Prototyping Techniques Research Articles

Development of a treated cardboard wastes injection machine into the sandy soils

This study aimed to evaluate a new prototype for an injection machine that works in sandy soils using treated cardboard waste. The tests were divided into three major categories: The first one was a performance evaluation of the new injection prototype. Secondly, study the effect of adding the treated cardboard to the sandy subsoil on reducing the irrigation levels and increasing the moisture content in the root zone of cultivated plants. As well, investigate sandy soil water storage efficiency and its impact on improving the soil’s properties. Thirdly, measurements on water-sensitive crop yields, like potatoes. The new prototype technique was designed based on using an automatic control system that is integrated to precisely control the injection discharge rate. So, the injection operation is proportionally synchronized with the tractor's forward speed. The field experiments were carried out at 0.24, 0.40, 0.57 and 0.74 m sec-1 of tractor forward speeds with 250, 350 and 450 mm of furrow openers' subsoil depths at 140 and 200 mm of injection widths and 5 and 10% concentrations of cardboard solution. The main results indicated that the maximal consumed energy was 196.08 kWh ha-1 with a field efficiency of 89.05% and an optimal field capacity of 0.281 ha h-1 using the highest variable levels. In addition, the water saving percentage was 35.80%, while the water storage efficiency was 85.85%. Furthermore, the total economic costs were reduced by 13.88% compared to the traditional silt injection method for the tested control plots.

Critique and the Coloniality of Being: Rethinking Development Discourses of Encounter

Fleur Johns argues that the contraposition of a ‘bottom-up’ approach of politics of prototypical technique rather than the ‘top-down’ politics of the master plan or normative principle no longer seems as straightforwardly radical as it appeared when James C Scott posited the value of local knowledge or métis against grand plans of high modernization, just over 20 years ago. This paper seeks to follow Johns’ call, ‘to capture and probe some of the effects of sensibility, rationality or style widely reproduced in the details of development work’. It draws upon fieldwork in Nairobi to open up a discussion of a shift in sensibility from a ‘bottom-up’ or ‘postliberal’ approach to a framing of open-ended encounter. The paper critiques this imaginary of relational encounter by engaging contemporary work in critical black studies. It suggests that the problem of critique is that it reproduces the problems of governing imaginaries, continually seeking to rework the human subject via adaptive capacities, sensitivities to difference and openness to alterity, while leaving intact the coloniality of being, the antiblack world.

The use of co-production, co-design and co-creation to mobilise knowledge in the management of health conditions: a systematic review

BackgroundKnowledge mobilisation is a term used in healthcare research to describe the process of generating, sharing and using evidence. ‘Co’approaches, such as co-production, co-design and co-creation, have been proposed as a way of overcoming the knowledge to practice gap. There is a need to understand why researchers choose to adopt these approaches, how they achieve knowledge mobilisation in the management of health conditions, and the extent to which knowledge mobilisation is accomplished.MethodsStudies that explicitly used the terms co-production, co-design or co-creation to mobilise knowledge in the management of health conditions were included. Web of Science, EMBASE via OvidSP, MEDLINE via OvidSP and CINHAL via EBSCO databases were searched up to April 2021. Quality assessment was carried out using the Joanna Briggs Institute qualitative quality assessment checklist. Pluye and Hong’s seven steps for mixed studies reviews were followed. Data were synthesised using thematic synthesis.ResultsTwenty four international studies were included. These were qualitative studies, case studies and study protocols. Key aspects of ‘co’approaches were bringing people together as active and equal partners, valuing all types of knowledge, using creative approaches to understand and solve problems, and using iterative prototyping techniques. Authors articulated mechanisms of action that included developing a shared understanding, identifying and meeting needs, giving everyone a voice and sense of ownership, and creating trust and confidence. They believed these mechanisms could produce interventions that were relevant and acceptable to stakeholders, more useable and more likely to be implemented in healthcare. Varied activities were used to promote these mechanisms such as interviews and creative workshops. There appeared to be a lack of robust evaluation of the interventions produced so little evidence in this review that ‘co’approaches improved the management of health conditions.ConclusionThose using ‘co’approaches believed that they could achieve knowledge mobilisation through a number of mechanisms, but there was no evidence that these led to improved health. The framework of key aspects and mechanisms of ‘co’approaches developed here may help researchers to meet the principles of these approaches. There is a need for robust evaluation to identify whether ‘co’approaches produce improved health outcomes.Trial RegistrationPROSPERO CRD42020187463.

