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Relevant bibliographies by topics / Hand printer

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Academic literature on the topic 'Hand printer'

Author: Grafiati

Published: 28 June 2021

Last updated: 10 February 2022

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Journal articles on the topic "Hand printer"

1

Lee, Keun Ho, Sung Jae Kim, Yong Ho Cha, Jae Lim Kim, Dong Kyu Kim, and Sang Jun Kim. "Three-dimensional printed prosthesis demonstrates functional improvement in a patient with an amputated thumb: A technical note." Prosthetics and Orthotics International 42, no. 1 (December 20, 2016): 107–11. http://dx.doi.org/10.1177/0309364616679315.

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Background and Aim: Three-dimensional printer is widely used in industry, biology, and medical fields. We report a finger prosthesis produced by a three-dimensional scanner and printer for a 67-year-old man with a right thumb amputation above the metacarpophalangeal joint. Technique: His right amputated and left intact hands were scanned with a three-dimensional scanner, and the left-hand image was rotated to the right side to design the right thumb prosthesis. The designed prosthesis was printed with a three-dimensional printer using the fused filament fabrication output system. Discussion: The Jebsen–Taylor hand function test and Box and Block Test scores improved after application of the prosthesis. Most Quebec User Evaluation of Satisfaction with Assistive Technology results were “very satisfied,” and most Orthotics and Prosthetics Users’ Survey results were “very easy.” Preparing the prosthesis made by three-dimensional scanner and three-dimensional printer was faster and cheaper than preparing a conventional prosthesis. Clinical relevance Using three-dimensional scanning and printing technique, we can easily produce specifically shaped finger prostheses for specific movements in amputated patients with low cost.

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Avrin, Leila. "Hebraica Now! The Book Arts, 1991-1993." Judaica Librarianship 8, no. 1 (September 1, 1994): 154–61. http://dx.doi.org/10.14263/2330-2976.1261.

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There have been several positive developments in the areas of Hebrew typography, fine and private printing, and artists' books from 1991 to 1993. The paper discusses recent typefaces by the Jerusalem designer Zvi Narkiss; the typographic experiments of Ariel Wardi, former head of the Printing Department of Hadassah College of Technology in Jerusalem, as well as a new Hebrew display letter, "Hillel," designed by Scott-Martin Kosofsky for the Harvard Hillel Sabbath Songbook. The works of two private presses are examined: that of the Santa Monica private printer Jacob Samuel in a book illustrated by Micha Ulmann, and that of Jerusalem's designer-bookbinder, Yehuda Miklaf. Two significant artists' books have appeared recently: Maftir Yonah, a limited hand-printed edition with calligraphy by David Moss and etchings by Mordechai Beck, printed at the Jerusalem Print Workshop, and The Six Days of Creation, a work in monoprint, with calligraphy and drawing by Malla Carl. Another milestone is the 1992 Hebrew translation by Israel's veteran printing expert, Gideon Stern, of the printer's manual, Bruckmann's Handbuch der Drucktechnik as Sefer ha-defus. It includes the history and essentials of Hebrew typography and serves as an invaluable reference work for the new generation of Hebrew printers.

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Baronio, Gabriele, Sami Harran, and Alberto Signoroni. "A Critical Analysis of a Hand Orthosis Reverse Engineering and 3D Printing Process." Applied Bionics and Biomechanics 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/8347478.

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The possibility to realize highly customized orthoses is receiving boost thanks to the widespread diffusion of low-cost 3D printing technologies. However, rapid prototyping (RP) with 3D printers is only the final stage of patient personalized orthotics processes. A reverse engineering (RE) process is in fact essential before RP, to digitize the 3D anatomy of interest and to process the obtained surface with suitable modeling software, in order to produce the virtual solid model of the orthosis to be printed. In this paper, we focus on the specific and demanding case of the customized production of hand orthosis. We design and test the essential steps of the entire production process with particular emphasis on the accurate acquisition of the forearm geometry and on the subsequent production of a printable model of the orthosis. The choice of the various hardware and software tools (3D scanner, modeling software, and FDM printer) is aimed at the mitigation of the design and production costs while guaranteeing suitable levels of data accuracy, process efficiency, and design versatility. Eventually, the proposed method is critically analyzed so that the residual issues and critical aspects are highlighted in order to discuss possible alternative approaches and to derive insightful observations that could guide future research activities.

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Ishikawa, Ren, and Kazuaki Hirana. "Development of Five-finger Robot Hand by Using 3D Printer." Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2018 (2018): 2P2—D13. http://dx.doi.org/10.1299/jsmermd.2018.2p2-d13.

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Takeda, Kohei, Shunichi Hayashi, and Kazunori Ueki. "Deformation Properties of 3D Printed Shape Memory Polymer." Key Engineering Materials 725 (December 2016): 378–82. http://dx.doi.org/10.4028/www.scientific.net/kem.725.378.

