# Search for the design centre in Topics

### The Plaster Room Help Forum

Use our Technical Guides to learn how to use the Design Centre facilities.  This is the guide to the Plaster Room, watch the videos and feel free to ask questions here in the forum...

Topic by learningspace    |  last reply

### A different water wheel design?

I posted this idea on the makezine forums recently and got 1 answer but it seems I did not explain what I meant too well so I thought I would try here to see what you think. See the diagram at http://www.nelliott.co.uk/maker/water-wheel.jpg Would this produce more power than a conventional water wheel? My theory is as follows: In the case of a normal wheel each bucket/segment when full of water has the turning power equal to weight of water x length of horizontal line such as the yellow one in the diagram. That is it's weight exerts a force to turn the wheel according to it's horizontal distance from the centre of the wheel. If instead of the normal wheel the 3 blue circles represent 3 sprockets.There would be a whole series of buckets attached to the red lines ( which represent a chain ).Water would pour into the buckets as shown, so it would simply propel the buckets vertically down.The turning power of each one of these would be equal to to weight of water x radius of large wheel. So each would have the turning power of the best one such as the line from H to the center of the wheel. As far as I can see this would mean a large increase in torque over conventional which I hope would easily offset the losses due to the chain drive. What do you think?

Question by buteman    |  last reply

### Singapore - Meet Awesome Makers - Eric Wilhelm at Prototyping Lab@National Design Centre

I'll be visiting Singapore this week. OmeMaker Group has graciously offered to host me for an informal talk and Q&A; session about Instructables and Pier 9. The event is Thursday 2015-08-20 at 7:30 PM at Prototyping Lab@National Design Centre. You can register to attend here. I'm looking forward to meeting Instructables authors in Singapore!

Topic by ewilhelm    |  last reply

### In alluminium etching process what concentration is used , i want detail and is there any easy way in etching process ?

Our company is moulds making company we are trying to make chemical etching

Question by design-centre    |  last reply

### Arvind Gupta: Turning trash into toys for learning

Great TEDtalk where Arvind Gupta discusses simple toys that are inexpensive and yet educational.  His enthusiasm as a toy inventor just beams from the presentation. video link Description from TED: At the INK Conference, Arvind Gupta shares simple yet stunning plans for turning trash into seriously entertaining, well-designed toys that kids can build themselves -- while learning basic principles of science and design. Arvind Gupta is an Indian toy inventor and popularizer of science for kids. Creating simple toys out of trash and everyday goods, he illustrates principles of science and design in a memorably hands-on fashion. He works at the Children's Science Centre in Pune, India. He's the author of numerous books available in English, Hindi and other Indian languages, including Little Toys, Science from Scrap, and Science Skills & Thrills: The Best of Arvind Gupta. His Low-Cost Equipment for Science and Technology Eduction is available as a PDF download through UNESCO.

Topic by CrLz    |  last reply

### Mains Beer?

Topic by lemonie    |  last reply

### The new "face" of clocks.

Two men in their bedroom, with time on their hands... Building clocks. An elegant, simple new design of clock is being produced by two entrepreneurs in a bedroom. The spiral face rotates, clockwise, every 12 hours, slowly winding a small ball up the coiled face.  At the twelfth hour, the ball drops into the centre of the face and back to the beginning. The clock is an art piece, costing hundred of pounds, but I bet you could build your own version from off-the-shelf parts or a recycled clock. After all, the prototype was knocked together from beer cans and gaffa tape... BBC video article. Aspiral website. Advertising video: Oddly philosophical video:

Topic by Kiteman    |  last reply

### Electronics for five year olds?!

Hi everyone, I joined the forum and became a member because I'm getting rather starved for ideas... A community centre (or center as you spell it south of the boarder) asked me to design/ come up with some drop in classes for children and their care givers. Some kids could be as young as five, and they want the class to have an electronics, hackery, tech based focus. I've done this with 12-17 year old, but this 5 year old thing is throwing me for a loop. I'm thinking about joule thieves and home made robots, but does anyone else know of a project that's gone over really well with young kids they can share at all? I'm not sure if this is in the right category, apologies if it isn't.

