jueves, 13 de julio de 2017

¿Can 3D Printing get married with traditional technologies?

More and more, Additive Manufacturing is now seen as a complementary technology, as witnessed by the increased in hybrid printers that combine 3D Printing and CNC machining.

Now, Stratasys, one of the leading players in the 3D printing industry, is sharing some of that expertise via a new whitepaper titled "How Additive and Traditional Manufacturing Mix".

The whitepaper is free to download from 3dprint.com after you fill out a brief form, by clicking here: https://3dprint.com/stratasys-how-additive-and-traditional-manufacturing-mix/.

miércoles, 12 de julio de 2017

Introduction to Additive Manufacturing for Composites

Additively manufactured composites offer advantages that include greater design flexibility, decreased costs and production efficiency. In this e-book, you’ll learn more about:

  • Reinforced thermoplastics for high-performance applications
  • Multi-axis motion platforms for design optimization
  • Lightweight, agile mold tooling capabilities
  • Sacrificial tooling for easier production of hollow composites
  • Autoclave cure- and high-temperature-capable materials

Download this FREE e-book to learn how additive manufacturing enables a new era of lightweight structures with degrees of geometric complexity, part consolidation, and design optimization not previously possible.

 Click on the Image to Download your FREE e-Book

jueves, 6 de julio de 2017

Low-cost approaches to UAV design using Additive Manufacturing

Unmanned Aerial Vehicle (UAV) platforms are of major interest to Defense, Government, and commercial industries. The ability to remotely control an aerial vehicle capable of surveillance, offensive and defensive maneuvering, reconnaissance, or numerous other applications without the need to put a human life in jeopardy is a major attraction to their use. Furthermore, there exists opportunities to make these airborne vehicles largely autonomous, further reducing the need for even remote human operators. However, for all of the significant advantages of UAVs, there is a significant negative: the cost of manufacture, and the cost of design. Due in part to the substantial amount of complex electronic equipment on board, UAVs become not only a design of aeronautics, but an experiment in energy conservation through optimization. A limited range of UAV power becomes a limiting factor of UAV application. The challenge becomes to optimize the size, weight, and aerodynamics of the UAV based on the application. 

domingo, 25 de junio de 2017

Trump may take a hard line with Pakistan

Even though the US Government was unable to defeat the Taliban with 100.000 troops in the country, apparently Trump thinks that by taking a harder line with Pakistan and sending a few thousand more troops to Afghanistan he is going to pressure the Taliban into making peace.

The result will probably be for Pakistan to create more difficulties for the US Government in Afghanistan and also a point blank refusal to allow any drone attacks, as a majority of the Pakistani public would support such a move. However, the United States claims that the Pakistani spy agency the Inter-Services Intelligence (ISI) has ties to the Haqqani network of militants who are thought to be responsible for some deadly attacks in Afghanistan. The Afghan Government too has accused Pakistan as giving safe haven to the militants. Pakistan Government denies this, as they have lost about 7.000 of its security forces and about 22.000 civilians as a result of militant activity since 2003.

There are some within the US Government and in various think tanks who do not consider Pakistan an ally at all:

  • The Pentagon designated the Haggani network that Pakistan is alleged to support, as "terrorist organization" in 2012.
  • Navy Admiral Mike Mullen, a top U.S. military officer, told the U.S. Congress in 2011 that the Haqqani net was a veritable arm of the Pakistani ISI.
  • David Sedney, who was Obama's deputy assistant secretary of defense for Afghanistan from 2009 to 2013, claims that Obama's attempt to make Pakistan a strategic partner failed miserably and said that it made Pakistan's behavior even worse.

But this appears very one-sided: Pakistan in effect allowed UAV attacks on its territory in the face of tremendous political opposition. It also eventually carried out military operations in the territories that were quite costly in casualties for their security forces.

The U.S. has given considerable aid to Pakistan since 2002: $33 billion and that included Coalition Support Funds (CSF) that is meant to reimburse allies that incurred costs in supporting counter-insurgency operations. Pakistan did incur heavy costs in its operations in conflicts with various militant groups in the tribal areas of north-west Pakistan. However, the U.S. argues that Pakistan has failed to take action against the Haqqani network and last year withheld $300 million in CSF funding to Pakistan. US officials say the Trump administration may do the same... But also warns that moves such as this would encourage China to invest even more than the $60 billion it has already invested in Pakistan.

India to Purchase 22 Predator

According to The Diplomat, the Indian Government had expressed interest in purchasing an unarmed naval variant of the Predator already before 2015. However, the United States rejected India’s request because the country was neither member of the Missile Technology Control Regime (MTCR) nor did it enjoy Major Defense Partner (MDP) status.

Now, the US Government has approved the deal, which is valued at over $2 billion. The deal, still pending congressional approval, would be the first such purchase by a country that is not a member of the NATO alliance. With these new UAVs, India seeks to protect its maritime assets, in particular in the Indian Ocean, and detect intrusions on a real-time basis.

Next to the threat of terrorism emerging from the maritime domain, India has been in particular concerned about the growing Chinese naval presence in the Indian Ocean.

UAV designs ready to be 3D printed

A very good collection which includes custom UAV models ready for real life usage thanks to 3D printing technology.