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Paper is one of the elements used in our everyday life under its different forms; from the office use, newspapers, books, post-it, different packaging… it is ever present. The mass production of paper is made possible today by the industrial paper mill. One of a key component affecting the quality of the paper is the forming fabric used as a filter in the preliminary stages of paper manufacturing. The TCR Transcent is such machine used to produce the forming fabric and TEXO-AB assures two third of the world production of the machine. Given the ever increasing customer demand, machine variants and technological need, it is imperial for TEXO-AB to implement a time-efficient and responsive design system. This is made possible by shifting from traditional design to a logic based parametric design. The TCR loom model provided by the method followed in this report allows among other benefit a reduction of up to 28% in the time taken to design a new machine while still attending to the customization element providing a unique machine for every customer. The use of the model will afford designers more time to focus on other essential tasks, schemes and strive toward continuous improvement in terms of quality and technology.

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The focus for this study is the illumination of the function of loom weights and their purpose within the warp-weighted loom. This study deals with Iron Age loom weights excavated at Birka, within the area known as the Garrison. This category of objects was originally classified as being fragments of bellow shields, an interpretation seemingly more corresponding with the site’s traditional interpretation. In order to give a fuller depiction of the textile production as a whole, spindle whorls found within the same defined area have also been included in this study. The main goal for the analyses of these two groups of fragmented finds has been to establish and re-create the functioning variables of these objects, that is, foremost their original shape and weight. Furthermore the objective has been to enhance the understanding of the functional parameters of the textile production in this area. This is partly achieved with the aid of comparing data regarding textile implements found in other areas of Birka. The results can confirm that the area held a capacity to manufacture a variety of different textiles, including very fine threads and weaves.

Reactive motion planning and local navigation of robots remains a significant challenge in the motion control of robotic vehicles. This thesis presents new results on vision guided navigation using optical flow. By detecting key image features, calculating optical flow and leveraging time-to-transit (tau) as a feedback signal, control architectures can steer a vehicle so as to avoid obstacles while simultaneously using them as navigation beacons. Averaging and balancing tau over multiple image features successfully guides a vehicle along a corridor while avoiding looming objects in the periphery. In addition, the averaging strategy deemphasizes noise associated with rotationally induced flow fields, mitigating risks of positive feedback akin to the Larsen effect. A recently developed, biologically inspired, binary-key point description algorithm, FReaK, offers process speed-ups that make vision-based feedback signals achievable. A Parrot ARDrone2 has proven to be a reliable platform for testing the architecture and has demonstrated the control law's effectiveness in using time-to-transit calculations for real-time navigation.

The continuously increasing demand of the customer requires equivalent response from the industry. This phenomenon of lean supply chain has also been seen in the paper and textile industries. TEXO AB produces customized weaving looms for the paper and textile industries. As every machine is redesigned to the customer requirements, TEXO needed to make the process efficient and effective. Once again the application of new computing technologies comes in handy. The practice of parametric design is applied to the TEXO’s FSX concept, which is one of the three weaving loom machine series supplied by TEXO. The frequent customization of FSX concept for each customer has created the need for faster redesign, better communication and quick order to suppliers. The automation is done on Autodesk Inventor using its iLogic and Shrinkwrap features. The parametric model is complete where all components to be customized are included. An excel sheet with design calculations, parameters and possible machine modules is developed together with the model. The feasibility of the automated design has been shown by the complete conformance of the model to the requirement. The excel sheet is very useful for improving the internal and external communications. After the completion of this project the redesign time is significantly reduced and the communication is simplified. It is also now possible to identify customization and module opportunities for future machines.

Denna kandidatuppsats behandlar sländtrissor och vävtyngder från vikingatida lokaler samt yngre järnålderslokaler som angränsar till den vikingatida handelsplatsen Birka. Syftet är att studera sländtrissor och vävtyngder från vikingatida fyndlokaler i Birkas omland; vilket åsyftar geografiska områden i Södermanlands län (Södermanland), Stockholms län och Uppsala län (Uppland). Sländtrissor påverkar de textila råmaterialen och de spunna trådarna, vidare påverkar vävtyngderna varpen och de vävda tygerna. Vilka trådar och vilka tyger som har producerats inom vikingatida lokaler i angränsning till Birka diskuteras utifrån sländtrissornas och vävtyngdernas vikt, form och storlek (trots att fragmentariska artifakter förekommer). Studien omfattar spår av textilproduktion inom vikingatida lokaler i Birkas omland, samt en undersökning gällande om det har förekommit inhemska importer av textilier från fastlandet till Birka under vikingatiden. Resultatet påvisar om att gårdsbaserad textilproduktion har förekommit i Birkas omland och ett fåtalet gårdar i omlandet tolkas ha haft möjlighet att exportera textilier till Birka. / This bachelor thesis is regarding spindle whorls and loom weights from late Iron Age-sites and Viking Age-sites in adjoining relation to the Viking Age town Birka. The basis of this thesis concerns in which amount spindle whorls and loom weights occur at Viking Age-sites in Birka's hinterland; it refers to geographical areas in Södermanland County and Uppland County. Spindle whorls influences the textile raw materials and the spun threads, furthermore loom weights influences the warp and the woven cloths. Which threads and which cloth that were produced at the Viking Age-sites in adjoining relation to Birka will be discussed by regarding the weight, form and size of the spindle whorls and loom weights (though fragmental artifacts occur). The thesis will concern trails of textile production from Birka's hinterland and furthermore an investigation about domestic imports of textiles from the mainland to Birka could have oocurred during the Viking Age. The Results indicates that farmbased textileproduction has occured in Birka's hinterland and furthermore numerous of the farms in the hinterland can be discussed as farms with the possibility to export textiles to Birka.

Silk-weaving in Sweden during the 19th century. Textiles and texts - An evaluation of the source material. With the rich material available, 19th century silk-weaving invites to studies on industrialisation processes. The purpose of this licentiate thesis is to present and discuss an empirical material regarding silk production in Sweden in the 19th century, to examine the possibilities and problems of different kinds of materials when used as source materials, and to describe how this material can be systematized and analysed in relation to the perspective of a textile scientific interpretation. The introductory sections of the thesis provide a background to textile research and the subject of textile science. This is followed by an overview of previous research on silk-weaving in Sweden and a historical overview of silk-weaving in Sweden, the Jacquard machine, and the K.A. Almgren Sidenväveri, where large parts of the source material have been preserved. After these overviews, the research material is described and systematized: first the main materials, textiles, machines and other objects, and then the various written sources. By way of conclusion, the empirical material is summarized in a critical discussion where the various groups of materials are evaluated in comparison to one another. A discussion on theory and methodology regarding objects as sources and the use of experience-based knowledge in academic research is developed in connection to the critical discussion. Finally, the potential of the material is demonstrated through a textile example. The presentation is an introduction to the cultural-historical analysis that will follow in the PhD thesis. Here, the empirical material will be analysed through the use of knowledge in handicrafts, which may create new dimensions of silk production in Sweden and the complexity of the industrialisation process.