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open-source-hardware-projects-2018-note This is also partially a view through the lens of the Open Source Hardware User Group, with the original idea being to mark ten years since the first meeting. Policies were outlined that provide nations 218 a template for strategically harvesting the opportunities provided by the free and open source paradigm. Remember me on this computer. Arduino open source hardware projects 2018 note are able to read inputs — light on a sensor, a finger on a button, or a Twitter message — and turn it into an output — activating a motor, turning on an LED, publishing something online. You'll find them in The Open Source Hardware Projects 2018 Error Self-Reliance Catalog ; a hradware curated collection of the best ptojects, tools, shelters and open source hardware projects 2018 note for self-reliance and resilience. This post is already much longer than originally intended and there is plenty more to be covered via future posts.

The clip system was tested for mechanical stress test to establish a minimum lifetime of openings, a cleaning test, and a supply chain test.

The designs were also tested three times in field conditions. The design cost and functionalities of the clip system were compared to commercial systems. This study presents an innovative custom-designed clip system that can aid in attaching different tools for personal exposure measurement to a worker's harness without hindering the operation of the worker.

The customizable clip system opens new possibilities for occupational health professionals since the basic design can be altered to hold different kinds of samplers and tools. The solution is shared using an open source methodology. Open source arc analyzer: Multi-sensor monitoring of wire arc additive manufacturing.

Low-cost gas metal arc wire GMAW -based 3-D printing enables wire arc additive manufacturing WAAM for near net shape applications, but has limited resolution due to the complexities of the arcing process. To begin to monitor and thus control these complexities , the initial designs of the open source GMAW 3-D printer have evolved to include current and voltage monitoring.

Building on this prior work, in this study, the design, fabrication and use of the open source arc analyzer is described. The arc analyzer is a multi-sensor monitoring system for quantifying the processing during WAAM, which includes voltage, current, sound, light intensity, radio frequency, and temperature data outputs.

The open source arc analyzer is tested here on aluminum WAAM by varying Open Source Hardware Projects 2018 Windows wire feed rate and measuring the resultant changes in the sensor data. Visual inspection and microstructural Open Source Hardware Projects 2018 Year analysis of the printed samples looking for the presence of porosity are used as the physical indicators of quality.

The value of the sensors was assessed and the most impactful sensors were found to be the light and radio frequency sensors, which showed arc extinction events and a characteristic ''good weld" peak frequency. Aliaksei Petsiuk. Economic savings for scientific free and open source technology: A review.

Both the free and open source software FOSS as well as the distributed digital manufacturing of free and open source hardware FOSH has shown particular promise among scientists for developing custom scientific tools.

Early research Early research found substantial economic savings for these technologies, but as the open source design paradigm has grown by orders of magnitude it is possible that the savings observed in the early work was isolated to special cases.

Today there are examples of open source technology for science in the vast majority of disciplines and several resources dedicated specifically to publishing them.

Do the tremendous economic savings observed earlier hold today? To answer that question, this study evaluates free and open source technologies in the two repositories compared to proprietary functionally-equivalent tools as a function of their use of Arduino-based electronics, RepRap-class 3-D printing, as well as the combination of the two. The results provide strong evidence for financial support of open source hardware and software development for the sciences.

Given the overwhelming economic advantages of free and open source technologies, it appears financially responsible to divert funding of proprietary scientific tools and their development in favor of FOSH. Policies were outlined that provide nations with a template for strategically harvesting the opportunities provided by the free and open source paradigm. Access to nasopharyngeal swabs for sampling remain a bottleneck in some regions for COVID testing.

This study develops a distributed manufacturing solution using only an open source manufacturing tool chain consisting of two types of This study develops a distributed manufacturing solution using only an open source manufacturing tool chain consisting of two types of open source 3-D printing and batch UV curing, and provides a parametric fully free design of a nasopharyngeal swab. The swab was designed using Open Source Hardware Projects 2018 Crack parametric OpenSCAD in two components a head with engineered break point and various handles , which has several advantages: i minimizing print time on relatively slow SLA printers, ii enabling the use of smaller print volume open source SLA printers, iii reducing the amount of relatively expensive UV resin, and iv enabling production of handle on more accessible material extrusion 3-D printers.

The results of the mechanical validation tests showed that the swabs could withstand greater forces than would be expected in normal clinical use.

The swabs were also able to absorb a significant amounts of synthetic mucus materials and passed abrasion and handling tests. The results show the open source swab are promising candidates for clinical trials.

Thermal sterilization is generally avoided for 3-D printed components because of the relatively low deformation temperatures for common thermoplastics used for material extrusion-based additive manufacturing. There are several high temperature printers on the market, but their high costs make them inaccessible for full home-based distributed manufacturing required during pandemic lockdowns. As a case study, open source face masks were 3-D printed in PEKK and shown not to warp upon widely home-accessible oven-based sterilization.

Partially RepRapable automated open source bag valve mask-based ventilator. This study describes the development of a simple and easy-to-build portable automated bag valve mask BVM compression system, which, during acute shortages and supply chain disruptions can serve as a temporary emergency ventilator.

The resuscitation system is based on the Arduino controller with a real-time operating system installed on a largely RepRap 3-D printable parametric component-based structure.

The system is designed for reliability and scalability of measurement circuits through the use of the serial peripheral interface and has the ability to connect additional hardware due to the object-oriented algorithmic approach.

Experimental results after testing on an artificial lung for peak inspiratory pressure PIP , respiratory rate RR , positive end-expiratory pressure PEEP , tidal volume, proximal pressure, and lung pressure demonstrate repeatability and accuracy exceeding human capabilities in BVM-based manual ventilation. Future work is necessary to further develop and test the system to make it acceptable for deployment outside of emergencies such as with COVID pandemic in clinical environments, however, the nature of the design is such that desired features are relatively easy to add using protocols and parametric design files provided.

