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The following is reposted from the March 31, 2010 UVa Today:

Curry’s Fabulous New Fabricator Brings Concepts from Digital Blueprint to 3-D Reality

March 25, 2010 — Imagine a desktop printer that produces tennis shoes, chocolate Rotundas, tubing for robots and even human organs. Not pictures of them, but the real deal.

It sounds futuristic, but its time is now. The machine is called a fabricator, and the Curry School of Education at the University of Virginia will be the first in the country to integrate this type of technology into its teacher preparation curriculum.

“It sounds like science fiction, but it’s really, really tangible, and it’s really here,” said Cornell University scientist Hod Lipson, who spoke about the machine at Curry on March 4.

User-friendly software creates blueprints for the fabricator, which then pushes out layers of material until the object “prints” right before your eyes.

“You can download a rubber ducky off the Internet, hit the print button, and you will have that thing on your desktop, physically there,” Lipson said.

“Instead of spitting droplets of ink, it will spit out droplets of plastic” — or even organic materials, such as edible ingredients or human cells, to create food or human tissue. (In one study performed at the Stone Clinic in San Francisco, a collagen scaffold was fabricated for use as a template for the regeneration of meniscal cartilage and was successfully tested in 10 patients in an initial, Food and Drug Administration-approved, clinical feasibility trial.)

Lipson demonstrated the machine’s capabilities by producing a chocolate Rotunda for the audience at the Curry Library Innovation Commons, which included U.Va. community members and students from Crozet Elementary School.

“The implications of using the fabricators in the classroom are far-reaching,” said Glen Bull, co-director of the Curry School’s Center for Technology and Teacher Education.

Bull collaborated with Lipson, director of the Cornell Computational Synthesis Laboratory, to design a $1,800 3-D fabricator specifically for Curry and K-12 classrooms.

It was Bull’s vision that identified the potential for learning with the technology being developed for other uses in laboratories across the country.

“Math and science are naturally embedded in the process,” he said. “It empowers children, unleashes creativity and truly engages them to learn about the tools they need to be leaders in the world.”

Many of the students working with digital fabrication have expressed interest in engineering careers as a result of this experience, Bull said.

Lipson spoke at Curry in conjunction with the launch of the Children’s Engineering Initiative in the school’s Innovative Commons, which also debuted a prototype of the machine developed for Curry’s use.

“It’s the first of its kind,” Bull said of the system he calls “Fab@School.” “It will allow students to have the motivating and satisfying experience of taking their concepts from mind’s eye to physical form.”

The fabricator will join other similar machines and computers in the Children’s Engineering corner of the commons, a place where student teachers will be able to learn about the cutting-edge technology.

Fifth-graders from Crozet have been using a 2-D fabricator to print on a cardboard-type material that they then fold and glue to create a range of 3-D objects, including model rockets, castles and dioramas. In conjunction with Children’s Engineering efforts at the Curry School, they attended the March 4 launch.

Of the new fabricator, 10-year-old Trey Harvie said, “We mainly use it for generating 3-D objects for math, which was fun. But we could use it for other subjects like history and social studies.”

Bull, who has been with Curry for 35 years, credits the school’s leadership and a culture that has been cultivated over decades for his success in bringing this kind of leading technology to the community.

“The Curry School is a very unusual place,” he said. “It has a commitment to a culture that supports innovation. We’ve built the community that would support this kind of technology.”

Lipson compares the accessibility of fabricators to the personal computer revolution in 1975.

“No one knew what you could do until the first kits came out,” he said. “The PC was the democratization of information and innovation.” And so is digital fabrication, he said.

Asked about Lipson’s presentation, which highlighted the more exotic uses for the technology – such as tissue replacement – fifth-grader Hanna Clark said, “From what we’ve done, I’d believe just about anything” is possible.

— By Ellen Daniels

U.S. Patent No. 7,681,553, issued on March 23, 2010 to Pulsco, Inc. of Irvine, CA, discloses a multi-chambered acoustic filter for use in the fuel rail of a fuel injection system.

The patent explains that pumping fluids under high pressure (such as in a fuel injection system) creates pulsating vibrations and high intensity noise.  The three-chamber dampener of the patent is disclosed to be able to suppress these effects in a given frequency range, thereby avoiding damage to the fluid system, while also being small and economically produced and implemented.

According to its website, Pulsco has been designing and manufacturing surge arresting and pulsation dampening products for over 80 years.  A page on its website states that “patents are fundamental to Pulsco’s proprietary advantage and success” and it places their patents “on display here for your research and enjoyment.”  The company appears understandably proud of its history of technical innovation, however, reviewing the listed patents for pulsation dampeners shows that they date from 1957 to 1991, so many of them have long since expired.  I’m sure they are gratified by the ‘553 patent as proof that their innovating ways are continuing.

