Portable, high-res 3D imaging tech
MIT researchers have improved a gel technology that can image microscopic features without expensive equipment, opening up applications in forensics, medicine, and other fields.
Developed by Edward Adelson, Micah Johnson, and colleagues, GelSight acquires surface textures and shapes by pressing a block of clear rubber onto them, revealing striking 3D details. It can even visualize a pulse when pressed on a wrist.
Originally presented in 2009, the technology has been improved to resolve features as small as 2 microns across and is being presented in a paper (PDF) at this week’s Siggraph 2011 computer graphics conference in Vancouver, British Columbia.
When an object is pressed against the clear rubber, its reflective skin on one side distorts to assume the shape of the object. The skin is coated with paint that contains flecks of metal that are smaller than the features they resolve.
Portable, high-res 3D imaging tech - [Link]
Baolab Microsystems has developed innovative, pure CMOS MEMS devices that use Lorentz force sensors to detect the strength and direction of the Earth’s magnetic field. The new 3D Digital NanoCompass™ technology matches existing performance benchmarks for sensitivity, power consumption and package size at dramatically lower cost. An additional unique feature is autocalibration for consistent accuracy.
The new compass chips utilise Baolab’s NanoEMS™ technology, which allows nanoscale MEMS devices to be fabricated using standard high-volume CMOS lines and fully integrated monolithically with analogue and digital electronics. The MEMS elements are defined within the existing metal interconnect layers on the wafer as part of the normal CMOS production process. Conventional 3D compass devices typically use magnetoresistive materials or Hall-effect devices combined with magnetic field concentrators to detect the direction of the Earth’s magnetic field. [via]
Novel 3D digital MEMS compass fabricated in CMOS - [Link]
Open source 3D printers are multiplying like gray goo! here is an extruded-aluminum one. [via]
CubeSpawn – [Link]
RS Components has released PCB Converter for SketchUp, a software tool that converts CAD files in Intermediate Data Format (IDF) to Collada format for use in SketchUp. This enables designers to use SketchUp as a 3D CAD back-end for to PCB design and brings SketchUp into the electronic product design realm. [via]
Converter for Google SketchUp gives PCB designers 3D eCAD functionality – [Link]
Earlier today Intel announced that its 22nm process would not use conventional planar transistors but rather be the first time Intel is using 3D Tri-Gate transistors. This is a huge announcement that fuels Intel’s leadership in the mobile/desktop/server CPU space and makes it a lot more attractive in the SoC space, let’s understand why.
Intel Announces first 22nm 3D Tri-Gate Transistors – [Link]
Autodesk 123D – Free 3D Modeling Software, 3D Models, DIY Projects, Personal Fabrication Tools [via]
123D is a free solid modeling software program based on the same Autodesk technology used by millions of designers and engineers worldwide. Not an engineer? No problem, with Autodesk 123D you can design precise and makeable objects using smart tools that let you start with simple shapes and then edit and then tweak them into more complex shapes.
Autodesk 123D – Free 3D Modeling Software, 3D Models, DIY Projects – [Link]
Drone writes: Now you can 3D print in glazed ceramics at Shapeways. Great! I need some big HV insulators for the electric chair I’m building. Interestingly, prices are based on surface area. [via]
Glazed Ceramics is perfect for any application such as a plate, cup or bowl as it is the first 3D printed food safe material available on Shapeways. Shapeways 3D Printed Glazed Ceramics material properties are exactly the same as standard ceramics as it is produced with fine ceramic powder which is bound together with binder, fired, glazed with lead-free, non-toxic gloss finish.
3D printed glazed ceramics – [Link]
Printers capable of producing three-dimensional objects have been available for years. However, at the Vienna University of Technology, a printing device has now been developed that’s smaller, lighter and cheaper than ordinary 3D printers. With this kind of printer, everyone could produce small, tailor-made 3D objects at home, using building plans from the Internet – and this could save money for expensive custom-built spare parts. [via]
Smallest 3D Printer in the World – [Link]
The basic principle of the 3D-printer is quite simple: The desired object is printed in a small tub filled with synthetic resin. The resin has a very special property: It hardens precisely where it is illuminated with intense beams of light. Layer for layer, the synthetic resin is irradiated at exactly the right spots. When one layer hardens, the next layer can be attached to it, until the object is completed. This method is called “additive manufacturing technology”. “This way, we can even produce complicated geometrical objects with an intricate inner structure, which could never be made using casting techniques”, Klaus Stadlmann explains. He developed the prototype together with Markus Hatzenbichler.
This method is not designed for large-scale production of bulk articles – for that, there are cheaper alternatives. The great advantage of additive manufacturing is the fact that is offers the possibility to produce taylor-made, individually adjusted items. The prototype of the printer is no bigger than a carton of milk, it weighs 1.5 kilograms, and at just 1200 Euros, it was remarkably cheap. “We will continue to reduce the size of the printer, and the price will definitely decrease too, if it is produced in large quantities”, Klaus Stadlmann believes.
The World’s Smallest 3D Printer – [Link]