Posts by Stephen Holmes

Sand casting parts using 3D Printing brings digital detail to traditional process

Published 18 August 2014

Posted by Stephen Holmes

Article tagged with: 3d printing, automotive, manufacture, manufacturing, rapid manufacturing, exone, s-print, sand casting, grainger and worrall

Anthony Middleton of Grainger and Worrall shows explains the intricacies of 3D core printing

Far from the traditional image of a castings manufacturer, Grainger & Worrall (G&W) is working with some high end digital tools to provide bespoke prototyping solutions using rapid-tooled and tool-less digital processes.

One of the only independent UK casting business to employ in-house ExOne 3D sand printing and CT scanning technology as part of its rapid prototyping process, G&W is using these technologies to enable projects like fully-machined engine cylinder head development in less than six weeks.

Sand castings have been used in lots of different industries, the bronze age and the iron age, for example, wouldn’t have got far without them, but the modern version relies on complex metallurgical and chemical interactions, thermo and fluid dynamics.

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DST SimWise 4D expands its offerings to include FEA, Optimisation and CAD integration

Published 18 August 2014

Posted by Stephen Holmes

Article tagged with: simulation, simwise, dst

Despite calling itself a ‘value proposition’ DST SimWise 9.5 crams a lot into one package

Billing itself as the ‘affordable and flexible physics based simulation software for the professional and education markets’, DST has announced the availability of SimWise v9.5.

The release expands the FEA, CAD integration, and interoperability capabilities of the product, while optimisation tools have been improved to allow DSTDimension and other parameters from select CAD systems to be transferred to SimWise and used as optimisation variables.

The release introduces a new 3D FEA mesh generator from which users are told they can expect quicker results from FEA, Motion plus FEA simulations and optimisations that include FEA results.

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Making stuff: rotational moulding

Published 18 August 2014

Posted by Stephen Holmes

Article tagged with: maker, mould design, moulding, rotational moulding, mould making, rotomolder, pdd

A simple desktop rotomoulder like this is the baby of the bunch

Recently we paid a visit to London-based design consultancy PDD, and although we left having learned about its work on lots of various projects, one thing stuck in our mind - a mini rotational moulding machine.

‘Rotomoulding’ is a way of turning a liquid resin around inside the mould so that it eventually sets as a solid having thinly coated the form of the mould (but you already knew that), spinning and tumbling around, with occasional jerks and pauses to get the most consistent finish.

Despite being in the costly confines of West London, PDD still has space for a well equipped workshop, in which PDD’s principal for design development Mark Hester showed me the mini rotomoulding rig he’d built for moulding plastic bottles.

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3D depth scanner made by modding your smart phone

Published 15 August 2014

Posted by Stephen Holmes

Article tagged with: 3d scanning, microsoft, 3d scanner, mit, smart phone

Transforming a standard digital camera so it can perceive 3D depth of field

Research from Microsoft suggests that with a few modifications an ordinary digital camera, like the one on your smartphone, can be used as a 3D depth camera.

While efforts like Google’s Project Tango are planning on adding depth cameras into our mobile gadgets of the near future, Microsoft has been looking to make access to developing 3-D applications easier by lowering costs and technical barriers to entry for such devices.

As featured in the MIT Technology Review, a group of researchers modified web cameras by removing the near infrared filter (used in cameras to block unwanted light signals in pictures) before adding a filter that only allowed infrared light to pass, surrounding the lens with a ring of several cheap near-infrared LEDs.

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New knees - using a 3D printer to create bespoke ‘living’ joint cartilage

Published 15 August 2014

Posted by Stephen Holmes

Article tagged with: 3d printing, medical, medical design, bioprinting, rocky tuan, pittsburgh

The University of Pittsburgh School of Medicine is developing organic 3D printed cartilage using an EnvisionTEC Perfactory machine

That collective groan of relief you can hear is of the thousands of ex-sportmen (pro and amateur) around the world, hoping that their knees will once again work properly.

Rocky Tuan, PhD, is a professor and executive vice chairman of the department of orthopedic surgery as well as the director of the Center for Cellular and Molecular Engineering at the University of Pittsburgh School of Medicine - obviously a busy man - but he’s found time to develop organic 3D printed cartilage using an EnvisionTEC Perfactory machine.

This research is the first success of living human cartilage tissue composed atop a chip using 3D printing.

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MakersCAFE gets launch in hipster heart of Shoreditch

Published 15 August 2014

Posted by Stephen Holmes

Article tagged with: london, makers, maker, coffee, maker cafe, shoreditch

Makers will get their very own coffee bar in the middle of London

RazorLAB, an online laser cutting service, is opening its long dreamed of MakersCAFE in London’s hipster heartland: Half makerspace (laser cutters, 3D printers), half cafe (barista-style coffee).

It’s arrival is a strange mix of Shoreditch nightlife staples (The Jaguar Shoes Collective have ran bars and events in the area since before the age of skinny jeans) and hands on tech goodness (UntoThisLast, Hobs Studios)

Yet it’s prime location means that it’s sure to see some impressive footfall from some of the most arty, nonchalant types the city has to offer.

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3D Systems buys into manufacturing for aerospace

Published 15 August 2014

Posted by Stephen Holmes

Article tagged with: 3d printing, 3d systems, aerospace

American Precision Prototyping co-founder Jason Dickman shows the ability to prototype cockpit equipment using 3D printing

3D Systems has bought yet another diverse manufacturing services bureau, this time giving it the capabilities to better approach prototyping and manufacturing short-run parts for the aerospace industry..

By acquiring American Precision Prototyping (APP) and sister company American Precision Machining (APM), it now has two expert providers of rapid prototyping and advanced manufacturing, product development and engineering services with a significant presence in the cutting edge world of aerospace.

Headquartered in Tulsa, Oklahoma, APP and APM bring over 24 years of combined advanced prototyping and manufacturing service bureau experience, one which has helped change the way its industry quotes and purchases rapid prototype and rapid manufactured parts.

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