A mechanical Spring has arrived exactly on time at the Yorkshire Sculpture Park.  Dennis Oppenheim’s ‘Trees (From Alternative Landscape Components 2006)’ are currently blossoming with a multitude of engineered, welded and fused ingredients.

Dennis Oppenheim

Dennis Oppenheim

Sculpture embedded into the landscape

Set within the classically landscaped  West Bretton park, Oppenheim’s engineered Trees provide a stark, humorous reminder of man’s impact on the environment.  A simultaneously awkward yet compelling collection of large-scale sculptures.  These works demonstrate how high quality Public Art can engage, enthuse and challenge even the most casual passer-by.

Homeward bound

In the 17 years I’ve lived in the East Midlands, YSP has always been an inspiring site to visit.  A place to revisit longstanding favourites including Barbara Hepworth’s Family of Man, Elizabeth Frink’s Running Men and to grimace at the Henry Moore monstrosities.  And a place to see new artists.  This visit provided a portal into the home-spun magical world of Rob Ryan and Ryan Town – unequivocal proof ‘You can still do a lot with a small brain’.   Particularly with an extreme amount of patience, scalpel blades, coloured paper, stories, home truths and lyrical imagery.

Mechanical Engineer

G.S Developers &contractors (P) LTD.
201,Shahpuri Tower,
C-58,Community Centre, Janakpuri
New Delhi-110058

Email:hks@gsdcpl.com
For More Jobs Log On www.Eminentjob.com

Check out Leonardo da Vinci’s resume!

Although, it is really different than a modern resume in flavor, because it talks about what he can do, rather than what he has done.  Something for those of us who are job searching to keep in mind.

Robots and noise are both good things. Sarah Angliss knows this.

This is photo of her performing a duet with a robotic theramin playing doll she created…

She’s planning to take part in an event in London’s derelict Battersea Powerstation later in the year. Check out her blog for more details.

Friday 26 March saw the biggest and smoothest ride in the recent history of the Friday Night Ride to the Coast.  This write-up is a few days overdue – I’ve been a bit sleepy and a bit busy since Saturday to get this written, so sorry for the delay.  Anyway…

I got home from work on Friday and settled down for a couple of hours sleep.  I never get any real sleep when I try so early in the evening (even after avoiding caffeine all day), but lying down for a rest does help a bit.  I got up about 20:30 and headed downstairs for a double espresso and pasta with tuna, then checked the weather forecast.  On Thursday, Metcheck had been forecasting a dry night with a very light southerly, which was quite favourable, but during Friday the forecast had started to indicate rain.  It was still showing some rain, but not terribly much. That kind of forecast makes it difficult to decide what to wear and what additional clothing to carry.  At least I knew how cold it was going to be – no less than 4C.  The almost complete cloud cover would prevent it getting any colder than that.

By the time I’d had a shower it was 22:00 and had started raining quite heavily outside.  The rain only lasted a few minutes, but it meant that the ground was going to be wet and more rain could be coming, so I slapped a race blade over my back wheel.  I didn’t want to carry a bag with me so I set about organising my pockets to squeeze in my waterproofs, phone, keys, money, short-finger mitts and a bunch of gels.  Spare tubes, CO2, other tools and things were safely stowed in the little bag under my saddle.  Just one more espresso required.

I set off for Hyde Park Corner about 22:40, riding across Richmond Park and up through Barnes, Hammersmith and High Street Kensington.  The crowds were already building up under the Wellington Arch as dozens of cyclists arrived from around London and the local railway stations.  This FNRttC was a little different to usual.  About 60 regulars were attending and escorting a contingent of 65 riders who were fundraising for the Martlett’s Hospice.  This made the ride an official CTC event rather than an informal ride, so everyone had to sign in.  We had a quick safety talk and then set off at midnight around the Hyde Park Corner one-way system, through little roads to Sloane Square and across Battersea Bridge towards Clapham Common.

A field of 125 riders is a lot larger than the FNRttC had seen before and given that half of the participants were new to the concept of night riding, with some on heavy and/or dodgy looking bikes, one could be forgiven for having a little apprehension about whether or not the ride would run to schedule.  The rides routinely arrive at the coast an hour behind schedule with half the number of riders, so how was this one going to fare?

