Firanse r3 – 3D Printed Triax
Firanse r3 – 3D Printed Triax
In the year 2040 there
isn’t limit for what could be printed, every material and size is possible and
the recycling process has been completely rewritten. The products are cheaper
and more efficient because the internal parts could be more complex, resistant
and smaller, printed directly in place. And if something is broken it can
simply be reduced to its original material and reprinted again, even could
collect several things and make something completely different and convenient
with one’s lifestyle.
There is where the
Firanse R3 takes place, a completely affordable, personalized and ecological
car. This concept vehicle consists of two parts, the first one is the cab that
holds the seats, batteries and the principal controls, and second part are the
modular wheels that have the engines, brakes, suspension and direction system.
The model won 4th
Place in the GrabCAD and Makerbot Contest.
Designer: Luis Cordoba
Download Original CAD
version: Firanser3.stp
To contact designer,
you can use the comments sections below
Sprinkle Drone Lets You Take Underwater Pictures With Ease
Splash Drone Lets You Take Underwater Pictures with Ease
BY Mechanicalengineering.blogspot.com
Splash Drone Lets You Take Underwater Pictures with Ease
BY Mechanicalengineering.blogspot.com
If you want to shoot
underwater but can’t cough up enough money to purchase those high end drones,
such as HexH2o, then we suggest you look at Urban Drones’ Splash Drone. This
drone is an economical alternative and although it resembles a quad copter, the
ABS body is fully watertight.
Users can attach a GoPro camera on the underside on a waterproof 2-axis gimbal and then fly it to the area where they want to take pictures underwater. Once the drone is in the area, it simply has to be landed on water where it will float on surface while the camera is submerged. The drone stays there till the time it is commanded to take off
The camera features a built-in transmitter which enables to transmit
live video feed to the user for a range of about 1.6km. The drone can be flown
in real time through a radio remote control unit that comes as part of the
package or it can be piloted via flight plan that can be laid out on the
accompanying app. The app can also have the drone float in Follow Me mode. In
this mode, the drone simply follows the user (following the tracking device
that gets attached to the Smartphone).
To make it more practical, it sports a flare holder that has been located on the top to allow the drone to serve as an emergency beacon. It comes with a payload release mechanism as well through which the drone can drop cargo. The battery shall provides 15 minutes of flight time once fully charged. As of now, Urban Drones is busy raising funds on Kick starter. A pledge of $799 will warrant you one ready to fly unit. The retail price, however, is said to be $1,199.
Internal Combustion Engine by Richard Stone 3rd Edition
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Mechanical Vibration 5th Edition by S. Rao
Mechanical Vibration 5th Edition by Singiresu S. Rao
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some third party content may be suppressed. Editorial review has deemed that any suppressed
content does not materially affect the overall learning experience. The publisher reserves the right
to remove content from this title at any time if subsequent rights restrictions require it. For
valuable information on pricing, previous editions, changes to current editions, and alternate
formats, please visit www.cengage.com/highered to search by ISBN#, author, title, or keyword for
materials in your areas of interest.
The Velkess Flywheel: A more flexible energy storage technology
(Phys.org) —A new Kickstarter project called Velkess (Very Large Kinetic Energy Storage System) has recently gotten underway to bring an inexpensive flywheel to market. The project is headed by Bill Gray, who has taken a unique approach to flywheel design—a flexible rotor made of "E-glass," a common fiberglass used in everything from sporting goods to shower doors. Rather than use advanced carbon-fiber composites manufactured to exact tolerances, Gray's soft rotor flexes in response to destabilizing forces. It is thereby able to adjust to speed transitions that confound other designs.
With the memory of other flywheel venture failures, like Beacon, fresh in mind, Gray has cast the issues a little differently. While carbon fiber reinforced polymer is 6 to 8 times stronger than E-glass, he notes that E-glass is 10 to 20 times stronger per dollar. Similarly, E-glass will store 10 to 20 times more energy per dollar. The current prototype floats on a magnetic bearing assembly that can handle 2kW of power, and store 0.5 kWh of energy. Their final device will need storage closer to 15kWh to meet the first projected 48-volt off-grid power backup.
This scale up means replacing the 25lb flywheel rotor used for the video footage with a 750lb rotor. Scale-up creates new issues including special production runs for magnets able to support that load, and also equipment to safely handle all that magnetic forcefloating around. Details of the bearing-motor assembly are still not publicly available. Since the rotor design is essentially cantilevered from the motor in the vertical plane, anything here is possible. For example it appears that the rotor has a low-end speed of 9000 RPM. That would be where it is not even transitioning power. To get to the 15kWh regime, we are probably talking about a max RPM on the order of that of a jet engine.
Jet engine speeds are well above even the fastest comparable electric motor speeds. For example, high-speed spindles for machine tools, that might put out anything approaching say 30kW, would probably max out below 10,000 RPM—and these motors can cost over $50,000. Probably some fancy gearing is involved here, and therefore ample opportunity for unique combinations of bearings to be employed throughout the system.
Where mechanical bearings are to be used, they can have thermal sensors to detect any rise in temperature that would indicate a failure may be about to occur. The possibility for catastrophe due to fracture in one of the silicon nitride bearings can be therefore be greatly reduced. In an off-grid shutdown, the device would dissipate its energy in the form of exhausted hot air. As the rotor slowed over the course of ten hours, this would be a similar flow as a 1500-watt hair dryer might put out.
Gray expects the final units to be comparable in price to lead acid batteries while having a much improved lifetime. Also, the construction materials will be environmentally friendly. The rotor will operate in a vacuum and it is expected that only about 2 percent of its stored power will be lost to friction each day. These numbers make the newflywheel design look like it could be a viable alternative not just to batteries but also to other green schemes like compressed air storage, or pumping water uphill. If the Velkess project can get backing on a scale similar to what these technologies have attracted, flywheels may have finally come of age.
Introduction to I.C Engine
In this article you will learn about the I.C Engine
How its works?
Engine Clessification
Animation of I.C Engine
Introduction to Mechanical Vibration
Here you will learn about what is a Mechanical Vibration?
and
Types of Vibration
S.H.M
Principle to superposition applied to S.H.M
Beats
