a bending sensor, which is equipped with three large servo motors to power its 3D printed fingers.
With a 3D printer , an Arduino, and a few other widgets, you can make great things. The results of Baumgarten and Hughes are a good example of this. The ability of this amazing manipulator to demonstrate far exceeds the level we should have in high school students. The device consists of a metal handle with a three-finger grip at its end. In addition, there is a box on the other end of the base containing electronic components. Another completely separate glove with a bending sensor controls the movement of the robot. The user can wear this glove to complete some natural gripping actions, and the robot on the other side can reproduce it in real time.
It is understood that this manipulator has a power sensor mounted on the fingertip of the 3D printing. When the user wears the control glove, it will cause the resistance of the bending sensor to change. These resistor signals are then processed by the Arduino and the corresponding commands are sent to the robot via the Xbee module.
According to the two young makers, one of the most exciting features of 3D printing robots is their tactile feedback. A force sensor mounted on the tip of the mechanical finger sends tactile feedback to the fingertips of the glove, giving the user a very intuitive view of how strong their robot is holding the object. This feature is useful for gripping vulnerable objects because the user can adjust the grip strength very accurately.
Another interesting feature of the 3D printing device is the structure of its joints. The robot has two joints for each finger, but it is driven by only one servo motor. When the lower part of the finger touches the gripped object, the upper finger will also bend downward.
In addition, Baumgarten and Hughes mainly use SolidWorks software to design a CAD model for the robot's fingers, then print it out and assemble it with electronic components.
Baumgarten is planning to enroll in a university computer science course next year. From this project, he is sure to be accepted.
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