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Recently, the 3D printer which can make products in a short time without cutting or casting has been attracted worldwide attention. If we use the 3D printer, it is possible that a customized product which is well suited to the individual is fabricated with low cost and in a short time. On the other hand, in the intelligent materials, shape memory polymer (SMP) has been practically used. In SMP, shape fixity and shape recovery appear based on the difference of properties of molecular motion between above and below the glass transition temperature in temperature variation. The thermomechanical property of SMP is close to that of the human body around glass the transition temperature. Since SMP has these characteristics, it can be applied to the elements coming into contact with body as a nursing-care robot in the medical field. Hence, if we make a product with SMP using the 3D printer, the new device which is well suited to the individual can be developed. In the present paper, the deformation properties of SMP made by the fused deposition modeling (FDM) 3D printer were investigated. The results obtained are as follows. (1) The deformation resistance and recovery strain in unloading of the 3D printed SMP under a low printing rate are higher and larger than these of the high printing rate. (2) If we heat the 3D printed SMP under a high printing rate, it does not recover the original shape perfectly since the residual stress appears during printing.

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DOWNTON, A. C., R. W. S. TREGIDGO, and E. KABIR. "RECOGNITION AND VERIFICATION OF HARDWRITTEN AND HAND-PRINTER BRITISH POSTAL ADDRESSES." International Journal of Pattern Recognition and Artificial Intelligence 05, no. 01n02 (June 1991): 265–91. http://dx.doi.org/10.1142/s0218001491000168.

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An algorithmic architecture for a high-performance optical character recognition (OCR) system for hand-printed and handwritten addresses is proposed. The architecture integrates syntactic and contextual post-processing with character recognition to optimise postcode recognition performance, and verifies the postcode against simple features extracted from the remainder of the address to ensure a low error rate. An enhanced version of the characteristic loci character recognition algorithm was chosen for the system to make it tolerant of variations in writing style. Feature selection for the classifier is performed automatically using the B/W algorithm. Syntactic and contextual information for hand-printed British postcodes have been integrated into the system by combining low-level postcode syntax information with a dictionary trie structure. A full implementation of the postcode dictionary trie is described. Features which define the town name effectively, and can easily be extracted from a handwritten or hand-printed town name are used for postcode verification. A database totalling 3473 postcode/address image has used to evaluate the performance of the complete postcode recognition process. The basic character recognition rate for the full unconstrained alphanumeric character set is 63.1%, compared with an expected maximum attainable 75–80%. The addition of the syntactic and contextual knowledge stages produces an overall postcode recognition rate which is equivalent to an alphanumeric character recognition rate of 86–90%. Separate verification experiments on a subset of 820 address images show that, with the first-order features chosen, an overall correct address feature code extraction rate of around 35% is achieved.

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Kalas, David, Silvan Pretl, Jan Reboun, Radek Soukup, and Ales Hamacek. "Towards Hand Model with Integrated Multichannel Sensor System for Thermal Testing of Protective Gloves." Periodica Polytechnica Electrical Engineering and Computer Science 62, no. 4 (November 13, 2018): 165–71. http://dx.doi.org/10.3311/ppee.13264.

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This paper deals with the development of a temperature sensor system consisting of multiple temperature sensors integrated into a model of a human hand and a system for data collection, processing and 3D visualization. The measuring part of the system uses temperature sensors TMP05, which enable daisy chain serial connection. The individual chains are then connected to the microprocessor. The microprocessor controls the temperature measurement and sends data to the computer, where data is processed, evaluated and visualized. The temperature sensors are mounted on flexible printed circuit boards which are placed into the human hand model and subsequently fixed by a UV curable adhesive. The model of the human hand is designed in accordance with the standard models for the production of rubber gloves and it is made on a 3D printer of polyamide PA6 filled with short carbon fibers. The final version of the system will have approximately two hundred sensors, which will be concentrated mainly in the area of fingers and back of the hand.

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Narlıoğlu, Nasir, Tufan Salan, and Mehmet Hakkı Alma. "Properties of 3D-printed wood sawdust-reinforced PLA composites." BioResources 16, no. 3 (June 15, 2021): 5467–80. http://dx.doi.org/10.15376/biores.16.3.5467-5480.

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Thermal, morphological, and mechanical properties of three-dimensional (3D) printed polylactic acid (PLA) composites reinforced with different amounts of waste pine sawdust were investigated. To determine the mechanical properties of the obtained filaments, test samples were produced using a 3D printer according to the mechanical test standards. The filaments that were produced from blends that contained the wood sawdust at the highest level (20%) could be printed via a 3D printer without any problems. According to the results obtained from the mechanical tests, a decrease in the tensile strength values of the composites was observed with the addition of wood sawdust into the neat PLA polymer. On the other hand, it was determined that the flexural strength values of the wood sawdust/PLA composites significantly increased with the addition of the wood sawdust. It was concluded that the waste pine sawdust is a reasonable reinforcement material for the production of composite filament for 3D printing applications and it can be compatibly extruded with PLA polymer. Thus, sawdust can be used as a value-added waste source for the production of high-quality 3D polymeric materials.

