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The Beginning Of The Age Of 3D Resin Printers

resin

For several years now, filament-based plastic printers have ruled the hobbyist market, with a new iteration on squirting plastic appearing on Kickstarter every week. SLA printers, with their higher resolution and historically higher price for raw materials, have sat in the background, waiting for their time to come.

Now, with the Sedgwick printer now available on Kickstarter, we may finally be seeing some resin printers make their way into hackerspaces and workshops the world over. Instead of other DLP projector-based resin printer where projector light shines up through the resin tank, the creator of the Sedgwick, [Ron Light] is doing things the old-fashioned way: shining the projector down onto the surface of the resin. He says it’s a simpler method, and given he’s able to ship a Sedgwick kit minus the projector for $600, he might be on to something.

There are a few other resin printers coming on the scene – the LittleSLA will soon see its own Kickstarter, the mUVe 1 is already shipping, and over on Hackaday Projects, the OpenExposer project is coming along nicely. All very good news for anyone who wants higher quality prints easily.


Filed under: 3d Printer hacks, Crowd Funding

(Better) Full Motion Video On The First PC

Ladies

Ten years ago, [Trixter] created 8088 Corruption, a demo for the original PC, the IBM 5150, that displayed full motion video using a CGA card and a SoundBlaster. It was hailed as a marvel of the demoscene at the time, garnered tons of hits when it was eventually uploaded to Google Video, and was even picked up by the nascent Hackaday.Now, ten years later, and seven years after [Trixter] said full motion video using the graphics mode of a CGA adapter was impossible, he’s improved on his earlier work. Now, it’s possible to display video at 640×200 resolution at 30 frames per second on a 30-year-old computer.

[Trixter]‘s earlier work used the text mode of the CGA adapter, only because the 40×25 character, 16 color mode was the only graphics mode that could be entirely updated every single frame. It’s still one of the high points of the PC demoscene, but from the original video, it’s easy to see the limitations.

A while back, [Trixter] said displaying video using his computer’s graphics mode was impossible. He’s had years to think about this statement, and eventually realized he was wrong. Like the developers of modern video codecs, [Trixter] realized you don’t need to change every pixel for every frame: you only need to change the pixels that are different from frame to frame. Obvious, if you think about it, and all [Trixter] needed to do was encode the video in a format that would only change dissimilar pixels from frame to frame, and manage the disk and memory bandwidth.

After reencoding the 10-year-old demo for graphics mode, [Trixter] turned toward his most ambitious demo to date: playing the ‘Bad Apple’ animation on an 8088. As you can see in the video below, it was a complete success.


Filed under: classic hacks

With $50M banked, HelloFresh CEO plans ‘global consumer food brand’ (interview)

With $50M banked, HelloFresh CEO plans 'global consumer food brand' (interview)

Above: A HelloFresh box.

Image Credit: HelloFresh

HelloFresh delivers a food box that lets subscribers make high-quality self-cooked meals at home. Customers can pick between different recipes and receive the exact number and portion of the ingredients needed. That way they get the right ingredients and are not stuck with leftovers. HelloFresh claims to deliver well over one million meals per month.

"We take all the not so enjoyable parts out of the experience and make cooking an appreciated part of your weekly routine," states Dominik S. Richter, the founder & global CEO of HelloFresh.

The number of competitors shows there is a market for this type of product. In the United States, the two biggest players are Planted and Blue Apron, with $5 million and $50 million investment respectively. Worldwide, there are several more. However, in Germany, KommtEssen, Unsere Schlemmertüte, and Kochzauber have a very difficult time gaining traction in the market, an insider told VentureVillage.

In his interview with VentureVillage, Richter spoke about the $50 million funding HelloFresh just raised mainly from New York-based Insight Venture Partners. He also shared with us the changes that occurred through company growth and how he feels about Berlin as a startup city.

VentureVillage: HelloFresh just raised a Series D. What will the company spend $50 million on?

Dominik S. Richter: HelloFresh has been growing incredibly since the early days, however, we are still only at the beginning of a long journey. Our vision is to establish a whole new category on the wider grocery market and build a truly global consumer food brand.

