home made cnc machine

Home made CNC engraver with drill machine

Hi ,

Here is an interesting video of home made CNC engraver with drill machine and other garbage components.

He has explained in detail including Cutting of the iron profiles then mounting the ball bearings. Holes creation and bores through the edge of the iron sections.
cut 6mm thread by bolts

home made cnc machine

home made cnc machine

making of runners of the X axis
making of runners of the Yaxis
making of runners of the Z axis

Mounting of 6mm threaded rods

drives, plotter system integration
Check the achieved precision, speed control


  • Engraving a glass plate
    Cutting styro foam
    Milling of Plexiglas
    Milling of gears
    Milling of aluminum


for your academic projects

cnc making engraver machine junkyard projects cnc machine from used items etc


CNC Programming tutorials PDF

CNC Programming tutorials PDF

Haas CNC Lathe Programming PDF



Access Tutorial HERE : http://goo.gl/CpXeRy



Corner-Machining Unit
Facing Unit
Threading Unit
Grooving Unit
Turning Drilling Unit
Turning Tapping Unit
Mill-Turning Unit
Manual Program Machining Unit
Work piece Transfer Unit
Subprogram Unit
Simultaneous Machining Unit
Two Workpiece Machining
Workpiece Measuring Unit

Access tutorial here : http://goo.gl/u3iezi

CNC Programming tutorials PDF

CNC Programming tutorials PDF

HAAS FANUC FRONIUS KUKA ABB CNC Programming manuals Tutorials Handbooks PDF ereader ebooks download read online


Types of hammer crusher

Types of hammer crusher

Types of hammer crusher:

1. Single shaft hammer crusher.
2. Double shaft hammer crusher.

Types of hammer crusher

Types of hammer crusher

1. Single Stage

Hammer crusher: There suitable used to crushing ordinary fragile ores of the compressive strength no more than 200Mpa, such as lin1estone, gypsum, coal, marl, sandshale etc. These series product features of high crushing ratio, even product graininess, simple construction, reliable operation, easily maintenance, economical running cost etc,so are widely used
in cement industry.
2. DoubleShaft
Hammer Crusher This is used for crushing medium hard rock. For wet lime stone, wet marl, clay, chalk, gypsum and similar raw materials. It permits a large feed size and is capable of producing a clearly defined finished product size being pre selected by the gaps of the discharge grate. This crusher distinguishes itself by its proved reliability and robust construction, ensuring a long service life. The feed material is continuously fed to the crusher. Large material blocks arc first precrushed between the rotors. Subsequent reduction takes place on the anvil before the finished product is produced on the discharge grate. This mode of operation without fixed
impact walls also permits the handling of comparatively moist and sticky material. Hammer crushers are used in coal power stations, the basic and the iron and steel industry for crushing of coal, limestone and gypsum rock, as well as different type of materials. Throughput capacity is up to1.500 t/h. After entering the crushing radius of the rotor, the feed material is grasped by the flexible beater heads, thrown against the grinding wall and crushed gradually. Secondary crushing is carried out in the lower section between the rotor and the grinding wall. The crushing ratio is up to 1: 15 (in individual cases up to 1:30), max. Feed size is approx. 300 mm. As grinding walls are arranged on both sides, the direction of the rotor can be changed (reversible design) so that the
beater heads can be used to the optimum.

4 RS engine will power the new NASA SLS

Human to Mars Mission – Nasa tests new engine

Nasa tests its new rocket engine for their mission to send humans to mars by 2030.

Engine : RS 25

4 RS engine will power the new NASA SLS (Space launch system)

photo from NASA

4 RS engine will power the new NASA SLS

4 RS engine will power the new NASA SLS

previous NASA RS 25 test videos

Long run test conducted on 25/6/2015 by nasa

500 seconds long test

conducted on 11/6/2015



Tsunami Earthquake and Fukushima

Tsunami Earthquake and Fukushima

Tsunami Earthquake and Fukushima

Tsunami Earthquake and Fukushima

Tsunami Earthquake and Fukushima

Earthquakes and tsunamis are two so devastating phenomena that it’s impossible not to be frightened by them

It is written about the impact of the meltdown accident at the Fukushima nuclear power plant, but must not forget the possibility to encounter such an accident you

Fukushima plant still leak 300 to 400 hundred tons of radio active water into the pacific ocean each day, for the next thousand of years , how we keep quiet on this and the government does not care , will led the whole of Pacific Ocean unfit for human or seafood to exist

Even though Fukushima is a localized problem, but the radiation levels elsewhere in the Pacific are fairly low. Woods Hole has been taking measurements since the leak occurred

Current water capacity for contaminated water on site is upwards of 250 million gallons. The actual amount of water flowing through the damaged cores is estimated to be a little over 100,000 gallons a day, and that water is captured. The worst leak I’ve got info on was 80,000 gallons, and that was from a storage tank too far inland to get to the ocean. There is water seeping into the sea, no doubt, but the 400 tons (105,000 gallons) is an exaggeration; that’s the amount of water that is collected and stored on a daily basis

There are scientists in Hawaii, Alaska and the US who are making measurements. Public volunteer networks are as well.


