3D‐Printed Soft Robotics: A Novel Fold‐Based Design Approach toward Printable Soft Robotics Using Flexible 3D Printing Materials (Adv. Mater. Technol. 2/2018)

Ang, Benjamin W. K.; Yeow, Chen-Hua

doi:10.1002/admt.201870007

Cited by 5 publications

(13 citation statements)

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“…Numerous 3D‐printed actuators and sensors as cost‐effective alternatives for micro‐electro‐mechanical. Recent references show scanners, 11–13 variable focus microscopes, 14 endoscopes, 15 robots 16,17 . based on 3D printing technology.…”

Section: Introductionmentioning

confidence: 99%

Design, preparation, and reliability testing of low‐cost 3D‐printed ABS scanner

Chen

2023

Journal of Polymer Science

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Scanning mirrors can deflect, reflect, and pattern the laser beam. Traditional laser galvanometers rely on deflection motors and mirrors, which are bulky and costly. Micro‐electro‐mechanical systems (MEMS) micromirrors have small size and high integration, but they require long preparation cycles and sophisticated equipment and expensive materials. Polymer scanners prepared by 3D printing technology have the advantages of low cost and rapid preparation, but their reliability needs further study. In this study, a single‐axis electromagnetic scanner was proposed and tested for reliability. The mechanical structure of the scanning mirror is prepared by fused deposition modeling (FDM) using acrylonitrile butadiene styrene (ABS) as material, the radial magnetic field is provided by neodymium magnet set, and laser patterned copper foil serves as the drive coil. The prepared scanner achieved an optical scan angle of 45.2° at a resonant state of 276 Hz. The effect of temperature and humidity on the device reliability is investigated experimentally. Temperature has a significant influence on the resonance frequency and scanning angle of ABS‐based scanner. In addition, the change of relative humidity has less effect on the scanner. The five scanners tested were still working properly after 240 h (more than 2 × 108 cycles) of testing without failures and less than 1.5% frequency drift has been observed.

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Section: Introductionmentioning

confidence: 99%

Design, preparation, and reliability testing of low‐cost 3D‐printed ABS scanner

Chen

2023

Journal of Polymer Science

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“…[ 7 ] This manuscript focuses into TME as it is currently the most widely applied 3D‐printing technology [ 8,9 ] in the field of non‐electronic devices. Due to its ease of use and low cost it is especially appropriate for prototyping; however, recent progress has made it possible to use TME as a manufacturing technology for innovative and feasible smart structures, [ 10 ] actuators, [ 11 ] sensors, [ 12,13 ] batteries, [ 14 ] and metamaterials. [ 15 ]…”

Section: Introductionmentioning

confidence: 99%

Single‐Process 3D‐Printed Triaxial Accelerometer

Arh

Slavič

2021

Adv Materials Technologies

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For thermoplastic material extrusion 3D‐printing functional filaments with electrically conductive, piezoresistive, piezoelectric, capacitive or magnetic properties are developed. The functional filaments result in piezoresisitve static/quasi‐static sensors; however, these 3D‐printed sensors are manufactured in several processes, for example, the creation of highly conductive paths using embedded copper wires or by silver inking. The multi‐process 3D printing of sensors presents an obstacle to smart functional 3D‐printed structures where the sensory element is in situ printed at the location and orientation of use, including the electrical paths. This research introduces a three axial piezoresistive accelerometer where the whole sensor, including highly conductive electrical paths, is printed in the same process of thermoplastic material extrusion. The structural components of the sensor are printed with a non‐conductive polylactide material, the sensory element with a conductive material that has a relatively high resistivity, and the electrical paths with a conductive material that has a relatively low resistivity. As discussed in the manuscript with single‐process sensors, the functional tuning of sensors is as easy as changing the design. The design and manufacturing solutions researched for the triaxial accelerometer can be applied to other 3D‐printed sensors, for example, force sensors and opens up the possibility of a single‐process 3D‐printed smart structure.

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“…Natural organisms have elastic moduli in the orders of 10 4 -10 9 Pa, which is also the range of elastic moduli used to define a soft robot [1]. Such low stiffness materials make soft robots inherently compliant, safe and robust to impact [2][3][4]. Soft actuators, as a vital part of soft robots, have attracted much research interest.…”

Section: Introductionmentioning

confidence: 99%

“…Soft actuators, as a vital part of soft robots, have attracted much research interest. Significant research has been conducted on various motion types for soft actuators: extension, compression, bending, twisting and helical motion [2,3]. Of these, bending is one of the most versatile motion types and has been used for grippers [5,6], soft hands [4,7,8], rehabilitation [3,9] and locomotion [10,11].…”

Section: Introductionmentioning

confidence: 99%

“…Significant research has been conducted on various motion types for soft actuators: extension, compression, bending, twisting and helical motion [2,3]. Of these, bending is one of the most versatile motion types and has been used for grippers [5,6], soft hands [4,7,8], rehabilitation [3,9] and locomotion [10,11]. The soft grippers use soft bending actuators to adapt to the contour of the target objects without requiring complex control algorithms [12].…”

Section: Introductionmentioning

confidence: 99%

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A soft pneumatic bistable reinforced actuator bioinspired by Venus Flytrap with enhanced grasping capability

2020

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Soft actuators, as an important part of soft robotics, have attracted significant attention due to their inherent compliance, flexibility and safety. However, low capacity in force and load limits their applications. Prestored elastic energy can improve the capacity in output force and load of soft actuators. This work introduces a soft pneumatic bistable reinforced actuator inspired by the Venus Flytrap's bistable mechanism that allows for the storage of elastic energy. The proposed actuator consists of two separated 3D-printed actuation chambers that are attached to a central prestressed steel shell to achieve bistability. The pressure triggering the pneumatic bistable reinforced actuator from one stable state to the other is derived and validated by experiments. Further experimental comparisons between the proposed actuator and a dual chamber actuator show that the proposed design significantly improves the block tip force, load capacity and stiffness. The pneumatic bistable reinforced actuator also demonstrates superior performance in the actuation speed and bending angle under the same input pressure. Finally, a two-finger gripper is developed using the proposed actuator, which is demonstrated to grasp and hold various objects.

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3D‐Printed Soft Robotics: A Novel Fold‐Based Design Approach toward Printable Soft Robotics Using Flexible 3D Printing Materials (Adv. Mater. Technol. 2/2018)

Cited by 5 publications

References 0 publications

Design, preparation, and reliability testing of low‐cost 3D‐printed ABS scanner

Design, preparation, and reliability testing of low‐cost 3D‐printed ABS scanner

Single‐Process 3D‐Printed Triaxial Accelerometer

A soft pneumatic bistable reinforced actuator bioinspired by Venus Flytrap with enhanced grasping capability

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