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Scientists build a low-cost, open-source 3-D metal printer OK, so maybe you aren't interested in making your own toys, cellphone cases, or glow-in-the-dark Christmas decorations. How about a brake drum? Until now, 3D printing has been a polymer affair, with most people in the maker community using the machines to make all manner of plastic consumer goods, from tent stakes to chess sets. A new low-cost 3D printer developed by Michigan Technological University's Joshua Pearce and his team could add hammers to that list. Pearce is the first to admit that his new printer is a work in progress. Using under $1,500 worth of materials, including a small commercial MIG welder and an open-source microcontroller, Pearce's team built a 3D metal printer than can lay down thin layers of steel to form complex geometric objects. His make-it-yourself metal printer is less expensive than off-the-shelf commercial plastic 3D printers and is affordable enough for home use, he said. Explore further: 3-D printing: Making your own saves energy, scientist says

The Printer That Can Print A 2,500 Square Foot House In 20 Hours. We have seen huge advancements in 3D printing. We’ve even seen oversized wrenches printed that measure 1.2 meters in length. Now, we can print an entire 2,500 sqft house in 20 hours. In the TED Talk video below, Behrokh Khoshnevis, a professor of Industrial & Systems Engineering at the University of Southern California (USC), demonstrates automated construction, using 3D printers to build an entire house in 20 hours. In manufacturing we use a process called CAD/CAM (computer-aided design / computer-aided manufacturing). 3D models are designed on a computer and then manufactured using CNC Machines or 3D printers. In this video, we see a prototype of a machine called ‘Contour Crafting’ Michael Cooney Michael Cooney, the founder of EngNet, worked as a project engineer for many years sourcing equipment.

world's first 3D printed metal gun successfully fires 50 bullets nov 08, 2013 world's first 3D printed metal gun successfully fires 50 bullets world’s first 3D printed metal gun successfully fires 50 rounds of bulletsall images courtesy solid concepts 3D printing service leader solid concepts has manufactured the world’s first 3D printed metal gun using a laser sintering process and powdered metals. the semi-automatic pistol is based off the design of a classic 1911 and has already successfully fired over 50 rounds of bullets without breaking. the fire-weapon is constructed with 33 17-4 stainless steel and inconel 625 components, and features a carbon-fiber filled nylon hand grip. ‘the whole concept of using a selective laser sintering process to 3D print a metal gun revolves around proving the reliability, accuracy and usability of metal 3D printing as functional prototypes and end use products,‘ says kent firestone, vice president of additive manufacturing at solid concepts. detail of the 3D printed .45 caliber pistol rodrigo caula I designboom

3D Printer Kit 3D Printer Kit » DIY 3D Printer 3D Printer Kit DIY Plans The following sources are open source 3D printer kit designs at time published. The sources provide a summary, mechanics, electronics, software files, how to, tools, and updates on how to build a 3D printer. These are “do it yourself” (DIY) 3D printer plans and building instructions. Most of the open sourced 3D printer kit sources are under GNU free documentation license. Darwin (RepRap) 3D Printer KitMendel 3D Printer KitPrusa 3D Printer KitHuxley 3D Printer KitHelium 3D Printer KitCustomizable Thing 3D Printer KitSteampunk 3D PrinterModel One 3D Printer KitModel Two 3D Printer KitEventorbot 3D Printer Kit The purpose of GNU free documentation license is to make a manual, textbook, or other functional and useful document “free” in the sense of freedom: to assure everyone the effective freedom to copy and redistribute it, with or without modifying it, either commercially or noncommercially.

Firefighting Robot Paints 3D Thermal Imaging Picture for Rescuers Engineers in the Coordinated Robotics Lab at the University of California, San Diego, have developed new image processing techniques for rapid exploration and characterization of structural fires by small Segway-like robotic vehicles. A sophisticated on-board software system takes the thermal data recorded by the robot’s small infrared camera and maps it onto a 3D scene constructed from the images taken by a pair of stereo RGB cameras. This allows small mobile robotic vehicles to create a virtual reality picture that includes a 3D map and temperature data that can be used immediately by first responders as the robot drives through a building on fire. The research is part of a plan to develop novel robotic scouts that can help firefighters to assist in residential and commercial blazes. Researchers will present their results at the International Conference on Robotics and Automation to be held from May 31 to June 5, 2014, in Hong Kong. Computer scientists in Prof.

3D-Printed Human Cells Will Replace Animal Testing in Five Years, Says Bioengineer Expert 3D-printing could soon bring about an end to animal abuse in drug testing, according to bioengineering expert Alan Faulkner-Jones. Speaking at the 3D Printshow Hospital in London, the Heriot Watt University researcher said that 3D-printed human cells could eliminate the need to test new drugs on animals as soon as 2018. Using a bio-printer hacked together from a MakerBot printer, Faulkner-Jones demonstrated how human stem cells can be printed into micro-tissues and micro-organs. Faulkner-Jones believes the technology could replace cruel and often inaccurate animal testing within five years. What’s more, it may also become possible to personalize drugs by testing them with the cells of the person who actually needs them.

3d print a building 1. Types of 3D printers (SLA, FDM, SLS and Z-printers) StereoLithogrAphy (SLA) The first 3d Printer, built in 1983 by Chuck Hull was using SLA technology to print with a photoplymer. Layer by layer, a liquid polymer is exposed to light from a low-power laser and hardens locally. Traditionally a very expensive technology using expensive polymers, recently it became affordable through the Formlab Form 1: Fused deposition modeling (FDM) A very popular technology developed in the 80s by Scott Crump and widely available today after the expiration of patents when the large Rep-Rap open-source community started to develop affordable machines using this technology. The material is supplied as a roll of filament (generally ABS or PLA), a hot nozzle melts it, extrudes it and deposes it in layers to build up a 3d model. Selective laser sintering (SLS) and other variations (DMLS, SHS, SLM, EBM) Developed in the mid 80s by Carl Deckard in Austin, Texas. Plaster-bed printing (PP) 2. 1. 2. 3. Like this:

DIY BioPrinter, une imprimante 3D biologique à la maison « MakingSociety Le hackerspace BioCurious vient de mettre en ligne des instructions pas-à-pas pour fabriquer son imprimante 3D biologique à la maison. Toutes les étapes sont partagées librement sur le site Instructables. Patrick D'haeseleer est un scientifique amateur américain d'origine belge et membre actif du hackerspace BioCurious, un espace collectif spécialisé en hacking biologique basé à Sunnyvale en Californie. Avec un petit groupe de passionnés, ils ont mis au point le DIY BioPrinter. Le DIY BioPrinter de BioCurious. Photo : Patrick D'haeseleer. Cette machine permet d'imprimer des organismes vivants. Le fonctionnement du BioPrinter DIY est somme toute très simple. Cette technique est déjà utilisée dans le champ médical. Il a notamment expliqué sa démarche lors de deux conférences TED spectaculaires. L'entreprise Organovo s'est de son côté spécialisée dans la fabrication et la commercialisation de ces imprimantes 3D. Crédit : Organovo©