Load Cell Calibration methods standards PDFs

Load Cell Calibration methods standards PDFs

Load Cell Calibration methods standards PDFs

Load Cell Calibration Steps (Simple method)

you need the following components

a load cell, a multi meter and a nine volt battery

the first step for checking load cell is to measure the resistance on the excitation voltage, whether the conventions to load cell are correct and the resistance is within the tolerance range you can find the relevant tolerances in the datasheet.

first measure the excitation voltage and run the test for the measurement signal as well

now connect the battery to the transducer please use nine volt batteries

after the battery is connected check the voltage level it should be somewhat higher than nine volts. conduct the measurements by placing a way to load cells for exampl. if the load cell is functioning correctly the signal rises to load value and then drops to the initial point the tolerance to the zero-point is percent

An Overview of Calibration Methods and Procedures for Process and Inventory Weigh Systems


Studies of Calibration Procedures for Load Cells and Proving Rings as Weighing Devices


A Code of Practice for the Calibration of Industrial Process Weighing Systems


Load cell calibration methods video

TR150 Load Cell Indicator Calibration Demo

higgs boson explained

Higgs Boson simply explained

In 1964 a physicist by the name of Peter Higgs took some ideas that were floating around at the time, added an insight or two of his own, and proposed that there was an energy field that permeated the entire universe.
This energy field is now called the “Higgs field.”
The reason he proposed this field was that nobody understood why some subatomic particles had a great deal of mass while others had little and some had none at all! The energy field that Higgs proposed would interact
with the sub-atomic particles and give them their mass. Very massive particles would interact a lot of the field while massless particles wouldn’t interact at all.

higgs boson explained

To better understand the idea, we can use the analogy of water and swimmers.In our analogy the water serves the role of the Higgs field.

A barracuda, being supremely streamlined, interacts only slightly with
the field and can move through it very easily.The barracuda would then be similar to a low-mass particle.

In contrast, my buddy Eddie, no stranger to doughnuts can only move very slowly through the water.

In our analogy, Eddie is a massive particle made massive by interacting a lot with the water.

The lightest of the familiar subatomic particles is the electron, while in the subatomic world the king of mass is the top quark.

It weighs about as much as an entire atom of gold, about three hundred and fifty thousand times more than the electron!

I’d like to stress that we believe the top quark is not more massive because it’s bigger. It’s not!

In fact, we believe that both the top quark and the electron are exactly the same size!
Indeed, they both have zero size!

The top quark is more massive than the electron simply because it interacts more with the Higgs field. Actually, if the Higgs field didn’t exist, neither of these particles would have any mass at all!

Now, in the press

you don’t hear about the Higgs field but rather the Higgs boson.

How are these two things related?
The Higgs boson is the smallest bit of the Higgs field.

To understand how that works we should again return to water.

Everyone knows what water is.

If you’re immersed in it you know that water is everywhere. It’s a continuous medium and there are no holes in it.

We also know that water is made of molecules – specifically H20.

If you hold these two ideas in your head with the realization that water consists

of countless individual molecules you can now begin to appreciate the Higgs boson.

The Higgs field that gives subatomic particles their mass is made of countless individual Higgs bosons, just like water is made of individual molecules.

You should keep in mind that the Higgs boson hasn’t been discovered yet, and what I’m describing is simply the most popular idea as to why subatomic particles have the masses that they do.

Finite Element Modeling For Stress Analysis PDF

Finite Element Modeling For Stress Analysis PDF Download

Finite Element Modeling For Stress Analysis PDF Download – Educational Purpose
Finite Element Modeling For Stress Analysis PDF

Rober D Cook





– links downloaded from public search engines

air plane landing gear in house testing

How they are testing aircraft landing gears

A nice video from discovery channel

air plane landing gear in house testing

Aircraft landing Gears Testing Videos (In house testing of air plane landing gears)

Test Name : Landing Gear Drop Test

Test Specimen : AirBus A380

Test Engineer : Neil Walker (Senior Test Engineer)

Head of Engineering : Barry Levoir

Proceed to the video