Development of a web application to control decubitus change in hospitalized patients

Objectives: to present a virtual prototype of a web application (WA), to assist the medical care team in controlling the change in position of patients with reduced mobility. Method: the technique of design and virtual prototyping was used to design this WA that will be presented, through the steps from the classic life cycle of software development. Therefore, the research will be classified as “nature” applied, of the normative type, as the interest is in the development of technologies, strategies and actions to mitigate the effects of pressure injuries in hospitalized patients. Results: it can be mentioned that the presented WA is a prototype that fills a gap in the care of patients with reduced mobility, as it helps in monitoring the change in decubitus and represents, therefore, an innovative and easy-to-use technology, as indicated in the end user test report. Conclusion: a decrease in pressure injuries and a significant improvement in patient comfort and safety is expected once this prototype is implemented in a real health care context.

Chatbots to Support Young Adults’ Mental Health: An Exploratory Study of Acceptability

Despite the prevalence of mental health conditions, stigma, lack of awareness, and limited resources impede access to care, creating a need to improve mental health support. The recent surge in scientific and commercial interest in conversational agents and their potential to improve diagnosis and treatment seems a potentially fruitful area in this respect, particularly for young adults who widely use such systems in other contexts. Yet, there is little research that considers the acceptability of conversational agents in mental health. This study, therefore, presents three research activities that explore whether conversational agents and, in particular, chatbots can be an acceptable solution in mental healthcare for young adults. First, a survey of young adults (in a university setting) provides an understanding of the landscape of mental health in this age group and of their views around mental health technology, including chatbots. Second, a literature review synthesises current evidence relating to the acceptability of mental health conversational agents and points to future research priorities. Third, interviews with counsellors who work with young adults, supported by a chatbot prototype and user-centred design techniques, reveal the perceived benefits and potential roles of mental health chatbots from the perspective of mental health professionals, while suggesting preconditions for the acceptability of the technology. Taken together, these research activities: provide evidence that chatbots are an acceptable solution to offering mental health support for young adults; identify specific challenges relating to both the technology and environment; and argue for the application of user-centred approaches during development of mental health chatbots and more systematic and rigorous evaluations of the resulting solutions.

Compressive and Tensile Properties of ABS Material as a Function of 3D Printing Process Parameters

Additive Manufacturing (AM) technologies have been emerged as a fabrication method to obtain engineering components within a short span of time. 3D printing, also referred as additive layer manufacturing technology is one of the powerful methods of rapid prototyping (RP) technique that fabricates three-dimensional engineering components. fused deposition modelling (FDM) is one of the most commonly used additive manufacturing (AM) methods, with applications in modelling, prototyping, and production. Acrylonitrile–butadiene–styrene (ABS) is a widely used industrial thermoplastic that is also the most commonly used material in FDM technology. Understanding the impact of FDM build settings on material characteristics is essential for predicting the behaviour of ABS components. The purpose of this study is to determine the impact of specimen tensile and compressive behaviour on ABS components produced using FDM. The Ultimaker+2 printer is used to create ABS thermoplastic samples for the investigation. The samples are put through their tests using a modified form of ASTM D638 for tensile strength and ASTM D695 for compressive strength. An Instron testing machine is used to put the printed parts to the test. The approach employed was Design of Experiment (DOE). Three primary criteria are used in the plastics experiment: infill density, layer thickness, and infill pattern. We measured the tensile and compressive strengths of zigzag and gyroid specimens, as well as cross specimens. The highest compressive strength at break (25.01 MPa), Young's modulus (2.473 GPa), fracture strength (21.016 MPa), and ultimate tensile stress (23.1 MPa) were all discovered in a sample with 60% infill density, 0.05mm layer thickness, and a GYROID infill pattern.

Shrinkage of Biocomposite Material Specimens [HA/Bioplastic/Serisin] Printed using a 3D Printer using the Taguchi Method

The Fused Deposition Modeling in the rapid prototyping technique was modified using a paste-shaped material with biocomposite material. One of the correction factors for the printed test specimen results is shrinkage. The paste material used is hydroxyapatite [CA5(PO4)6(OH)2] and tapioca bioplastic. Besides these materials, sericin is added, which is produced from extracts from silkworm cocoons. The composition of the biocomposite paste used with the ratio of hydroxyapatite and bioplastic was 40:50, 50:50, 60:40, by adding 0.3% sericin to the hydroxyapatite solution. The parameters used in the printing process of the test specimens are the perimeter speed of 60 mm/s, the infill speed of 10 mm/s, and the layer height of 0.45 mm. The design in this test has dimensions of 100mm long, 25mm wide, and 3mm thick. The optimal shrinkage of the test specimens was analyzed using the Taguchi method. Specimen printing is done by using additive manufacturing method. The process is carried out using a Portabee three-dimensional printing machine that uses a FDM system modified to an Aqueous-Based Extrusion Fabrication (ABEF) system. The results obtained that the optimum composition for shrinkage of the biocomposite material was 50:50 with the addition of 0.3% sericin to the hydroxyapatite solution.