Against the odds, this was probably the smoothest running FNRttC to date.  It must not be forgotten the Simon Legg is quite a legend.  He had beefed up the group of Tail-End-Charlies (TEC) so there was a high level of expertise available to anyone who suffered a mechanical problem.  Canisters of compressed CO2 were in abundance to speed up puncture repair (perhaps this should become a permanent feature).  There were plenty of wayfinders at the front of the pack ready to give directions at intersections and mark significant potholes.  Riders were appearing on Madeira Drive in Brighton by 8:00 am, which wss right on schedule.  It couldn’t have gone much better!  Let that be a lesson to my pessimism.

I did my share of wayfinding along the route and marked a big pothole in the middle of Lonesome Lane, just south of Reigate.  Standing in the middle of the road signalling for riders to go either side of me, I felt like I should have been blowing a whistle and holding a little triangular flag above my head, like you see in front of traffic islands in the Tour de France.  I was really impressed with all of the riders I saw coming past me while I was wayfinding.  Even towards the end people were looking fairly fresh and smiley.  The half way stop at the scout hut in Horley was instrumental in keeping both spirits and carbohydrates high.  The Martlett’s volunteers pouring tea and coffee, and providing sandwiches, cakes and bananas were marvellous.  It was a well deserved rest for everyone and well-timed as it came just before Turner’s Hill.

To the half way point there had been two drop-outs.  One was a Martlett’s girl who was clearly struggling from the beginning and ended up in the minibus (or sag wagon) early on.  The second was Charlotte, who I recognised from the ride to Bognor Regis in August 2009.  She had been riding a brilliant looking penny farthing, but had come into mechanical difficulty after one of her cranks fell off after descending Reigate Hill.  Despite some attempts, it was unable to be fixed so she unfortunately had to pull out and ride the sag wagon the rest of the way to Brighton.

There were some other interesting bikes on the ride too.  One enormous contraption fabricated from at least three bike frames set the rider about two and a half metres above the ground.  At the other extreme, a recumbent trike with a swept back windshield placed the rider’s head lower than the height of a 700c wheel.  My friends Wheeled Weenie and Cathy rode the whole route on a tandem, the first time either of them had ridden on such a bike.  Quite an achievement.

The tallest bike I've ever seen approaching the summit of Ditchling Beacon

The weather was dry the whole way to Brighton and it wasn’t too cold.  There were several stops along the way but none were too long.  Everything flowed nicely.

A few miles before Ditchling, I noticed that my front tyre had lost a lot of air.  It wasn’t flat, but was quite soft.  I decided to top it up and keep going.  By the bottom of the Beacon it had gone down again, so I stopped to change the tube and then it was up the hill.  I’ve ridden Ditchling Beacon a few times, but this time was the hardest I remember.  My fitness is just not what it was before the winter and it was quite an effort getting up there.  I resolved at that point to start featuring more big hills in my training.

After the Beacon, it was a nice ride past the golf club and down into Brighton for a full veggie breakfast (with hash browns) at the Madeira Café.  There I got chatting and managed to put a lot of faces to names I was familiar with from the CycleChat forums.  It was nice to meet lots of new people.  I also managed to meet on this ride another Willesden CC member who lives not far from me in Twickenham.  He noticed my club jacket while we were preparing to depart at Hyde Park Corner and came over to have a chat.

After some breakfast and chit-chatting, a bunch of us, about 12 I think, got ready to cycle back to London.  At that point I discovered that my front tyre was gone again.  It looks like a little flint stuck in the tyre must have been poking through to the interior just enough to cause a slow leak in the tube.  So I changed the tube again and with no spares left, we set off north.

We ascended what must have been one of the steepest streets in Brighton, up under the entrance to the railway station, and continued from there towards Devil’s Dyke.  Going down the other side of the Dyke was fun and I clocked about 75 km/h!  The route we took followed some beautiful little country roads that were a pleasure to ride through after having been up all night.  But there were a lot of hills and one of our number bonked half way up one of them, opting to stop for a long rest before finding the nearest railway station.

We stopped for a while in a little village and grabbed some food and drink to keep us going, then we jumped onto an A road and picked up the pace past Crawley and Gatwick.  The group then split with four of us heading north-west and the others heading north-east towards Bromley and central London.  We said our goodbyes and Mistral guided us back onto quieter roads towards Dorking.  Along this stretch we encountered our first rain since leaving Hyde Park Corner the night before.  As it got heavier we stopped to neck some more gels and put on our waterproof jackets.  A little later the rain had stopped and I was starting to get a bit hot in the little sweatbag I’d zipped onto myself, so off came the jacket.

