'In our latest work, we have shown that wood-based robotic grippers can overcome the limitations of traditional actuators and manipulators.'
"Wood has excellent mechanical properties, natural deformation, is available in large reserves, and is relatively cheap. In our latest work, we have shown that wood-based robotic grippers can overcome the limitations of traditional actuators and manipulators," said Ching in aResearchers Tan Swee Ching , Qu Hao , and Bai Lulu , have developed a wooden robotic gripper.The researchers used 0.5 mm thin maple wood from Canada to make the gripper.
The wood pieces were then shaped into the structure of a gripper using molds at 70 degrees Celsius . When exposed to a relative humidity of 95 percent, the hygroscopic gel absorbed moisture making the wooden gripper stretch and open outwards. The wooden gripper was tested under varying light intensities, causing the gripper to bend inwards as the moisture-absorbing gel lost water at around 42°C and achieved significant bending at about 57°C. The gripper showed durability and stability after undergoing 100 actuating cycles, indicating its suitability for long-term use.The researchers also used their wooden gripper to lift objects at high temperatures.
The wooden robotic hand and grippers showed skilled interactions with objects, making them suitable for tasks like grasping and holding. Their reversible hygrothermic property makes them potentially useful in fire rescue scenarios for rescuing trapped objects.
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