High-accuracy methodology for the integrative restoration of archaeological teeth by using reverse engineering techniques and rapid prototyping

The reconstruction of the original morphology of bones and teeth after sampling for physicochemical (e.g., radiocarbon and uranium series dating, stable isotope analysis, paleohistology, trace element analysis) and biomolecular analyses (e.g., ancient DNA, paleoproteomics) is appropriate in many contexts and compulsory when dealing with fossil human remains. The reconstruction protocols available to date are mostly based on manual re-integration of removed portions and can lead to an imprecise recovery of the original morphology.In this work, to restore the original external morphology of sampled teeth we used computed microtomography (microCT), reverse engineering (RE), computer-aided design (CAD) and rapid prototyping (RP) techniques to fabricate customized missing parts. The protocol was tested by performing the reconstruction of two Upper Palaeolithic human teeth from the archaeological excavations of Roccia San Sebastiano (Mondragone, Caserta, southern Italy) and Riparo I of Grotte Verdi di Pradis (Clauzetto, Pordenone, north-eastern Italy) (RSS2 and Pradis 1, respectively), which were sampled for physicochemical and biomolecular analyses.It involved a composite procedure consisting in: a) the microCT scanning of the original specimens; b) sampling; c) the microCT scanning of the specimens after sampling; d) the reconstruction of the digital 3D surfaces of the specimens before and after sampling; e) the creation of digital models of the missing/sampled portions by subtracting the 3D images of the preserved portions (after the sampling) from the images of the intact specimens (before the sampling) by using reverse engineering techniques; f) the prototyping of the missing/sampled portions to be integrated; g) the painting and application of the prototypes through the use of compatible and reversible adhesives.By following the proposed protocol, in addition to the fabrication of a physical element which is faithful to the original, it was possible to obtain a remarkable correspondence between the contact surfaces of the two portions (the original and the reconstructed one) without having to resort to any manipulation/adaptation of either element.

Use of 3D Printing technology for developing novel procedure to manufacture runner of Francis Turbine

Turbine having complex profiles has always been a challenge to the manufacturers. With possible errors while manufacturing and surface finishing, it is nearly impossible attaining the same profile of blades or buckets as suggested by the hydraulic design. Specifically in the case of Nepal the manufacturing of Francis turbine runners has been a challenge due to its complex profile and lack of state-of-the-art manufacturing facilities in the Nepalese metal manufacturing industries. Many attempts have been made in the past to manufacture these runners with the available resources. However, the developed turbines have been of smaller size and dimensions and the process used for fabrication have been limited to these small runners. So, for fabrication of the Francis turbine runners a new process has been developed. The process makes use of a rapid prototyping technique called additive manufacturing. The developed method has made the manufacturers easier to manufacture the runners of complex profiles and larger size. The steps from modifications of the cad model to 3D printing and workshop fabrication has been discussed in this paper.

Thermal, structural, and rheological modifications in recycled polyethylene terephthalate for a sustainable alternative source for additive manufacturing

AbstractThis work reports the thermal, rheological, and crystallographic structural behavior of recycled polyethylene terephthalate (rPET) derived from bottle waste. The intent is to optimize it to an upcoming source for additive manufacturing by modulating its behavior using a chain extender triphenyl phosphite (TPP), nanofiller montmorillonite (MMT K‐10), and catalyst antimony trioxide (Sb2O3). FT‐IR (Fourier Transform Infrared) analysis showed an increase in absorbance due to the Sb2O3. The thermal analysis of the rPET using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) ascertains a 10°C decrease in Tg with a substantial increase in the degradation onset of 7°C due to MMT content. The melt flow index (MFI) study showed an increase with a similar range in intrinsic viscosity and weight average molecular weight (Mw) due to the additives. The percentage crystallinity, interlayer distance, and average crystallite size are determined and analyzed by X‐ray diffraction (XRD) and DSC curves. The results are within the comparative range of both tests. The presence of Sb2O3 with higher MMT content showed agglomeration, and increased TPP showed low crystalline properties. These results provide that rPET can be altered to manufacture feedstock to suit different 3D printing techniques for prototyping.