Samantha Dertinger. The importance of quality of the measured values is very dependent on the device that measures these values: the size of the sample, the time of measurement, periods of measurement, the mobility and the robustness of the device, etc The importance of quality of the measured values is very dependent on the device that measures these values: the size of the sample, the time of measurement, periods of measurement, the mobility and the robustness of the device, etc.

Contemporary devices intended for the measurement of physical quantities that are on the market vary in price, as well as and the quality of the measured values.

In this paper, a device based on "Open Source" components of hardware and software will be presented. Device was used to measure voltages and currents on low voltage networks, on which a virtually unlimited number of sensors can be added, and the device is assembled of components available on electronic components Internet. The paper describes an open source computer vision-based hardware structure and software algorithm, which analyzes layer-wise 3-D printing processes, tracks printing errors, and generates appropriate printer actions to improve The paper describes an open source computer vision-based hardware structure and software algorithm, which analyzes layer-wise 3-D printing processes, tracks printing errors, and generates appropriate printer actions to improve reliability.

This approach is built upon multiple-stage monocular image examination, which allows monitoring both the external shape of the printed object and internal structure of its layers. Starting with the side-view height validation, the developed program analyzes the virtual top view for outer shell contour correspondence using the multi-template matching and iterative closest point algorithms, as well as inner layer texture quality clustering the spatial-frequency filter responses with Gaussian mixture models and segmenting structural anomalies with the agglomerative hierarchical clustering algorithm.

This allows evaluation of both global and local parameters of the printing modes. The experimentally verified analysis time per layer is less than one minute, which can be considered a quasi-real-time process for large prints. The systems can work as an intelligent printing suspension tool designed to save time and material. However, the results show the algorithm provides a means to systematize in situ printing data as a first step in a fully open source failure correction algorithm for additive manufacturing.

Conversion of self-contained breathing apparatus mask to open source powered air-purifying particulate respirator for fire fighter COVID response. To assist firefighters and other first responders to use their existing equipment for respiration during the COVID pandemic without using single-use, low-supply, masks, this study outlines an open source kit to convert a To assist firefighters and other first responders to use their existing equipment for respiration during the COVID pandemic without using single-use, low-supply, masks, this study outlines an open source kit to convert a 3M-manufactured Scott Safety self-contained breathing apparatus SCBA into a powered air-purifying particulate respirator PAPR.

The parametric designs allow for adaptation to other core components and can be custom fit specifically to fire-fighter equipment, including their suspenders. The open source PAPR has controllable air flow and its design enables breathing even if the fan is disconnected or if the battery dies.

What if food production could be automated? Together we can take back ownership of our food, localize production, and feed 9 billion people sustainably. PirateBox is a DIY anonymous offline file-sharing and communications system built with free software and inexpensive off-the-shelf hardware. It allows users to share files anonymously. Also check out LibraryBox , a fork of PirateBox customized for educational, library, and other needs.

We are a worldwide community of farmers that build and modify our own tools. We share our hacks online and at meet ups because we become better farmers when we work together. Designed to be downloaded and made locally, Opendesk furniture is fast, affordable, sustainable and made on demand, just for you.

Arduino is an open-source electronics platform based on easy-to-use hardware and software. Arduino has been used in thousands of different projects and applications. Arduino boards are able to read inputs — light on a sensor, a finger on a button, or a Twitter message — and turn it into an output — activating a motor, turning on an LED, publishing something online. Also check out Local Motors , another community of enthusiasts building cool machines together.

Project Ara is the codename for an initiative by Google that aims to develop an open hardware platform for creating highly modular smartphones. RepRap takes the form of a free desktop 3D printer capable of printing plastic objects. Since many parts of RepRap are made from plastic and RepRap prints those parts, RepRap self-replicates by making a kit of itself — a kit that anyone can assemble given time and materials.

OpenKnit is an open-source, low cost, digital fabrication tool that affords the user the opportunity to create his own bespoke clothing from digital files. Starting from the raw material, the yarn, and straight to its end use, a sweater for example, in about an hour. Designing and producing clothes digitally and wearing them can now happen in the very same place, rewarding the user with the ability to make decisions regarding creativity and responsibility.

Controllable by smartphone or tablet. OpenROV is an open-source, low-cost underwater robot for exploration and education. This is the full-featured, open-source multicopter UAV controller that won the Sparkfun and Autonomous Vehicle Competition dominating with the top five spots.

A team of developers from around the globe are constantly improving and refining the performance and capabilities of Copter. The aim of the Open Hand Project is to make robotic prosthetic hands more accessible to amputees.

If all of us keep feeding our energy into the current system of Big Ag, Big Finance and Big Consumption, nothing will change. In November, in partnership with the founders of GraphQL , the Linux Foundation , and key participants in the community, we kicked off the process of forming the GraphQL foundation. Our open source program would be nothing without the tools that allow our project owners to deploy their projects quickly and with high quality.

The Facebook Open Source Tooling team continued to build and improve upon these tools. ShipIt allows project owners to both easily export code changes from our internal codebase to GitHub and import pull requests from the community. This provides consistency through automated synchronization. The team also developed new tools for community interaction , incorporation of GitHub issues into our internal workflows, and compliance of repo content across our entire project portfolio.

Looking ahead to , we will continue our commitment to open source and to bringing innovative technology to the community. This series of posts looks back on the engineering work and new technologies we released in Facebook believes in building community through open source technology. To help personalize content, tailor and measure ads, and provide a safer experience, we use cookies.

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