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Kim, Sang Jun, Sung Jae Kim, Yong Ho Cha, Keun Ho Lee, and Jeong-Yi Kwon. "Effect of personalized wrist orthosis for wrist pain with three-dimensional scanning and printing technique: A preliminary, randomized, controlled, open-label study." Prosthetics and Orthotics International 42, no. 6 (July 16, 2018): 636–43. http://dx.doi.org/10.1177/0309364618785725.

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Background: Three-dimensional printer technology can produce the personalized orthosis in various forms. Objective: To develop a personalized wrist orthosis using a three-dimensional scanner and three-dimensional printer for patients with wrist pain. Study design: A preliminary, prospective, randomized, open-label study. Methods: A total of 22 patients with wrist pain were randomly assigned to the control and experimental groups. The control group wore a cock-up orthosis and the experimental group wore a three-dimensional-printed wrist orthosis for 1 week. The Patient-Rated Wrist Evaluation, Jebsen Hand Function Test, and Orthotics and Prosthetics Users’ Survey were checked before and 1 week after the application. Results: The Patient-Rated Wrist Evaluation showed significant pain relief in both groups. Two items of the 28 Orthotics and Prosthetics Users’ Survey questions, “Put toothpaste on brush and brush teeth” and “Dial a touch tone phone,” showed high satisfaction scores, with statistically significant difference in the experimental group ( p = 0.036 and 0.004). Conclusion: The three-dimensional-printed wrist orthosis was superior to the cock-up orthosis for two items of the Orthotics and Prosthetics Users’ Survey. Wrist pain was reduced in the group wearing the three-dimensional-printed wrist orthosis as well as the group wearing the cock-up orthosis, so the three-dimensional-printed wrist orthosis could possibly play the same role as the cock-up orthosis. Clinical relevance A three-dimensional-printed wrist orthosis can be a substitute for a conventional ready-made wrist orthosis for patients with wrist pain with more satisfaction.

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Păcurar, Răzvan, Ancuţa Păcurar, Florin Popişter, and Anca Popişter. "Finite Element Analysis to Improve the Accuracy of ABS Plastic Parts Made by Desktop 3D Printing Method." Applied Mechanics and Materials 760 (May 2015): 509–14. http://dx.doi.org/10.4028/www.scientific.net/amm.760.509.

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The development of low-cost desktop versions of three-dimensional (3D) printers has made these devices widely accessible for rapid prototyping and small-scale manufacturing in home and office settings. Many desktop 3D printers rely fused deposition modeling process, that it is based on heated thermoplastic filiform material that it is extrused through a nozzle and deposited afterwards onto a heated building platform. The extruding accuracy in part fabrication is subject to transmission machinery and filament diameter on one hand and the technological parameters that are used in the manufacturing process (raster angle, tool path, slice thickness, build orientation, deposition speed, building temperature, etc.) on the other hand. The presented work try to investigate by using the finite element method, how the building temperature in close connection with the material characteristics is influencing the accuracy of a test part that has been designed in order to callibrate an Desktop 3D Printer machine that has been originally designed and produced at the Technical University of Cluj-Napoca (TUC-N).

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Dissertations / Theses on the topic "Hand printer"

1

Banks, R. N. "Neural networks for hand-printed character recognition." Thesis, University of Nottingham, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293655.

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Estelle, Stephen. "Optimizing 3D Printed Prosthetic Hand and Simulator." Digital Commons at Loyola Marymount University and Loyola Law School, 2019. https://digitalcommons.lmu.edu/etd/661.

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The purpose of this study is to examine the position and use of an upper extremity prosthetic simulator on non-amputees. To see how a 3D printed prosthetic simulator can be optimized to serve the user correctly and accurately. In addition, this study examines the improvement of the Hosmer 5X Prosthetic Hook with the addition of newly designed trusses on to the prosthetic, as well as utilizing a new manufacturing method known as 3D printing. These topics are important because there is no standardized prosthetic simulator for schools and research facilities to use. Off the shelf prosthetic simulator cost upwards of $2000, often too expensive for early stage research. By optimizing the Hosmer 5X Prosthetic Hook with 3D printing, this new opportunity could allow amputees, from a range of income classes, to have access to a wide variety of prosthetics that are strong enough to support everyday living activities. A low-cost prosthetic that is easily distributable and accessible can give people a chance to regain their independence by giving them different options of efficient prosthetic devices, without having to spend so much. The devices in this project were design and analyzed on SOLIDWORKS, 3D scanned on the Artec Space Spider, and surfaced on Geomagic Wrap. Key results include developing a low-cost, robust prosthetic simulator capable of operating a Hosmer 5X Prosthetic hook, as well as developing a lighter version of the Hosmer 5X Prosthetic Hook that is more cost efficient and easily obtainable to the population around the world.

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遲秉壯 and Ping-chong Chee. "Hand-printed Chinese character recognition and image preprocessing." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31213972.

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Chee, Ping-chong. "Hand-printed Chinese character recognition and image preprocessing /." Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B18597579.

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Bult, Timothy Paul. "Schema labelling applied to hand-printed Chinese character recognition." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/26175.