Fabrication of cylindrical bone graft substitute supported by reduced graphene-oxide and nanocurcumin to promotes the bone tissue development

In this study, a prototype technique was used to develop cylindrical bone graft substitute (C-BGS) from gelatin (GEL) derived from fish skin, demineralized bone matrix (DBM) from fishbone, reduced graphene oxide (R-GO), and nanocurcumin (Nano-Cu) for their potential application in bone graft substitute. The impact of the inclusion of R-GO and Nano-Cu on the physicochemical characteristics, antibacterial, and in vitro properties of the C-BGS was assessed. The C-BGS showed compressive strength of 13.64 ± 0.20 (MPa) and elongation at break (%) of 23.76 ± 0.20. The antibacterial activity of C-BGS against E.coli and S.aureus was excellent. In vitro study, revealed 98% cell viability on the C-BGS. The C-BGS with physicochemical, antibacterial, and biocompatibility properties can tried as a bone graft substitute material.

Sacral Prosthesis Substitution as a System of Spinopelvic Reconstruction After Total Sacrectomy: Assessment Using the Finite Element Method

Following total sacrectomy, the continuity between the spine and pelvis is necessary for ambulation and to enable patients to resume daily living activities sooner during rehabilitation. Reconstructing spinopelvic stability after a total sacrectomy is a challenge that has not yet been overcome. Thus, the objectives of the present study are as follows:Establish a new system of reconstructing the spinopelvic region after a total sacrectomy using a rapid prototyping technique to design the sacral replacement pieces.Evaluate the biomechanical properties of this system.Study a new reconstruction system for the spinopelvic joint that reduces reconstruction failures after total sacrectomy, reducing postoperative complications and allowing early sitting and standing of these patients. A sacral replacement implant was designed according to an authentic clinical case of a patient who had undergone a total sacrectomy. Using the finite element method, a biomechanical study was carried of 2 reconstructions that had been performed using the new prosthetic. The results of the study were compared with 4 other reconstruction models. A maximum von Mises stress of 112 MPa and a vertical displacement of -0.13 mm in L5 were observed in the models of the sacral implant that had been generated. A maximum rigidity of 861.5 Nm/mm was observed in the models when assuming a reduction in rigidity of more than 85% with respect to the other models assessed. In all models, maximum tension was concentrated in the rods joining L5 with the screws anchored to the pelvis. The sacral prosthesis substitution after a total sacrectomy produced a profound reduction in stress in the instrumentation and the bone structure as well as smaller vertical displacement, the lowest values ever reported. These results indicated that the assembly was rigid and stable and would prevent the collapse of the spine in the pelvis. According to stress values, the replacement piece was not likely to rupture as a consequence of static load or implant fatigue.

A Soft Multi-Axis High Force Range Magnetic Tactile Sensor for Force Feedback in Robotic Surgical Systems.

This paper presents a multi-axis low-cost soft magnetic tactile sensor with a high force range for force feedback in robotic surgical systems. The proposed sensor is designed to fully decouple the output response for normal, shear and angular forces. The proposed sensor is fabricated using rapid prototyping techniques and utilizes Neodymium magnets embedded in an elastomer over Hall sensors such that their displacement produces a voltage change that can be used to calculate the applied force. The initial spacing between the magnets and the Hall sensors is optimized to achieve a large displacement range using finite element method (FEM) simulations. The experimental characterization of the proposed sensor is performed for applied force in normal, shear and 45° angular direction. The force sensitivity of the proposed sensor in normal, shear and angular directions is 16 mV/N, 30 mV/N and 81 mV/N, respectively, with minimum mechanical crosstalk. The force range for the normal, shear and angular direction is obtained as 0–20 N, 0–3.5 N and 0–1.5 N, respectively. The proposed sensor shows a perfectly linear behavior and a low hysteresis error of 8.3%, making it suitable for tactile sensing and biomedical applications. The effect of the material properties of the elastomer on force ranges and sensitivity values of the proposed sensor is also discussed.