VentureVillage: What are HelloFresh's future plans and are there other fields HelloFresh could expand to?

Richter: Both geographic expansion to new and within existing countries is on the roadmap. With regard to product expansion, we work on improving service and product levels all the time. This obviously includes new product lines as well.

VentureVillage: How big is HelloFresh now?  

Richter: We are currently present in Germany, Austria, Netherlands, UK, USA, and Australia. Our offices are in Berlin, London, Amsterdam, New York, and Sydney, and we now count 120 employees.

VentureVillage: With 120 employees, how hard is it to keep the startup spirit?

Richter: We don't struggle with that. Part of the reason might be that although we have been growing rapidly, we have kept rather small teams in all our countries. We hire very slowly and greatly believe in small and empowered teams. Many of our employees have actually been with us for a long time and remember the day when we were packing our product in someone's living room.

VentureVillage: Why is Berlin the right city for your startup? What is still missing?

Richter: Berlin is an amazing city for a startup. There is a lot of talent, a great network and affordable infrastructure. What's missing is the risk-reward profile that is common in Silicon Valley. Here, high performing employees often do not appreciate and value stock and stock options correctly, thus making it hard for early stage startups to win over great talent from more established industries or players who can pay better salaries. I think this due to the fact that not a lot of wealth has been created through stock in Berlin so far, i.e. lack of role models, but I hope this will change if we have a couple of good exits in Berlin.

VentureVillage: If you could start all over again, what would you do differently?

Richter: With hindsight, I would have done 100 small things differently but then I also know that "with hindsight" is a heavily biased view. It is easy to come up with a narrative but much harder to make decisions in real-time with limited information. As an entrepreneur, it is better to focus on the future and that's what I try to do rather than think about what we could have done differently in the past.

This story originally appeared on VentureVillage.


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HelloFresh is a new way to cook! Every week we send you all the fresh ingredients you need to prepare delicious recipes. We take care of your meal planning and even do the shopping for you: with HelloFresh everyone can enjoy cooking!... read more »








How the Internet of things could transform the enterprise

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How the Internet of things could transform the enterprise
Image Credit: A-R-T/Shutterstock

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It's an exciting time to be in enterprise tech: We're seeing tablets go from video streaming screens at home to salesforce-enabling tools in the enterprise. Meanwhile, wearables like Google Glass are going from hiking trip cameras to repairing jet engines at GE.

The "consumerization of IT" is in full swing: When the workforce learns to love a technology for personal reasons, they will find a way to bring it into the office.

One of the most challenging and exciting aspects of my job is figuring out how to transform consumer technology into enterprise solutions.

At Apple's Worldwide Developer Conference (WWDC) earlier this month, the technology giant synonymous with innovation launched its much-anticipated HomeKit, which promises to seamlessly connect your home to your Apple devices.

This is a great example of the "Internet of Things" in action — a revolutionary concept that is generating a lot of buzz with consumers.

HomeKit will use Siri to control your home using third-party home automation systems and iOS 8. This will run the gamut of useful daily activities from your mobile device, from turning on your lights when you walk in the door to controlling your security system and connecting other household appliances.

What's exciting for me in my role in an end-user computing business unit is to imagine how this HomeKit revolution will migrate into the "Smart Office" and ultimately the "Smart Employee." I'm also motivated by the challenge of figuring out how all these communicating "machines" will meet the stringent security regulations many of our corporations require.

Today we are implementing technology that connects traditional devices such as laptops, tablets, and mobile devices for one seamless experience that enables employees to work at the speed of life. Much in the way you can start a Netflix movie on your tablet and finish it on your smart TV, we have created the same seamless experience for your work life across devices.

Now imagine some of the ways the Internet of Things might work in the enterprise.