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Hand-printed Chinese character recognition presents an interesting problem for Artificial Intelligence research. Input data in the form of arrays of pixel values cannot be directly mapped to unique character identifications because of the complexity of the characters. Thus, intermediate data structures are necessary, which in turn lead to a need to represent knowledge of the characters' composition. Building the intermediate constructs for these hand-printed characters necessarily involves choices among ambiguities, the set of which is so large that an efficient search algorithm becomes central to the recognition process. Schema labelling is a theory of how knowledge should be organized for recognition tasks in which composition structure is inherent in the domain, the composition entails ambiguity, and the ambiguity generates large search spaces. This thesis describes an implementation of an enhanced version of schema labelling for Chinese characters. The specific problems addressed by the enhancements, with some success, are (i) the segmentation of real images into objects usable by the schema system, (ii) the definition of schemas which adequately describe the generic composition of hand-printed Chinese characters, as well as common variations or vagaries, and (iii) the inclusion of sufficient "control knowledge" to prevent combinatorial explosion of the backtracking recognition process. Test characters for recognition systems can be classified along several dimensions. On the spectrum from type-set, through hand-printed, to hand-written forms, our system was tested on restricted hand-print, at a level somewhat more difficult than is normally attempted. On the spectrum of input types, from grey-scale pixel input through on-line stroke representations, our system was fully tested only at the high end, with complete synthetic strokes. We obtained a success rate of 57%, 12 out of the 21 characters tested. The principal success of the work is that characters of the complexity tested could be recognized at all, and in the impact schema labelling techniques had on that recognition.
Science, Faculty of
Computer Science, Department of
Graduate

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Pink, Jeffrey R. "Features and neural net recognition strategies for hand printed digits /." Online version of thesis, 1995. http://hdl.handle.net/1850/12230.

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Chang, Christopher Isaac. "Real-time hand printed character recognition on a DSP chip." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/37770.

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Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1995.
Includes bibliographical references (p. 119-120).
by Christopher Isaac Chang.
M.S.

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Kabir, Ehsanollah. "Application of domain knowledge to recognition of hand-printed and handwritten postal addresses." Thesis, University of Essex, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.236248.

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Ronald, Emma. "Patterns of identity : hand block printed and resist-dyed textiles of rural Rajasthan." Thesis, De Montfort University, 2012. http://hdl.handle.net/2086/8691.

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This thesis sets out to investigate the changing social significance of the hand-block printed and resist-dyed cottons of Rajasthan. Once a vital part of the region’s everyday rural textile and dress traditions, communicating information about its wearers and demonstrating the craftsmanship of its makers, today block printed textiles are produced primarily for export and tourist markets. In the space of just a few decades the growing effects of globalisation have wrought irrevocable change upon this traditional craft. Under the pressures of new market forces, modern hand block printed textiles bear little resemblance to their traditional counterparts. Drawing on an ethnographic perspective in general, and an ethnomethodological perspective in particular, the main objective of this thesis is to develop a deeper understanding of traditional hand block printed and resist-dyed textiles – with particular focus on the modernisation of traditional forms of hand block printing in Rajasthan, and the various strategies and experiences which the craftspeople have undertaken to deal with the changes to the market for their products. Using the recent history of block printed cloth production in Rajasthan, as told by local artisans, it explores the manner in which such phenomena as modernisation and globalisation are embodied by shifts in production technology, design aesthetics, and market forces. In order to explore the rural roots and chart the dramatic recent modernisation of the craft this thesis identifies and documents the range of textiles traditionally made by the region’s hereditary communities of cloth printers and dyers, and investigates their role in the projection of identity, exploring the changing communicative function of these textiles, notably with the rise of synthetic fabrics, among the rural communities of Rajasthan. In doing so, this thesis investigates how the consumption of hand block printed textiles has changed over the past forty years and considers the impact of the growth of export and tourism on traditions of cloth printing in the region. It is a socially situated study, based on extensive firsthand fieldwork with the Chhipa community of hereditary cloth printers, making use of ethnography, photography, and personal experience of textile dyeing, printing and design. By developing methodologies based on the detailed documentation of the technologies, materials and processes involved in hand block printing this thesis seeks to update and expand upon the existing literature on the craft by providing and analysing contemporary accounts of family traditions and modern developments in use by current generations of artisans. In doing so this thesis also contributes to current discourse on the preservation of craft knowledge as a form of intangible cultural heritage. The study is primarily located within the field of Indian textile and dress studies. It contributes to contemporary ethnographies of textile crafts through the detailed analysis of print and dye technologies, and, by also considering the meanings and values of block printed cloth as clothing, adds to the literature on the social role of textiles and dress with a regionally-specific focus on the role of pattern and colour. By focussing on the communicative functions of pattern and cloth, it also enhances cross-disciplinary attentions to regional identities and intangible cultural heritage. Finally it engages with the very local processes of globalisation and the contemporary values of handcrafted cloth.

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Nellis, Jaan. "The application of artificial neural networks and associated technologies to the task of hand-printed character recognition." Thesis, Brunel University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333516.