Concurrent topology and fiber orientation optimization method for fiber-reinforced composites based on composite additive manufacturing

Additive manufacturing of fiber-reinforced composite (FRC) parts provides a new rapid prototyping technique for designs. However, restricted by the layer-by-layer style of additive manufacturing techniques, the designed fiber orientations should be parallel to the print plane, and that will result in a reduced design space for the orientation optimization. To enlarge the orientation design space under this constraint, this paper proposes a new optimization method for FRC parts. The optimized structure is composed of several groups of components, and the fiber orientation of each group of components is constrained to a specific plane. Based on the composite additive manufacturing technology, these components can be fabricated separately and joined together to form the whole structure. The number of the component groups (also the fiber print planes) is predefined. In this method, the structure is optimized by concurrently designing the topology, the components partitioning and the fiber orientations. The structural topology and components partitioning are described by the SIMP interpolation scheme and discrete material optimization (DMO) interpolation scheme, respectively. The discrete-continuous parameterization (DCP) method with two sub-intervals is applied in the orientation optimization to avoid the local optimum of the angle variables, and a unified formulation is given for the concurrent optimization design. Furthermore, a density projection strategy with self-adaptive threshold parameters for multi-material optimization problems is proposed to get the distinct component interfaces. A stable convergence can be obtained without manually adjusting the projection parameters during the optimization iterations. The corresponding angle filtering method is developed to smooth the optimized fiber orientations. Numerical examples and manufacturing experiments are presented to demonstrate the effectiveness of the proposed method.

Fresh fruit packaging design verification through virtual prototyping technique

This study developed a holistic packaging design methodology in the fresh fruit postharvest handling system based on virtual prototyping approach. The method examines the cardboard box compressive strength and fruit cooling rate performances of new designs before manufacturing. It involves computer aided graphics (CAG), computational structural dynamics (CSD), computational fluid dynamics (CFD) and computational heat transfer (CHT) methods. The virtual prototyping took only few hours to provide data on the carton compression strength, airflow resistance characteristics, produce cooling rate, spatiotemporal temperature and produce quality map in the cold chain. Six different (new and commercially available) designs were examined. The different carton designs performed almost equally in maintaining produce quality. The new packaging box design is more compact, hence, with a higher freight density (1720 kg more fruit per reefer than the commercial counterpart). It also enhanced the precooling process throughput (17% faster) and energy usage (30% less power usage).

Compact Microfluidic Platform with LED Light-Actuated Valves for Enzyme-Linked Immunosorbent Assay Automation.

Lab-on-a-chip devices incorporating valves and pumps can perform complex assays involving multiple reagents. However, the instruments used to drive these chips are complex and bulky. In this article, a new wax valve design that uses light from a light emitting diode (LED) for both opening and closing is reported. The valves and a pumping chamber are integrated in lab-on-a-foil chips that can be fabricated at low cost using rapid prototyping techniques. A chip for the implementation of enzyme-linked immunosorbent assays (ELISA) is designed. A porous nitrocellulose material is used for the immobilization of capture antibodies in the microchannel. A compact generic instrument with an array of 64 LEDs, a linear actuator to drive the pumping chamber, and absorbance detection for a colorimetric readout of the assay is also presented. Characterization of all the components and functionalities of the platform and the designed chip demonstrate their potential for assay automation.

Analysis of forming characteristics for dual phase steel under warm incremental forming process

The demand for rapid prototyping techniques has been increasing in the field of automotive for the manufacturing of various parts with dissimilar shapes. In the present work, experimental and numerical investigations have been performed on an automotive-grade DP steel using an incremental sheet forming process at Room Temperature (RT) and 400°C. Various formability parameters such as fracture forming limits, limiting wall angle, forming forces, thickness distribution, and geometrical accuracy have been analysed. The fracture limits of the material are evaluated by forming varying wall angled conical (VWACF), and pyramidal (VWAPF) frustums. The fracture limits of the material formed at 400°C have been found to be 14.06% higher compared to room temperature fracture limits. The limiting wall angles for VWACF and VWAPF are found to be 70.73° ± 1.41° and 67.97° ± 1.35°, which are also higher than the formed constant wall angled frustum. The forming forces measured from experimental and FE simulations are in good agreement with the predicted forming forces from Arene’s equation. The minimum thickness obtained from experimental and FE simulations are in good agreement with each other with an absolute error of less than 4.5% and 7% for VWACF and VWAPF.

