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For years, additive manufacturing and 3D printing have been put to work in India for concept modeling, design validation, prototyping, and some tooling. Organizations in the U.S., Germany, and other countries are pushing hard to adopt AM for production applications, with India showing similar interest. AM is the subject of a session at the 11th NASSCOM Design & Engineering Summit on September 26-27, 2019 in Bangalore. I’m excited about participating in this important event.
In 2018, AM in India was dominated by growing interest in metal AM systems, according to Mukesh Agarwala, managing director of 3D Product Development (3DPD) of Bangalore, India’s largest AM service provider. Agarwala contributes a summary on AM in India for publication in the annual Wohlers Report. He said that Indian organizations in the oil/gas and IT sectors are currently evaluating ways in which AM might help their businesses.
AM machines, materials, and services in India in 2018 were an estimated $100+ million, according to Agarwala. While this is not insignificant, it represents only about 1% of the global AM total of $9.8 billion, according to Wohlers Report 2019. Even so, the opportunity in India is vast. As more educational, research, and corporate entities understand the many benefits and competitive advantages that AM offers, adoption will increase to become significant.
We’re back from our summer break and have exciting news to share: we have a new and improved TPU offering! Plus, this rubber-like material is now available in the US!
Our Research Project Manager Giovanni Vleminckx has been working hard on getting this material ready for production, which is still fully flexible like the old TPU, but now even more resistant to abrasion and wear.
What are the main benefits of this material?
What is the rubber-like material?
Like our old rubber-like offering, items made with this material are able to bounce back to its original form. As Giovanni puts it, “TPU has an excellent shape memory. For example, you could drive over this TPU lattice cube, as well as the whole sphere, with a car and it would return to its original shape. This is a unique feature you would like to have in everything where you have these lattices incorporated, where you want to regain the shape that you originally have, but still have the possibility that your part can conform to certain deformations.”
Why use TPU?
TPU is great for prototypes or end-use parts. It’s great for fashion pieces, jewelry, shoe soles or squeezable gadgets. It’s already used by industries for applications that require good shock absorption, as well as applications such as air ducts, complex tubing, grippers, skiing goggles, and more.
What would you print in our new rubber-like material? Get started by uploading your 3D model!
I was looking to schedule the insert location and rotation of a Multiview Block in AutoCAD Architecture. They have location properties for x,y,z and rotation in the Properties Palette but, strangely, rotation is not an available MV Block property when creating a property set. I tried the Block and MInsert rotation properties (both have them) but they do not report the MV Block rotation. Some Properties in ACA are linked (one value used for multiple object types) but not those.
Pondered for a bit, searched the web, surely someone in the past couple of decades had solved this before? But no…
So I posted about it on the AutoCAD Architecture Forum. Within minutes David Koch, who I have known for years via forums/blogging and met at least once at AU, replied with an elegant workaround. He used a Formula Property Set to return the correct value (converted to degrees from radians too!).
Thanks David, a great example of sharing on the community forums in action!
How Faith Guynes Uses Laser Cutting To Save Time Making Custom Miniatures
Making furniture pieces of any size requires a fair amount
of labor, as the component pieces must be cut to exact sizes in order to
properly fit together and be level. When you set out to make miniatures,
however, the scale may be reduced but the need for precision is magnified.
Choosing Laser Cutting
Like many makers who find their way to laser cutting,
Note: Ray Huff, associate engineer at Wohlers Associates, authored the following.
The elastic behavior of polymers, coupled with the design freedom of AM, allows designers to produce some very interesting products. A single-material part can have rigid and springy features, all driven by design. A good example is a small catapult on display in our office. The coil around the main shaft provides the spring force for operating the catapult, although both parts are made of PA12. The image at the left shows the catapult loaded and ready to launch. The one at the right shows the catapult after launching the ball. Notice the coil spring and locking mechanism.
Recent applications have developed with this principle in mind, many using elastomers to amplify this behavior. An example is the latticed helmet liners developed by Riddell and Carbon. Using sophisticated software, designers produce thicker lattice members and meshes where more rigid behavior is needed. Thinner lattice members alloy more flex and shock absorption in other areas. Similar functionality is being developed by HP for use with TPU on its new Jet Fusion 5200 series machines. Lattice structures and hybrid flexible/rigid components are a relatively new frontier, but we expect to see more of these types of products in the near future.