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Books on the topic "Hand printer"

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Mardersteig, Martino. Die auf der Handpresse der Officina Bodoni gedruckten Bücher, 1978-2004. Hamburg: Maximilian-Gesellschaft, 2013.

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Gibbs, Darrell. Ten hand printed post cards. Beoxbourne (Herts): [Darrell Gibbs], 1997.

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1953-, Bethmann Laura donnelly, ed. Hand printing from nature. North Adams, MA: Storey Pub., 2011.

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Hinchcliffe, John. Print style: Hand-printed patterns for home decoration. Sydney, NSW: HarperCollins, 1996.

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Hinchcliffe, John. Print style: Hand-printed patterns for home decoration. London: Cassell, 1995.

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Keane, Marguerite. Finished by hand: Decoration in fifteenth-century printed books. Williamstown, Mass: Williams College, Chaplin Library, 1995.

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Ṿardi, Ariʼel. Melekhet ha-defus shel Ariʼel Ṿardi =: The private press of Ariel Wardi. [Yerushalayim: A. Ṿardi, 1995.

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Waldemarsudde (Museum : Djurgården, Stockholm, Sweden) and Svenska hemslöjdsföreningarnas riksförbund, eds. Lilli & Prinsen: 100 år av hemslöjd och textil konst. Stockholm]: Carlsson Bokförlag i samarbete med Prins Eugen Waldemarsudde, 2012.

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Quality hand soldering and circuit board repair. 5th ed. Clifton Park, NY: Delmar Learning, 2007.

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Quality hand soldering and circuit board repair. Albany, N.Y: Delmar Publishers, 1994.

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Book chapters on the topic "Hand printer"

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Ramkumar, Hemadri Rajam, Wan Ni Nicole Tay, Ying Lin Valeska Tan, and Guoxian Tan. "3D Printed Prosthetic Hand." In IRC-SET 2020, 53–70. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-9472-4_5.

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Kovács-V, Zs M., R. Guerrieri, and G. Baccarani. "On Hand-Printed Character Recognition." In From Neural Networks and Biomolecular Engineering to Bioelectronics, 37–48. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4899-1088-2_2.

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Gooch, Jan W. "Hand-Blocked Print." In Encyclopedic Dictionary of Polymers, 356. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_5771.

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Kopowski, Jakub, Izabela Rojek, Dariusz Mikołajewski, and Marek Macko. "3D Printed Hand Exoskeleton - Own Concept." In Lecture Notes in Mechanical Engineering, 298–306. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-18715-6_25.

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Kimura, Fumitaka. "OCR Technologies for Machine Printed and Hand Printed Japanese Text." In Digital Document Processing, 49–71. London: Springer London, 2007. http://dx.doi.org/10.1007/978-1-84628-726-8_3.

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Amin, Adnan, Aba Rajithan, and Paul Compton. "Recognition of hand-printed characters using induct machine learning." In Advances in Structural and Syntactical Pattern Recognition, 189–97. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/3-540-61577-6_20.

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Parker, J. R. "Recognition of Hand Printed Digits Using Multiple Parallel Methods." In Intelligent Systems Third Golden West International Conference, 923–31. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-7108-3_98.

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Mio, Renato, Marlene Bustamante, Giancarlo Salazar, and Dante A. Elias. "A 3D-Printed Prosthetic Hand with Modular Reconfigurable Fingers." In Interdisciplinary Applications of Kinematics, 93–102. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-16423-2_9.

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Benchabane, Sofiane Ibrahim, Nadia Saadia, and Amar Ramdane-Cherif. "Non-linear Control Applied to a 3D Printed Hand." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 140–55. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-76063-2_11.

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Alhaddad, Ahmad Yaser, Sami Emad AlKhatib, Rahib Ahmed Khan, Salman Mohammad Ismail, Al-Sendibad Said Shehadeh, Abdellatif Mohammad Sadeq, and John-John Cabibihan. "Toward 3D Printed Prosthetic Hands that Can Satisfy Psychosocial Needs: Grasping Force Comparisons Between a Prosthetic Hand and Human Hands." In Social Robotics, 304–13. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-70022-9_30.

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Conference papers on the topic "Hand printer"

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Duan, Pengji, Yutong Liu, Junjun Ding, and Mingshao Zhang. "Development of Vision-Based Control System for Mobile 3D Printer." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-11577.

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Abstract The 3D printing technologies can produce objects with a very complex shape or geometry nowadays thanks to the advanced researches in their precision, repeatability, material ranges, etc. The size of 3D printed objects also varies. The Oak Ridge National Lab printed a 17.5 feet long, 5.5 feet wide and 1.5 feet tall tool for Boeing that weights 1,650 lbs. On the other hand, using Two Photon Polymerization, sub-μm structures can be produced. The majority of current 3D printers design resembles the traditional FDM 3D printer. The printer is stationary during the printing period, limiting the print zone by the size of the robots, regardless as to the printer designs (Cartesian, polar, delta or articulated robots). In addition, all current 3D printers work as stand-alone equipment, which prevents the possibility of further speeding up the fabrication by using multiple collaborating 3D printers. Using mobile robots as a 3D printer could eliminate the size limit of the print zone and enable collaboration among different mobile robots to speed up the printing process. However, major problems are remaining unsolved in the current mobile 3D printer research, such as the precise localization of the robot, material slipping, accumulative printing error, etc. In this paper, a vision-based feedback control system is presented as a solution to these problems in mobile 3D printers. The system is equipped a single camera as sensory input. Using Simultaneous Localization and Mapping (SLAM) methods, the mobile 3D printer could potentially achieve sub-millimeter accuracy for localization. The slipping and accumulative error could also be mediated using image processing and object recognition. The system also enables the possibility for multiple 3D printers to work simultaneously. It is believed that mobile 3D printers equipped with vision-based feedback control system could have a great potential in the future.