Mechanical and biological behaviour of additive manufactured biomimetic biodegradable orthopaedic cortical screws

PurposeThe complications caused by metallic orthopaedic bone screws like stress-shielding effect, screw loosening, screw migration, higher density difference, painful reoperation and revision surgery for screw extraction can be overcome with the bioabsorbable bone screws. This study aims to use additive manufacturing (AM) technology to fabricate orthopaedic biodegradable cortical screws to reduce the bone-screw-related-complications.Design/methodology/approachThe fused filament fabrication technology (FFFT)-based AM technique is used to fabricate orthopaedic cortical screws. The influence of various process parameters like infill pattern, infill percentage, layer height, wall thickness and different biological solutions were observed on the compressive strength and degradation behaviour of cortical screws.FindingsThe porous lattice structures in cortical screws using the rapid prototyping technique were found to be better as porous screws can enhance bone growth and accelerate the osseointegration process with sufficient mechanical strength. The compressive strength and degradation rate of the screw is highly dependent on process parameters used during the fabrication of the screw. The compressive strength of screw is inversely proportional to the degradation rate of the cortical screw.Research limitations/implicationsThe present study is focused on cortical screws. Further different orthopaedic screws can be modified with the use of different rapid prototyping techniques.Originality/valueThe use of rapid prototyping techniques for patient-specific bone screw designs is scantly reported. This study uses FFFT-based AM technique to fabricate various infill patterns and porosity of cortical screws to enhance the design of orthopaedic cortical screws.

Grey relational analysis based optimization of process parameters for efficient performance of fused deposition modelling based 3D printer

Rapid prototyping techniques such as three-dimensional (3D) printing have rapidly gained popularity in industry since material layers are added rather than removed. Additive manufacturing creates objects from 3D CAD model data by layering materials, thus saving time and money. Fused deposition modelling (FDM) is the most often utilized additive manufacturing technology. To find the best parameters simultaneously affecting tensile strength, flexural strength, and wear resistance, this research aims to make use of grey relational analysis (GRA). In this investigation, the effect of different combinations of layer height, extruder temperature, infill percentage and print speed on the three mechanical properties is examined in depth. GRA optimization is used to find the ideal design factor levels for achieving the lowest wear rate while still providing the maximum possible tensile and flexural strength for the data obtained for sixteen experiments as per L16 orthogonal array. It is crucial to do Analysis of Variance (ANOVA) analysis in order to figure out the parameter contribution ratios. The grey relational grade (GRG) for any combination can be predicted quite accurately using regression analysis. The findings of the confirmation experiments demonstrated that the information gleaned from regression analysis is in line with that acquired from the experiments themselves.

From Point Cloud To Video Projection Mapping: Knowing Modern Architecture By Using Light Projection

Abstract The ClusterLab HeModern of the Università Iuav di Venezia has been working in recent years on the study, knowledge and conservation of 20th century architecture. This interdisciplinary research group (History of Architecture, Geomatics, Building Technology, Restoration Project) intends to investigate how to analyse and evaluate the state of conservation of the materials of which the modern architectural cultural heritage is composed by identifying specific application protocols for intervention, preservation and valorisation. In 2018, the collaboration between the above-mentioned ClusterLab, the LéaV of the Ecole nationale supérieure d’architecture in Versailles and the Archivio del Moderno of the Accademia di architettura in Mendrisio - Università della Svizzera italiana, culminated in the identification of the works and career of André Bloc as a case study. In the context of this study, the Tour, the Engineer’s posthumous work, was selected to serve as a sample for research on the methods of communication of the contents of the architecture, the survey procedures used and the elaborations obtained. So, after the survey campaign, which took place via topographic, laser scanning and photogrammetric methods, two different levels of restitution were conceived: the first, made according to the canonical graphic paper methods, represents the procedural and surveying information, the material characterisation and the state of decay; the second elevates the same contents by applying them to physical reality. In this phase, the research focused on the possibility of making the different projects collaborate through the technique of rapid prototyping and video projection mapping. This particular form of augmented reality was used to enrich, through the mediation of light projections, the sensory perception of the observers by adding more information and emphasising those of greatest interest, proposing an alternative way of storytelling. In fact, unlike other forms of augmented reality, in the case of video projection mapping, the observer has the possibility to interact continuously with the physical reality, whose character is static, while the transmission of data is dynamic and can range in heterogeneity. The elaborations produced were presented in form of a museum exhibit at the international conference “Arti e architettura. Il contributo di André Bloc 1950-1970”, which took place in the exhibition rooms of the Università Iuav di Venezia.