  • Say you have a 6 a.m. conference call with colleagues abroad that is canceled overnight. Your corporate email would communicate with your alarm clock to allow you sleep in.
  • When you're leaving the house, your car detects the location of your upcoming meeting and automatically sets up navigation.
  • En route to the meeting, your vehicle detects an accident or traffic jam that will make you late, so it will automatically alerts the meeting attendees of your new ETA.
  • When in the office, your smartphone or device serves as your corporate badge, allowing access to a building with restrictions based on your role in the company.

While this may sound futuristic, some companies are working to make this vision a reality.

In the past, I’ve blogged about the impact that big data, mobile, and cloud technologies could have on the Internet of Things, so it is great to see some of the vision I articulated starting to become a reality.

Now, what do you think of Apple's new HomeKit? How do you see the Internet of Things in the Enterprise working at your company? Where do you see the "Smart Office" going? Share your thoughts below in the comments.


Sanjay Poonen is the executive vice president and general manager for end-user computing at VMware.

 

 



VMware (NYSE: VMW) is the leader in virtualization and cloud infrastructure solutions that enable our more than 500,000 enterprise and mid-market customers to thrive in the Cloud Era by simplifying, automating and transforming the way ... read more »








Why VC firms are raising separate late-stage growth or ‘opportunity’ funds

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Why VC firms are raising separate late-stage growth or 'opportunity' funds
Image Credit: Shutterstock

With this week’s announcement that early-stage VC Greycroft has raised a $200 million growth fund, this type of fund has officially become a trend.

But before we dig into the dynamics of it, let's pay homage to the originator of this concept, Union Square Ventures.

In January 2011, USV raised what I believe was the first "opportunity fund." Prior to this, plenty of VC firms invested across the early stage to late stage spectrum from the same fund (e.g. Battery, General Catalyst, Sequoia, Greylock, Bessemer). Others had separate early stage funds and late stage funds, often with separate teams and economics (e.g. Redpoint, DFJ, North Bridge) typically aimed at different opportunities.

But the USV Opportunity Fund was the first time, at least in the post 2001-Internet bubble cycle (or in the past decade, if you want to put it that way) where an early stage firm created a separate fund to invest in late stage rounds of their existing early-stage portfolio companies. In USV's case, Fred Wilson explains the strategy extremely clearly in the post The Opportunity Fund.

Greycroft is the latest firm to raise this type of fund. In the last week I've talked to two other early stage VC firms who are raising similar opportunity funds. In one case they referred to it as a growth fund. In the other case they referred to it as an opportunity fund.

In the fall of 2013, we raised a similar type of fund called Foundry Group Select. It was a $225 million fund, just like our other three $225 million funds raised in 2007, 2010, and 2013. But we called it "Select" instead of "Growth" or "Opportunity" for a specific reason — we only use it to invest in existing portfolio companies of ours.

USV has done a magnificent job of investing in later stage rounds of their existing portfolio companies as well as later stage rounds of companies that fit tightly within their investment thesis. We decided to drop the second half of that strategy as we didn't want to spend time being late stage investors. It's not natural for us as an entry point and we didn't want to add anyone to our team since keeping our team size exactly the same is a deeply held belief of ours.

The decision to raise this fund came out of a combination of desire and frustration. We have a well-defined fund strategy, based on a constant size of each of our funds. Our goal is to make about 30 investments in each fund (2007 has 28, 2010 had 31) that range between $5m and $15m over the life of the company. Part of this strategy is that we are syndication agnostic — we are happy to go it alone through two or three rounds of a company if we have conviction about what they are doing. We are equally happy to syndicate with one or two other VC firms. Either way, while we focus on being capital efficient (we'd rather not overfund the companies we are involved in early), we are interested in buying as much ownership as we can at the early stages.

As a result, when a company begins to accelerate dramatically, we weren't in a position to contribute meaningfully to the later stage rounds since we'd likely already have something in the $10m to $15m range invested. That's the desire part of the equation — we knew we could make money off a later stage investment, but when we were talking about investing an incremental $1m or $2m it didn't really matter much.

The frustration part was more vexing to us. In a number of our successful companies, we saw a long line of financial investors lining up to follow. None of them would engage as a lead, but all want to participate when a round came together. If a company was raising $30m, we'd have $50m+ of "followers" waiting to take whatever was left. We didn't find that particularly helpful.