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Nilwong, Sivapong, Delowar Hossain, Eneo Petoku, and Genci Capi. "Development of Myoelectric Robotic Hand using 3D Printer." In 2019 1st International Conference on Advances in Science, Engineering and Robotics Technology (ICASERT). IEEE, 2019. http://dx.doi.org/10.1109/icasert.2019.8934505.

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Yoshikawa, Masahiro, Ryo Sato, Takanori Higashihara, Tsukasa Ogasawara, and Noritaka Kawashima. "Rehand: Realistic electric prosthetic hand created with a 3D printer." In 2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). IEEE, 2015. http://dx.doi.org/10.1109/embc.2015.7318894.

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Yoo, Sun-Young, Seung Jae Lee, and Jong-Mo Seo. "Manual centrifuge system: Bearing-based hand spinner made with 3-D printer." In 2017 39th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). IEEE, 2017. http://dx.doi.org/10.1109/embc.2017.8037145.

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McGrady, Garrett, and Kevin Walsh. "Dual Extrusion FDM Printer for Flexible and Rigid Polymers." In ASME 2020 15th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/msec2020-8377.

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Abstract Commercially available fused deposition modeling (FDM) printers have yet to bridge the gap between printing soft, flexible materials and printing hard, rigid materials. This work presents a custom printer solution, based on open-source hardware and software, which allows a user to print both flexible and rigid polymer materials. The materials printed include NinjaFlex, SemiFlex, acrylonitrile-butadiene-styrene (ABS), Nylon, and Polycarbonate. In order to print rigid materials, a custom, high-temperature heated bed was designed to act as a print stage. Additionally, high temperature extruders were included in the design to accommodate the printing requirements of both flexible and rigid filaments. Across 25 equally spaced points on the print plate, the maximum temperature difference between any two points on the heated bed was found to be ∼9°C for a target temperature of 170°C. With a uniform temperature profile across the plate, functional prints were achieved in each material. The print quality varied, dependent on material; however, the standard deviation of layer thicknesses and size measurements of the parts were comparable to those produced on a Zortrax M200 printer. After calibration and further process development, the custom printer will be integrated into the NEXUS system — a multiscale additive manufacturing instrument with integrated 3D printing and robotic assembly (NSF Award #1828355).

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Jacobsen, C., E. Ashe, and R. Noorani. "The Recreation and Evaluation of a Human Hand Using Low-Cost Reverse Engineering and 3D Printing Systems." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-66905.

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The primary goal of this research was to evaluate the effectiveness of a low-cost reverse engineering system to recreate a physical, three-dimensional model of a human hand. In order to achieve the goal of this research, three key objectives were fulfilled: (1) the first objective was to recreate the physical model of the human hand using a low-cost experimental setup (<$5000), (2) the second objective was to assess the ability of the reverse engineered hand to perform common tasks of everyday life, and (3) the third objective was to investigate the potential biomedical applications of the reverse engineered human hand. A chosen test subject had his or her hand molded and cast into a plaster three-dimensional model that could be held steady and scanned very precisely by a NextEngine Desktop 3D Scanner. Other methods could have been employed to achieve the scanned model, but given the experimental setup and timeline a casted model was assumed to be the most appropriate method to achieve the best results. The plaster casting of the subject’s hand was scanned several times using different orientations of the model relative to the stationary 3D scanner. From these scans, a computer CAD model of the human hand was generated, modified, and 3D printed using a Makerbot Replicator 2. The printed model was evaluated by its ability to perform common every-day tasks such as picking up a cup/bottle, holding a pen/pencil, or opening/closing around an object. Several iterations of the printed human hand were evaluated in order to determine the best design for the fingers’ joints and cable-driven motion system. The first iteration of the printed hand featured a snap-in joint system. This joint design suffered from requiring a large number of individual pieces and poor tolerances of the Makerbot printer. The second iteration featured a press fit style joint system. This system was hindered by tolerances similar to the first iteration as well as plastic deformation of the printed material due to inadequate elasticity. The third and final iteration of the joint system featured a single printed assembly for which the entire prosthetic could be printed at one time. It was expected that the hand would be able to translate the rotational movement of an individual’s wrist to tension the cables of the motion system thereby closing the fingers into a first. This movement will allow the user to close the prosthetic hand around everyday objects and pick them up with relative ease. Although the possibilities of reverse engineering and 3D printing systems have greatly expanded as a result of greater affordability and increased accuracy, their applications in the biomedical field have yet to be fully explored.

