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Filed under: laser hacks, daily[andre] sent in his first attempt at using a HD-DVD laser diode to expose photosensitive resist to create PC boards. We've been meaning to give this a shot with the ol' Epilog laser cutter. For the test, he coated the board with some resist and hand exposed it with the laser. Finally, he etched it with some sodium hydroxide.Read |&... this | Linki... Hackaday.com Wednesday, July 09, 2008 Touchkit - IR multitouch screen Filed under: home entertainment hacks, misc hacksIf you've got an extra grand laying around, you can pre-order one of [nortd]'s touchkits. It features a unique custom made acrylic screen with a crap ton of IR LEDs embedded in it. An included IR camera provides the input and a projector (you get to supply your own) is used to light the surface. We mentioned this in our multitouch roundup and you can find a video of it embedded after the break. [via ladyada]Read |&nb... this | Linki... Hackaday.com Wednesday, July 09, 2008 Super Models, Part 2: Avoid Mutators A quick disclaimer: we're entering religious territory here. I feel strongly about this issue, but it's certainly my opinion. If you want to get the full sense of how passionate people are about this issue, check out this article at JavaWorld.
I've come to the point of view that Entities should not use set mutators ("setters"). Anything you represent as a setter can usually be better represented as a plain old method. Why?
Let's remember one of the fundamental guidelines of DDD: intention revealing interfaces. Which is more intention revealing?
Customer c = new Customers().Find(42);
// This...
c.Address = aNewAddressValueObject;
// or this?
c.ChangeAddress(aNewAddr... a subtle point and it's admittedly open for debate. To firm up my argument let's consider the situation where I'm crunching knowledge into model and address change becomes a temporal concept. I now need to track what an address is of a certain date and Codebetter.com Wednesday, July 09, 2008 New Drobo has Firewire support, old model drops in price Filed under: newsData Robotics has released an updated Drobo with two Firewire ports and an updated processor, allowing for faster data transfer and daisy chaining multiple Drobos. The new models of this storage and backup device also features a quieter and larger case fan. The case itself has been modified slightly but to great effect, looking sleeker than ever. Sadly, they still start at $500 without any hard drives.One nice side effect to the announcement of the new Drobos is the price drop for the old ones. Starting at $350, these still make great storage solutions, and hanging on to $150 isn't bad either. Still, if the idea of buy anything for this purpose curls your toes, build your own network attached storage.Read |&nb... this | Linki... Hackaday.com Wednesday, July 09, 2008 Xbox 360 and LCD HDTV rolled into one Filed under: home entertainment hacks, xbox hacksWhat happens when you take a little [Ben Heck] ingenuity, a little Lian Li utility, an Xbox 360 and an LCD HDTV and mix it all together? You get the Microvision 360, a combination LCD HDTV and Xbox 360. The mod is not particularly complex. The Microvision 360's creator [PvP_LostKnight] only removed the working parts from the Xbox 360's case and mounted them to the back of the TV. A few of the inputs of the TV had to be moved and rewired, and a repurposed and painted tupperware container was added to cover the Xbox 360 parts. Unfortunately, [PvP_LostKnight] did not post a writeup, and even added "The wiring for this is horrible, I would not recommend anyone trying this." Setting aside his recommendation for a moment, a few of the advantages to his design are improved airflow to the Xbox 360 and better space usage. What we'd like to see added more than anything is power integration, with a single button to turn on both and a single power s Hackaday.com Wednesday, July 09, 2008 Live full motion video on a Peggy Filed under: misc hacks, peripherals hacks [Windell] was stoked enough to send us [Jay]'s sweet hack on [Windell]'s Evil Mad Scientist Laboratories Peggy 2.0 kit. [Jay] added serial input and hacked quartz composer on his mac to light up all 625 LEDs with live motion video. If you were jealous of the Metalab's giant LED display, now you can have your own - smaller and cheaper.EMSL has recently supplemented this awesome device with their Arduino Library for Peggy 2.0. It is a program library that contains various animations and demonstrations of how to draw on a Peggy. Download and enjoy