So we raised Foundry Group Select. We explicitly limited it to only companies we were already investors in and on the boards of. As a result, it is literally zero incremental work for us since we are already deeply involved in the companies we are investing in. This led us to an interesting decision – since we recycle 100% of our management fee, why would we charge a management fee on this fund if we are doing no incremental work? The conclusion was easy — we don't charge a management fee. We only make money when the investments make money, resulting in very tight alignment with our LPs.

To date, we've invested from Foundry Group Select in Fitbit, Sympoz, Return Path, Gnip (acquired by Twitter), and Orbotix. It's been a powerful addition to our strategy without creating any extra overhead on us.

I'll end where I started, by paying homage to our friends at Union Square Ventures. They've led the way on many elements of early-stage investing post-Internet bubble, dating back to 2004 when Fred and Brad raised the first USV fund. As the "opportunity fund" becomes a trend, they've once again created something that, in hindsight, looks brilliant.

This story originally appeared on Brad Feld.


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Union Square Ventures is a venture capital firm based in New York City. The company is a small collegial partnership that manages $450,000,000 across three funds.... read more »

Greycroft Partners is a venture capital partnership, formed to invest in promising Internet and digital media companies. With offices in New York and Los Angeles, Greycroft has deepened its bench to provide significant resources to ear... read more »

Foundry Group is a venture capital firm focused on investing in early-stage information technology companies. As entrepreneurs ourselves, we are passionate about helping outstanding entrepreneurs turn promising ideas into market-de... read more »








Delving Deep into High Speed Digital Design

scope capture showing ringing affect in a high speed digital signal

In high speed digital circuits, fast doesn’t necessarily mean “high clock rate”. [Jack Ganssle]  does an excellent job at explaining how the transition time of signals in high speed digital circuits is just as important as the speed of the signal itself. When the transition time is large, around 20 nanoseconds, everything is fine. But when you cut it down to just a few nanoseconds, things change. Often you will get a ringing effect caused by impedance mismatch.

As the signal travels down the trace from the driver and hits the receiver, some of the signal will get reflected back toward the driver if the impedance, which is just resistance with a frequency component, does not exactly match. The reflected signal then heads back to the driver where the impedance mismatch will cause another reflection. It goes back and forth, creating the ‘ringing’ you see on the scope.

[Jack Ganssle] goes on to explain how a simple resistor network can help to match the impedance and how these should be used in circuits with fast transition times, especially where you will be taking readings with a scope. As the scope probe itself can introduce impedance and cause the ringing.

In case you didn’t pick up on it, [Jack Ganssle] also happens to be one of the judges for The Hackaday Prize.


Filed under: misc hacks

Infrared Controlled Remote Firework Igniter

Firework Igniter

With Independence Day just around the corner, American hackers are likely to find themselves blowing things up in the name of Independence. It’s all great fun but it can also be dangerous. The standard ignition method of “use a lighter and run away really fast” is not exactly safe. Instead of lighting your fireworks the old-fashioned way, why not follow [Facelesstech's] example and build your own infrared controlled remote igniter?

The first step was to decide how to actually ignite the firework fuse. [Facelesstech] had seen others use a car cigarette lighter for this purpose and he decided to follow in their footsteps. He started by removing the cigarette lighter from his own car and pulling it apart. Only one component was needed for this hack. The main heating element is a small disk with a “stem” on the end. If you apply 12V to the stem and attach the outer edge of the disk to ground, the igniter will quickly become hot.

[Facelesstech] originally thought he could just solder some wires to the device. However, the heating element gets so hot that the solder just melts every time it’s turned on. He then got creative and drilled a hole in a small block of wood that fits the heating element. The element is bolted into the wood and the bolt is used as a conductor for the electrical power.