With Box Hill towering upwards on our right, we diverted left and took a nice narrow country lane towards Stoke D’Abernon.  We started to see a number of other roadies out for their Saturday training rides.  Mistral told us that there would be one last hill that is a little steep but not too long.  This last hill resides on Chapel Lane and its gradient is over 20% for a good portion of the climb.  After almost 200 km and no sleep, ‘not too long’ felt like it would never end and I had to summon every last bit of will power to keep myself going.  I got to the top in one piece and took a good long breather while waiting for the others.

We rode past Stoke D’Abernon towards Cobham and past the Chelsea FC training grounds.  The road inclined slightly as we approached a bridge over the railway line and then disaster struck.  As I put on a little acceleration, I heard a massive clunk, my back wheel stopped spinning and I couldn’t move the cranks.  I managed to unclip and get off the bike without falling.  My first guess was that one of the rubber straps from my mudguard must have gotten caught in the spokes, but on taking a look it was in exactly the right position and the straps were well clear of the wheel.  I took a closer look and then saw that a spoke on the non-drive side had snapped up near the rim and flown into the chain.  It had then been wrapped around the underside of the cassette and gotten trapped between the chain and one of the jockey wheels causing the derailleur to bend out of shape.

A non-drive side spoke snapped at the rim and wrapped itself under the cassette, becoming trapped between the chain and a jockey wheel and causing the rear derailleur to bend out of shape

I couldn’t believe it.  Not only was I almost at the end of the ride (about 20 km remaining), but the wheel was almost brand new, received from Planet-X in late February.  I really didn’t expect to get broken spokes so soon after buying the wheels and in normal riding conditions.  I’ve even been extra careful in avoiding bumps and potholes since getting the wheels as I haven’t wanted to cause them any damage.  I was gutted.

The four of us all stopped and had a think what we could do.  We removed the derailleur, which was bent well out of shape.  We managed to get the broken spoke out and then set about shortening the chain with a view to me riding single speed the rest of the way home.   That was no good though.  The wheel was way out of true, so that was the end of the road for me.  I thanked the guys and plodded off towards the railway station, which fortunately was quite close by.  A 20 minute wait got me onto a train to Wimbledon where I grabbed an espresso, switched trains and then walked home from Norbiton.

I got home about 17:00.  Recovery drink?  Bit late for that, should have had it just after I stopped pedalling.  Had a shower, got into my compression tights and cooked some more pasta to go with the remaining tomato/tuna sauce from the night before.  Visited Wiggle to see what a new derailleur was going to cost me.  I could always try bending the current one back into shape, but I don’t feel too comfortable with that.  Maybe I could use this as an opportunity to upgrade from 105 to SRAM Rival or Force (or maybe Red, are there any specials on?)  Of course I’d need to replace the shifters in that case (how much are they?  Hmm, quite a lot.  Been awake too long, starting to imagine silly things, spending money I don’t have.  Better stop looking before I press Buy.)  Felt sorry for myself and set my Facebook status accordingly.  Maybe I’d get some sympathy.  Opened a bottle of Gran Bombero, the older, wiser sibling of my favourite El Bombero.  That’s nice.

Managed to stay awake until 21:00 and even thought for while I might be able to have a cosy evening in with wife, wine and a film, but that was delusional.  My head hit the pillow and I was out in an instant.

Mechanicals aside, I had a great night/day out.  The FNRttC was phenomenal, the weather was ideal, the ride back was fun and I made some new friends.  It couldn’t have been much more enjoyable!  The Martletts riders were an inspiration and the charity director who came and shook all of our hands on Madeira Drive was overjoyed with the success of the event.

But I now have a broken bike.  I emailed Planet-X telling them what had happened.  Dave Loughran got back to me saying that they get very few problems with their Model B wheels but that he’d like to take a look at it.  I’m going to get the wheel and broken spoke boxed up tonight and sent back to them.  I hope they’ll be able to fix it up under warranty.  But for now, I’m off the bike.  I’ll keep you updated!

The route we took from HPC to Brighton can be found on Bikely.

Registration for the next FNRttC on 30 April is now open.  The route is to Southend-on-Sea.  More details here.

New Info ! PT Transindo motor located in the market area the week, South Jakarta in sales of motor vehicles of various brands. Our company already has branches in several major cities in Indonesia such as Jakarta, Semarang, Surabaya, Medan, Makassar and Denpasar.

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• Jalan Raya Pasar Minggu, Jakarta
• Tel. (021) 79183445

Vacancy for:: Mechanical, Purchasing and Marketing Manager

Work Location at: Jabodetabek-Jakarta, Bogor, Depok, Tangerang, Bekasi Read the rest of this entry »