them as they are or tweak them to test out some of Peggy 2.0's capabilities.Read |&a... this | Linki... Hackaday.com Wednesday, July 09, 2008 Custom modular control interfaces Filed under: digital audio hacksMachinecollective.org is bringing rapid prototyping to every day artists and hackers. We've covered similar interfaces like the monome, MIDIbox, and Stribe. Machinecollective allows you to make your own input system using multiple blocks to get exactly what you want. The setup allows you to fit pretty much anything in a block that you can think of. They're developing potentiometers, slide potentiometers, button grids, toggle switches, LCD's, FSR/LDR's, velocity sensitive pads, and touch screens. Currently, they support software enviroments like: Processing, Max/MSP, VVVV, and Adobe Flash. That list will undoubtedly grow as the community plays with it. They envision the hardware connecting via MIDI, OSC, RS232, TCP/UDP, DMX, or USB.They encourage others to design their own inputs. Community members can share modifications and designs, though there isn't a forum or store yet. If you design a setup that you really like, they can even fabricate a single unit Hackaday.com Wednesday, July 09, 2008 Filed under: digital cameras hacks, misc hacksWe've seen numerous products geared toward tracking the location and activities of your pets, two in the last month, but we feel sure you can make more functional devices than those you can purchase. Let's look at a few and consider our options.A camera called Pet's Eye View hangs from your pet's collar and takes photos in your choice of 1, 5, and 15 minute intervals. While the concept is good, the execution is poor: it can only take up to 35 images at 640 x 480px with no other resolution options available, and it has no expandable media slot. We also dislike the lack of GPS tracking, but wouldn't really expect that for the $45 price.
For GPS pet tracking, Garmin has recently introduced their Astro System, which consists of a collar with a GPS and a tracking unit. Like most Garmin GPS product, this one is functional, full featured, and a great match of function and technology. We like live pet location tracking, we just don't have $600 t Hackaday.com Wednesday, July 09, 2008 Intervalometers and timelapse photography Filed under: digital cameras hacksTime lapse photography can seem out of reach for many of us who don't have fancy cameras(or a hacked cannon point and shoot). We recently covered using a TI-83 as a timer, and now we've gathered a collection of DIY intervalometers to help you get clicking.Up first, for those of you who don't want to dismantle your camera, here are some mechanical ones that will work on any camera. [Simplesimon] has done a fantastic job with this integrated system pictured above. He's added an adjustable solenoid to click the shutter release. By including a second kit board to handle an RF remote, it has remote single shot capabilities too!Here's another mechanical one. Using a servo, some hot glue and other miscellany, [Tool Using Animal] (who we featured with the parasitic wind turbine) has created this fairly simple intervalometer. Again, this one could be used on pretty much any point and shoot camera. His mechanism for pressing the button is unique, he uses a servo Hackaday.com Wednesday, July 09, 2008 DC ALT.NET - 7/24/2008 - LINQ Deep Dive with Scott Allen The July meeting for DC ALT.NET will be on July 24, 2008 from 7PM-9PM. Check out our site and our mailing list for more information as it becomes available. This month, K. Scott Allen, of OdeToCode and a co-host of Herding Code, will present a deep dive into LINQ and a code-along so that we can follow along. The intent is to go as deep as we can with LINQ to find out what works, what doesn't and how to use it effectively. So, bring your laptops and get ready...
I'd like to thank Cynergy Systems, Inc for sponsoring this month's event. As a side note, they are actively looking for experienced .NET developers with interest in WPF and Silverlight. So, if you're looking for a great company that is a leader in the Rich Internet Applications area and want to work in downtown Washington D.C., definitely check them out.
The information is as follows:
DateTime:
7/24/2008 - 7PM-9PM
Location:
Cynergy Systems Inc.
1600 K St NW
Suite 300 Codebetter.com Wednesday, July 09, 2008 1 2
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Top news - Business - Entertainment - Health - Industry - Internet - IT - Politics - Science - Sports - Technology - USA - Video games - World news
© 2008 Butterfly Effect SA