Formalizing shape-change: Three-dimensional printed shapes and hygroscopic material transformations

2019 ◽  
Vol 18 (1) ◽  
pp. 67-83
Author(s):  
Elena Vazquez ◽  
Benay Gürsoy ◽  
Jose Pinto Duarte
Keyword(s):  
Shape Change ◽  
Three Dimensional ◽  
Fourth Dimension ◽  
Dynamic Nature ◽  
Three Dimensional Printing ◽  
Responsive Systems ◽  
Hygroscopic Material ◽  
Wood Based Composite ◽  
Dimensional Printing ◽  
Printing Parameters

Shape-changing materials have become increasingly popular among architects in designing responsive systems. One of the greatest challenges of designing with these materials is their dynamic nature, which requires architects to design with the fourth dimension, time. This article presents a study that formalizes the shape-changing behavior of three-dimensional printed wood-based composite materials and the rules that serve to compute their shape-change in response to variations in relative humidity. In this research, we first developed custom three-dimensional printing protocols and analyzed the effects of three-dimensional printing parameters on shape-change. We thereafter three-dimensional printed kirigami geometries to amplify hygroscopic material transformation of wood-based composites.

scholarly journals INFLUENCE OF THREE-DIMENSIONAL PRINTING PARAMETERS ON PHYSICO-MECHANICAL PROPERTIES OF THERMOPLASTIC PRODUCTS

2018 ◽  
Vol 0 (1) ◽  
pp. 17-24
Author(s):  
Ігор Ігорович Івіцький ◽  
Владислав Володимирович Соловей ◽  
Олександр Леонідович Сокольський ◽  
Віталій Олександрович Олексишен
Keyword(s):  
Mechanical Properties ◽  
Three Dimensional ◽  
Three Dimensional Printing ◽  
Dimensional Printing ◽  
Printing Parameters

scholarly journals Testing the effects of fabrication parameters on the post-fabrication shape change of a three-dimensional printed textile platform

2021 ◽  
pp. 004051752199467
Author(s):  
Zahangir Khan ◽  
Han He ◽  
Xiaochen Chen ◽  
Lauri Sydänheimo ◽  
Leena Ukkonen ◽  
...  
Keyword(s):  
Shape Change ◽  
Three Dimensional ◽  
Elastic Band ◽  
Three Dimensional Printing ◽  
Moisture Sensor ◽  
Sensor Performance ◽  
Original Length ◽  
Dimensional Printing ◽  
Fabrication Parameters ◽  
Manufacturing Parameters

In this study, a moisture-stimulated three-dimensional printing filament was printed onto an elastic band. The created textile platform changes its shape permanently after exposure to a high-moisture environment. Three main manufacturing parameters – that is, the printed pattern’s infill percentage, the printed pattern’s thickness, and the textile stretch – were tested to study their effects on the platform curving process. It was observed that an increase of the printed pattern’s infill density from 20% to 80%, or the printed pattern’s thickness from 1.3 to 1.7 mm, resulted in reduced curvature, whereas an increase in the elastic band’s stretch extent from 120% to 130% of its original length increased the curvature. The achieved results can be very useful in the design and development of future four-dimensional printed structures, as well as in optimizing and programming moisture sensor performance, as several sensor manufacturing parameters can be modified according to the application and use environment.

A novel fast disintegrating tablet fabricated by three‐dimensional printing

2009 ◽  
Vol 00 (00) ◽  
pp. 090730035508060-7
Author(s):  
Deng-Guang Yu ◽  
Chris Branford-White ◽  
Yi-Cheng Yang ◽  
Li-Min Zhu ◽  
Edward William Welbeck ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Three Dimensional Printing ◽  
Fast Disintegrating Tablet ◽  
Dimensional Printing

Central ossifying fibroma of mandible

2020 ◽  
Vol 13 (12) ◽  
pp. e239286
Author(s):  
Kumar Nilesh ◽  
Prashant Punde ◽  
Nitin Shivajirao Patil ◽  
Amol Gautam
Keyword(s):  
Fibrous Tissue ◽  
Three Dimensional ◽  
Facial Asymmetry ◽  
Ossifying Fibroma ◽  
Mandible Reconstruction ◽  
Three Dimensional Printing ◽  
Osseous Lesion ◽  
Large Size ◽  
Dimensional Printing

Ossifying fibroma (OF) is a rare, benign, fibro-osseous lesion of the jawbone characterised by replacement of the normal bone with fibrous tissue. The fibrous tissue shows varying amount of calcified structures resembling bone and/or cementum. The central variant of OF is rare, and shows predilection for mandible among the jawbone. Although it is classified as fibro-osseous lesion, it clinically behaves as a benign tumour and can grow to large size, causing bony swelling and facial asymmetry. This paper reports a case of large central OF of mandible in a 40-year-old male patient. The lesion was treated by segmental resection of mandible. Reconstruction of the surgical defect was done using avascular fibula bone graft. Role of three-dimensional printing of jaw and its benefits in surgical planning and reconstruction are also highlighted.

scholarly journals Three-Dimensional Printing in Orthopedics: from the Basics to Surgical Applications

2021 ◽  
Author(s):  
Leandro Ejnisman ◽  
Bruno Gobbato ◽  
Andre Ferrari de França Camargo ◽  
Eduardo Zancul
Keyword(s):  
Three Dimensional ◽  
Three Dimensional Printing ◽  
Dimensional Printing
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