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Ding, Houzhu, Filippos Tourlomousis, Azizbek Babakhanov, and Robert C. Chang. "Design of a Personalized Skin Grafting Methodology Using an Additive Biomanufacturing System Guided by 3D Photogrammetry." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-51990.

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In this paper, the authors propose a novel method whereby a prescribed simulated skin graft is 3D printed, followed by the realization of a 3D model representation using an open-source software AutoDesk 123D Catch to reconstruct the entire simulated skin area. The methodology is photogrammetry, which measures the 3D model of a real-word object. Specifically, the principal algorithm of the photogrammetry is structure from motion (SfM) which provides a technique to reconstruct a 3D scene from a set of images collected using a digital camera. This is an efficient approach to reconstruct the burn depth compared to other non-intrusive 3D optical imaging modalities (laser scanning, optical coherence tomography). Initially, an artificial human hand with representative dimensions is designed using a CAD design program. Grooves with a step-like depth pattern are then incorporated into the design in order to simulate a skin burn wound depth map. Then, the *.stl format file of the virtually wounded artificial hand is extruded as a thermoplastic material, acrylonitrile butadiene styrene (ABS), using a commercial 3D printer. Next, images of the grooves representing different extents of burned injury are acquired by a digital camera from different directions with respect to the artificial hand. The images stored in a computer are then imported into AutoDesk 123D Catch to process the images, thereby yielding the 3D surface model of the simulated hand with a burn wound depth map. The output of the image processing is a 3D model file that represents the groove on the plastic object and thus the burned tissue area. One dimensional sliced sections of the designed model and reconstructed model are compared to evaluate the accuracy of the reconstruction methodology. Finally, the 3D CAD model is designed with a prescribed internal tissue scaffold structure and sent to the dedicated software of the 3D printing system to print the design of the virtual skin graft with biocompatible material poly-ε-caprolactone (PCL).

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Renner, Alex, Joseph Holub, Shubang Sridhar, Gabe Evans, and Eliot Winer. "A Virtual Reality Application for Additive Manufacturing Process Training." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-47807.

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The promise of cheap and widely available 3D printers may be one of the best and worst aspects of Additive Manufacturing (AM). A non-technical consumer may pay significantly more for a 3D printer with “no assembly required”. Since it is reasonable to assume that they may not understand how the printer works and what will come out of it, they may wind up returning it because it does not meet their expectations. While consumers are starting to use 3D printers, designers in industry are utilizing Rapid Prototyping (RP) machines to manufacture final products in addition to prototypes. Designers will need to know AM principles in order to communicate design specifications to a RP lab technician so that a part passes Quality Assurance inspection. Training users on fundamental layer-based manufacturing methods can assist before and after a 3D printer purchase and reduce the strain on RP labs in industry. This paper presents an extensible software application that simulates an AM process in a Virtual Reality (VR) environment. The application parses machine component movements and printed segment attributes from G-code files exported from the MakerBot® Computer Aided Manufacturing (CAM) software. Position, speed, and type of movement are used to simulate the physical machine movements. A print “segment” is created at the start and end positions of a print movement. Color-coding segment attributes and modifying their size and shape establishes a visual relationship between terminology for a print setting and its representation in the virtual environment. This visual relationship between printed segments and print settings makes it easier to learn the 3D printing process and associated terminology. Novice and expert users can modify print settings in the virtual environment before and after printing a prototype. Identifying and fixing a mistake in the virtual environment reduces the time and cost to print a part with the desired quality. Training multidisciplinary users in a virtual world allows them to explore AM processes in detail from any angle or scale desired. This application has been tested in a cube shaped virtual reality CAVE system with each side measuring ten feet powered by a 96-node graphics computer cluster. Approximately 20 hours of demonstrations have been performed for public outreach programs related to STEM initiatives and visitors from industry who have had a variety of AM experience.

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Lee, Hyuk Jin, Baek Chul Kim, and Ja Choon Koo. "Development of a Novel Pneumatic Artificial Muscles Actuator Embedded Backbone and Position Sensor Using 3D-Printer." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-47209.

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This paper proposed a novel Pneumatic Artificial Muscles (PAM) actuator to solve critical problems that bring about buckling and disturb linear motion due to structure characteristics. The traditional PAM actuators in a relaxed state require an additional mechanism due to bucking. Also the PAM actuator need to precise external sensors. As a result, the size of the entire system is large and heavy, so it is difficult to miniaturize and integrate. Also the PAM actuators cannot be used in a small mechanism such as a robot hand tip. Therefor we proposed a novel PAM actuator that do not need to an additional mechanism such as link, joint, tendon and transmission and external sensors in order to eliminate these problems.

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Sobotka, Werner K. "Print quality test target: developed to test postscript printers." In Color Hard Copy and Graphic Arts. SPIE, 1992. http://dx.doi.org/10.1117/12.2322261.