Topic by youhearditherefirst    |  last reply

The Challenge   To design and build a device to travel 90cm down a vertically positioned broom handle in as close to 30 seconds as possible.   In the Leonardo Centre there will be broom handle fixed in a vertical position. 11cm from the top is a (start) line from which the device must start. 90cm below that is a second (finish) line, below which the device must finish. The challenge is to build a device that takes 30 seconds to travel this distance.   The Rules All parts of the device must start above the start line. All parts of the device must end up below the finish line (time will be measured to when this is achieved) Once started or released no assistance can be given to the device   The Competition There will be a competition for each year group. Devices will be timed and the one that completes the descent in closest to 30 seconds will be deemed the winner

Question by 08keen    |  last reply

### Cable tester? xlr, jack, phono etc

It looks pretty simple: http://www.studiospares.com/test-gear/studiospares-ultimate-cable-tester/invt/458260/ i was wondering whether anyone could help me with how i would go about building one of these from scratch within a hobby box? i have components (sockets and plugs, veriboard etc) but i've never designed a circuit before so any idea would be great! im thinking two rows of LEDs that match pins 1 to 1, 2 to 2, and 3 to 3 at each end of the cable being tested (maybe 4 and 5 too) refering to tip, ring sleeve on jacks, centre pin and ground sheath on phono, and pins 1, 2, 3 on xlrs. any schematics/idea please! take a look at the link for a better idea. LEDs to indicate shorts and phase switch would be cool too.

Question by jamesjamesjames    |  last reply

### Looking for micro pump for steampunk liquid-cooled laptop tray

Anyone with an aluminum powerbook knows how scary-hot the get during a dvd rip. My solution is a steampunk liquid cooling tray. It would have a copper plate with a thin liquid reservoir just under the centre, where the processor is, with brazed copper tubes emanating outward under the tray. But to keep the tray thin, I can't take advantage of the natural upward flow of the hot liquid and I want to avoid radiators hanging out the back or sides. I figure I need a wee pump to push the liquid out to the outer edges to cool. Running off the USB of course! I've seen the one made from a phone vibrator, a pen and some tubing. That'd work, i suppose. Does anyone have any suggestions on where to find a low voltage micro/nano pump? As for the USB, I found a mini voltage converter here. I can handle the design, it's the technical (esp. electrical) aspects that make me stumble. Any help would be so appreciated.

Topic by jodybaker    |  last reply

### City Flying Taxi

LINK"Developed by the British company Avcen, the Jetpod is a small twin-jet aircraft with newly developed VQSTOL (Very Quiet Short Take-off and Landing) technology - and itâ€™s aimed to make short-distance air travel possible in built-up urban areas by the year 2010.""75 Jetpods would service a city the size of London and thereby relieve road traffic of 37,000 return car journeys every day. A one-way flight from outer London to the city centre would take just 4 to 6 minutes. The Jetpod doesnâ€™t even require a conventional runway. It can land on grass, dirt or stone-strewn areas. Avcen designed the Jetpod using the latest jet engine technologies for optimal fuel efficiency and lower emissions noise levels, when compared to car transportation.TECHNICAL SPECIFICATIONSDRIVE SYSTEM: Dual jet enginesENGINE THRUST: 2 x 13.3 kN (3,000 lbs)CRUISING SPEED: 550 km/h (350 mph)FLYING RANGE: 1480 km (920 miles)OPERATING PAYLOAD: 700 kg (1,543 lbs)SEATING CAPACITY: 7"This is pretty cool, can't wait to see if it actually gets into production.

Topic by laminterious

### Electron Club Open Day Show and Tell, Glasgow 13 June

Topic by greensteam

### McMADSAT make and do, show and tell. Scotland's first Maker Event 2009. Full report

Topic by greensteam    |  last reply