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— Rapid and consistent turning of running legged robots on surfaces with moderate friction is challenging due to leg slip and uncertain dynamics. A tail is proposed as a method to effect turns at higher yaw frequencies than can be obtained by differential velocity drive of alternate sides. Here we introduce a 100 mm scale dynamic robot-OctoRoACH-with(More)
— Mobile microrobots with characteristic dimensions on the order of 1cm are difficult to design using either MEMS (microelec-tromechanical systems) technology or precision machining. This is due to the challenges associated with constructing the high strength links and high-speed, low-loss joints with micron scale features required for such systems. Here we(More)
A teletaction system uses a tactile display to present the user with information about texture, local shape, and/or local compliance. Current tactile displays are at and rigid, and require precise machining and assembly of many parts. This paper describes the fabrication and performance of a one-piece pneumatically-actuated tactile display molded from(More)
— This work presents the design, fabrication, and testing of a novel hexapedal walking millirobot using only two actuators. Fabricated from S2-Glass reinforced composites and flexible polymer hinges using the smart composite microstruc-tures (SCM) process, the robot is capable of speeds up to 1 body length/sec or approximately 3cm/s. All power and control(More)
This paper discusses two processes for rapidly prototyping micromechanical systems: first microassembly, and second, laser cutting of thin sheets and folding. Sub-millimeter rigid blocks can be dextrously manipulated using two 1 DOF fingers and an XYZ micro-positioning stage. Algorithms for micro-part manipulation use open-loop compliant grasps combined(More)
Geckos are exceptional in their ability to climb rapidly up smooth vertical surfaces. Microscopy has shown that a gecko's foot has nearly five hundred thousand keratinous hairs or setae. Each 30-130 microm long seta is only one-tenth the diameter of a human hair and contains hundreds of projections terminating in 0.2-0.5 microm spatula-shaped structures.(More)
—DASH is a small, lightweight, power autonomous robot capable of running at speeds up to 15 body lengths per second (see video). Drawing inspiration from biomechanics, DASH has a sprawled posture and uses an alternating tripod gait to achieve dynamic open-loop horizontal locomotion. The kinematic design which uses only a single drive motor and allows for a(More)