Multimaterials 3D Printing for Free Assembly Manufacturing of Magnetic Driving Soft Actuator

2017 ◽  
Vol 4 (22) ◽  
pp. 1700629 ◽  
Author(s):  
Zhongying Ji ◽  
Changyou Yan ◽  
Bo Yu ◽  
Xiaolong Wang ◽  
Feng Zhou
Keyword(s):  
3D Printing ◽  
Soft Actuator

scholarly journals Control-Oriented Modelling of a 3D-Printed Soft Actuator

Materials ◽  
2018 ◽  
Vol 12 (1) ◽  
pp. 71 ◽  
Author(s):  
Ali Zolfagharian ◽  
Akif Kaynak ◽  
Sui Yang Khoo ◽  
Jun Zhang ◽  
Saeid Nahavandi ◽  
...  
Keyword(s):  
3D Printing ◽  
Dynamic Models ◽  
Three Dimensional ◽  
Input Voltage ◽  
Soft Actuator ◽  
Voltage Variation ◽  
Sophisticated Model ◽  
3D Printed ◽  
Rc Circuit ◽  
Soft Actuators

A new type of soft actuator was developed by using hydrogel materials and three-dimensional (3D) printing technology, attracting the attention of researchers in the soft robotics field. Due to parametric uncertainties of such actuators, which originate in both a custom design nature of 3D printing as well as time and voltage variant characteristics of polyelectrolyte actuators, a sophisticated model to estimate their behaviour is required. This paper presents a practical modeling approach for the deflection of a 3D printed soft actuator. The suggested model is composed of electrical and mechanical dynamic models while the earlier version describes the actuator as a resistive-capacitive (RC) circuit. The latter model relates the ionic charges to the bending of an actuator. The experimental results were acquired to estimate the transfer function parameters of the developed model incorporating Takagi-Sugeno (T-S) fuzzy sets. The proposed model was successful in estimating the end-point trajectory of the actuator, especially in response to a broad range of input voltage variation. With some modifications in the electromechanical aspects of the model, the proposed modelling method can be used with other 3D printed soft actuators.

3D Printing of a Photo-thermal Self-folding Actuator

2017 ◽  
Vol 2 (2) ◽  
pp. 15 ◽  
Author(s):  
Ali Zolfagharian ◽  
Abbas Z. Kouzani ◽  
Bijan Nasri-Nasrabadi ◽  
Scott Adams ◽  
Sui Yang Khoo ◽  
...  
Keyword(s):  
3D Printing ◽  
Shape Memory Polymer ◽  
Video Camera ◽  
Polymer Materials ◽  
Micro Electro Mechanical Systems ◽  
Soft Actuator ◽  
Thermographic Camera ◽  
Manufacturing Techniques ◽  
Ir Light ◽  
Bending Angles

The demand for rapid and accurate fabrication of light-weight, biocompatible, and soft actuators in soft robotics has perused researchers to design and fabricate such products by rapid manufacturing techniques. The self-folding origami structure is a type of soft actuator that has applications in micro electro mechanical systems, soft electronics, and biomedical devices. 3-dimentional (3D) printing is a current manufacturing process that can be used for fabrication of involute soft self-folding products by means of shape memory polymer materials. This paper presents, for the first time, a method for developing a photo thermal self-folding soft actuator using a 3D bioplotter. Easily accessible and inexpensive pre-strained polystyrene is opted for the backbone of actuator. The polystyrene film (PS) is then structured in a hand shape gripper. Chitosan hydrogel and carbon black ink were combined for printing active hinges on the hand gripper. Various active hinges with different widths and thicknesses were printed on the hand gripper using the 3D bioplotter. An infra-red (IR) heating lamp was placed at a reasonable distance to emit IR light uniformly on the hand gripper. The temperature distribution on the hand gripper was observed using a thermographic camera and the bending angles of the samples were recorded by a video camera. It was observed that the bending angles of the hand fingers depend on factors such as the intensity of the heat flux generated by the IR light intensity, distance, onset temperature, geometry of the fingers such as width and thickness, and area of the hinges.

Fast‐Response, Stiffness‐Tunable Soft Actuator by Hybrid Multimaterial 3D Printing

2019 ◽  
Vol 29 (15) ◽  
pp. 1806698 ◽  
Author(s):  
Yuan‐Fang Zhang ◽  
Ningbin Zhang ◽  
Hardik Hingorani ◽  
Ningyuan Ding ◽  
Dong Wang ◽  
...  
Keyword(s):  
3D Printing ◽  
Fast Response ◽  
Soft Actuator

scholarly journals Soft Robots: Fast‐Response, Stiffness‐Tunable Soft Actuator by Hybrid Multimaterial 3D Printing (Adv. Funct. Mater. 15/2019)

2019 ◽  
Vol 29 (15) ◽  
pp. 1970098 ◽  
Author(s):  
Yuan‐Fang Zhang ◽  
Ningbin Zhang ◽  
Hardik Hingorani ◽  
Ningyuan Ding ◽  
Dong Wang ◽  
...  
Keyword(s):  
3D Printing ◽  
Fast Response ◽  
Soft Robots ◽  
Soft Actuator

Shape Memory Polymer-based Stiffness Variable Soft Actuator Via Digital Light Processing-based 3D Printing

2021 ◽  
Author(s):  
Xinfeng Wei ◽  
Honggeng Li ◽  
Xiangnan He ◽  
Zhenqing Li ◽  
Haitao Ye ◽  
...  
Keyword(s):  
3D Printing ◽  
Shape Memory ◽  
Shape Memory Polymer ◽  
Digital Light Processing ◽  
Soft Actuator

Michael Pawlyn: Push the limits of 3D printing

Nature ◽  
2013 ◽  
Vol 494 (7436) ◽  
pp. 174-174 ◽  
Author(s):  
Michael Pawlyn
Keyword(s):  
3D Printing

High-resolution 3D printing in seconds

Nature ◽  
2020 ◽  
Vol 588 (7839) ◽  
pp. 594-595
Author(s):  
Cameron Darkes-Burkey ◽  
Robert F. Shepherd
Keyword(s):  
High Resolution ◽  
3D Printing
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