The heating element is powered via a 12V relay. The relay is controlled by an Arduino Nano. The Nano allows two modes of operation. With the first mode, you simply press a button and the Nano will start a five second timer. The idea is to give you enough time to run to a safe distance before the firework is ignited. This isn’t much different from the old-fashioned method, but it does give you a slightly extended fuse. The second mode is where the project really shines. The Nano is also hooked up to an infrared receiver. This allows [Facelesstech] to press a button on an old television infrared remote control to active the igniter. This is a clever solution because it allows you to get to a safe distance without having to run a long wire. It’s also simple and inexpensive. Be sure to watch the video test of the system below.

[Thanks Dale]


Filed under: Arduino Hacks, Holiday Hacks

Network Controlled Decorative LED Matrix Frame

LED-Pixel-FrameThere is nothing better than a project that you can put on display for all to see. [Tristan's] most recent project, a Decorative LED Matrix Frame, containing 12×10 big square pixels that can display any color, is really cool.

Having been built around a cheap IKEA photo frame this project is very doable, at least for those of you with a 3D printer. The 3D printer is needed to create the pixel grid, which ends up looking very clean in the final frame. From an electronics perspective, the main components are a set of Adafruit Neopixel LED strips, and an Arduino Uno with an Ethernet shield. The main controller even contains a battery backup for the real time clock (RTC) when the frame is unplugged; a nice touch. Given that the frame is connected to the local network, [Tristan] designed the frame to be controlled by a simple HTML5 interface (code available on GitHub). This allows any locally connected device to control the frame.

Be sure to check out the build details, they are very well done. If you are still not convinced how cool this project is, be sure to check out a video of it in action after the break! It makes us wish that you could play Tetris on this frame. Very nice job [Tristan]!


Filed under: Arduino Hacks, led hacks

Add taxi medallion investors to the list of Uber’s enemies

Add taxi medallion investors to the list of Uber's enemies
Image Credit: Uber

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When taxi drivers went on strike across Europe last week, one of the things they were protesting was the lack of regulation of one of their most significant competitors: Uber.

The taxi strike was ill-thought-out, since it drove many potential customers right into Uber’s arms. But the protest was founded on solid economics. In some European cities, as we noted last week, the price of a taxi license is upwards of $200,000.

Growth in the value of taxi medallions in various cities.

Above: Growth in the value of taxi medallions in various cities.

Image Credit: Washington Post

In the United States, the situation is even starker. In fact, as the Washington Post points out today, taxi medallions (transferable licenses to operate a taxicab) have gone as high as $1 million in New York, or $700,000 in Boston. Their price keeps rising so quickly — and so reliably — that, as an investment, they’ve generally outperformed the Standard & Poor’s 500 index.

Add that to the list of casualties inflicted by Uber’s business model. If Uber cars can operate, and do a decent business, without a taxi medallion, then that takes an enormous capital cost out of the price of starting up a taxi business. It also removes the necessity of buying a medallion, which should drive the prices of these medallions down — a lot.

The Post illustrates the extent to which the taxi industry has been regulated with a great anecdote, showing how everything from the lettering on the cab to the stickers on its window are all governed by city regulations and enforced by steep fines. And it crystallizes the debate neatly:

The taxi industry warns that without medallions, cities will lose their control over an essential public service. Uber counters that medallions have created a cartel that operates for its own benefit — and not in the best interests of the public.

But it’s not just about regulation, public safety, and small independent taxi drivers. Far from it, the Post points out: In cities like Chicago, taxi medallions have created an investment class all to themselves:

Deep pockets run this market. The system in Chicago and elsewhere is dominated by large investors who rely on brokers to sell medallions, specialty banks to finance them and middle men to manage and lease them to drivers who own nothing at all.

Indeed, the Post notes, the medallion market altogether was worth about $2.4 billion in Chicago alone in 2013.

Read the whole story for a great window into how a smartphone-driven technology like Uber can cause enormous ripples, far beyond its immediate application to urban transportation.

 



Uber Technologies Inc is known as Everyone's Private Driver. Uber operates an on-demand car service used all over the world. With the touch of a button from your phone, you can experience your own private driver. Sign-up quickly, g... read more »