Air-Powered Top Only Possible on a 3D Printer

One of the major reasons anyone would turn to a 3D printer, even if they have access to a machine shop, is that there are some shapes that are not possible to make with conventional “subtractive manufacturing” techniques. There are a few more obvious reasons a lot of us use 3D printers over conventional machining such as size and cost, but there’s another major reason that 3D printers are becoming more and more ubiquitous. [Crumbnumber1] at Make Anything’s 3D Printing Channel shows us how powerful 3D printers are at iterative design with his air-powered tops. They incorporate fan blades that allow you to spin the top up to very high speeds by blowing air down onto it.

Iterative design is the ability to rapidly make prototypes that build and improve upon the previous prototype, until you’re left with something that does the job you need. Even with a machine shop at your disposal, it can be expensive to set up all of the tooling for a part, only to find out that the part needs a change and the tooling you have won’t work anymore. This is where 3D printers can step in. Besides all of their other advantages, they’re great for rapid prototyping. [Crumbnumber1] made a box full of tops and was able to test many different designs before settling on one that performed above and beyond everything that came before it.

The video below is definitely worth checking out. The design process is well documented and serves as a great model for anyone looking to up their rapid prototyping game.

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From Audio, To 3D Printed Sculpture, And Back Again

Have you ever wondered what a song looks like? What it feels like in your hands?

Those odd questions have an answer that has taken shape over at [Reify], which has developed a way to turn sound waves into 3D-printed sculptures. These visualizations made manifest can be made from any audio — speeches, the ambience of a forest, classical music, a rocket launch — and rendered in coconut husk, plastic, bronze and more.

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Building Pneumatic Actuators With 3D Printed Molds

Pneumatic actuators offer interesting perspectives in applications like soft robotics and interaction design. [Aidan Leitch] makes his own pneumatic actuators from silicone rubber. His actuators contain embedded air channels that can be filled with pressurized air and completely collapse to a flat sheet when no pressure is applied. Continue reading “Building Pneumatic Actuators With 3D Printed Molds”

MakerBot Releases Their 6th Generation Of 3D Printers

Just in time for the back to school and holiday season, Makerbot has released their latest line of printers. The latest additions to the lineup include the new Makerbot Replicator+ and the Makerbot Replicator Mini+.

The release of these new printers marks MakerBot’s first major product release since the disastrous introduction of the 5th generation of MakerBots in early 2014. The 5th generation of MakerBots included the Replicator Mini, priced at $1300, the Replicator, priced at $2500, and the Replicator Z18, priced at $6500. Comparing the build volume of these printers with the rest of the 3D printer market, these printers were overpriced. The capabilities of these printers didn’t move many units, either (for instance, the printers could only print in PLA). Makerbot was at least wise enough to continue building the 4th generation Replicator 2X, a printer that was capable of dual extrusion and printing more demanding filaments.

The release of the Makerbot Replicator+ and the Makerbot Replicator Mini+ is the sixth generation of MakerBot printers and the first generation of MakerBot’s manufactured overseas. This new generation is a hardware improvement on several fronts and included a complete redesign of the Makerbot Replicator and the Replicator Mini. The Replicator Mini+ features a 28% larger build volume than the original MakerBot Replicator Mini and an easily removable Grip Build Surface that can be flexed to remove a printed part. The Replicator+ features a 22% larger build volume than the MakerBot Replicator and a new Grip Build Surface. The Replicator Mini+ is $1000 ($300 cheaper than its predecessor), and the Replicator+ is $2000 ($500 less expensive). Both new printers, and the old Replicator Z18, now ship with the improved Smart Extruder+.

While the release of two new MakerBots does mean new hardware will make it into the wild, this is not the largest part of MakerBot’s latest press release. The big news is improved software. Makerbot Print is a slicer that allows Windows users to directly import 3D design files from SolidWorks, IGES, and STEP file formats. Only .STL files may be imported into the OS X version of the Makerbot Print software. MakerBot Mobile, an app available through the Apple Store and Google Play, allows users to monitor their printer from a smartphone.

Earlier this year, we wrote the Makerbot Obituary. From the heady days of The Colbert Report and an era where 3D printing would solve everything, MakerBot has fallen a long way. In the first four months of 2016, MakerBot only sold an average of about fifteen per day, well below the production estimated from the serial numbers of the first and second generation Makerbots, the Cupcake and Thing-O-Matic.

While this latest hardware release is improving the MakerBot brand by making the machines more affordable and giving the software some features which aren’t in the usual Open Source slicers, it remains to be seen if these efforts are enough. Time, or more specifically, the Stratasys financial reports, will tell.

Possible Fire Hazard: Wanhao Duplicator i3 3D Printer

A while ago Wanhao was reaching out to its customers and resellers, warning them of a design flaw in their Duplicator i3 that may cause fires. The printers suffered from an issue that caused crimp connections of the nozzle heater cartridge’s supply line to fail due to the mechanical stress in the cable drag chain. In their “Recall” titled note, Wanhao provides instructions on how to fix the issue.

Now, [Chuck Hellebuyck] released an unboxing video on the Duplicator i3 Plus, during which the heated bed emitted magic smoke that could be rationally explained as another design flaw.

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3D Printering: Aramid and Carbon Fiber Infused ABS

Last week, we had a look at a carbon-infused PETG filament. This week, I’d like to show you two composites based on a more common thermoplastic in 3D printing: ABS. Among a whole lot of other engineering plastics, the french company Nanovia manufactures Kevlar-like aramid-fiber-infused and carbon-fiber-infused ABS 3D printing filaments. These materials promise tougher parts with less warping while being just as easy to print as regular ABS. Let’s check them out!

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Custom Gaming Keypad Developed with PSoC and Fusion 360

There was a time when building something yourself probably meant it didn’t look very much like a commercial product. That’s not always a bad thing. We’ve seen many custom builds that are nearly works of art. We’ve also seen plenty of builds that are–ahem–let’s say were “hacker chic”.

[AlexanderBrevig] decided to take on a project using a PSoC development board he picked up. In particular, he wanted to build a custom game keypad. He prototyped a number of switches with the board and got the firmware working so that the device looks like a USB HID keyboard.

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