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Reports on the topic "Hand printer"

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Cheray, D. L., and R. G. Mandl. Process characterization and control of hand-soldered printed wiring assemblies. Office of Scientific and Technical Information (OSTI), September 1993. http://dx.doi.org/10.2172/10185352.

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Wilkinson, R. Allen, and Michael D. Garris. Comparison of massively parallel hand-print segmenters. Gaithersburg, MD: National Institute of Standards and Technology, 1992. http://dx.doi.org/10.6028/nist.ir.4923.

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Gundacker, Roman. The Descent of Kawab and Hetepheres II. Verlag der Österreichischen Akademie der Wissenschaften, December 2018. http://dx.doi.org/10.1553/erc_stg_757951_r._gundacker_the_descent_of_kawab_and_hetepheres_ii.

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According to the communis opinio, prince Kawab is a son of Cheops. This assumption is primarily based on G. A. Reisner’s conclusions about the location of mastabahs and queen’s pyramids in the East Field and on three relief fragments from mastabah G 7110/20, which W. S. Smith ingeniously assigned to a scene naming Kawab and his mother Meretites. Early after G. A. Reisner had published the first part of his view on the history of the royal family of the Fourth Dynasty, substantial critique was brought forward by W. Federn. Following the latter, Kawab should be considered a grandson of Sneferu because, apart from mastabah G 7110/20 in Gizah, another mastabah at Dahshur bears witness of him. Even though it is now safely determined that the two are neither one and the same person nor contemporaries, W. Federn’s review has been taken as a starting point for further critical investigation by some scholars who came to the conclusion that Kawab was rather a son of Sneferu.

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Yatsymirska, Mariya. SOCIAL EXPRESSION IN MULTIMEDIA TEXTS. Ivan Franko National University of Lviv, February 2021. http://dx.doi.org/10.30970/vjo.2021.49.11072.

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The article investigates functional techniques of extralinguistic expression in multimedia texts; the effectiveness of figurative expressions as a reaction to modern events in Ukraine and their influence on the formation of public opinion is shown. Publications of journalists, broadcasts of media resonators, experts, public figures, politicians, readers are analyzed. The language of the media plays a key role in shaping the worldview of the young political elite in the first place. The essence of each statement is a focused thought that reacts to events in the world or in one’s own country. The most popular platform for mass information and social interaction is, first of all, network journalism, which is characterized by mobility and unlimited time and space. Authors have complete freedom to express their views in direct language, including their own word formation. Phonetic, lexical, phraseological and stylistic means of speech create expression of the text. A figurative word, a good aphorism or proverb, a paraphrased expression, etc. enhance the effectiveness of a multimedia text. This is especially important for headlines that simultaneously inform and influence the views of millions of readers. Given the wide range of issues raised by the Internet as a medium, research in this area is interdisciplinary. The science of information, combining language and social communication, is at the forefront of global interactions. The Internet is an effective source of knowledge and a forum for free thought. Nonlinear texts (hypertexts) – «branching texts or texts that perform actions on request», multimedia texts change the principles of information collection, storage and dissemination, involving billions of readers in the discussion of global issues. Mastering the word is not an easy task if the author of the publication is not well-read, is not deep in the topic, does not know the psychology of the audience for which he writes. Therefore, the study of media broadcasting is an important component of the professional training of future journalists. The functions of the language of the media require the authors to make the right statements and convincing arguments in the text. Journalism education is not only knowledge of imperative and dispositive norms, but also apodictic ones. In practice, this means that there are rules in media creativity that are based on logical necessity. Apodicticity is the first sign of impressive language on the platform of print or electronic media. Social expression is a combination of creative abilities and linguistic competencies that a journalist realizes in his activity. Creative self-expression is realized in a set of many important factors in the media: the choice of topic, convincing arguments, logical presentation of ideas and deep philological education. Linguistic art, in contrast to painting, music, sculpture, accumulates all visual, auditory, tactile and empathic sensations in a universal sign – the word. The choice of the word for the reproduction of sensory and semantic meanings, its competent use in the appropriate context distinguishes the journalist-intellectual from other participants in forums, round tables, analytical or entertainment programs. Expressive speech in the media is a product of the intellect (ability to think) of all those who write on socio-political or economic topics. In the same plane with him – intelligence (awareness, prudence), the first sign of which (according to Ivan Ogienko) is a good knowledge of the language. Intellectual language is an important means of organizing a journalistic text. It, on the one hand, logically conveys the author’s thoughts, and on the other – encourages the reader to reflect and comprehend what is read. The richness of language is accumulated through continuous self-education and interesting communication. Studies of social expression as an important factor influencing the formation of public consciousness should open up new facets of rational and emotional media broadcasting; to trace physical and psychological reactions to communicative mimicry in the media. Speech mimicry as one of the methods of disguise is increasingly becoming a dangerous factor in manipulating the media. Mimicry is an unprincipled adaptation to the surrounding social conditions; one of the most famous examples of an animal characterized by mimicry (change of protective color and shape) is a chameleon. In a figurative sense, chameleons are called adaptive journalists. Observations show that mimicry in politics is to some extent a kind of game that, like every game, is always conditional and artificial.

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