GEC WRITHLON

This machine is very precise and accurate. Therefore, maintaining quality in mass production is very difficult to manufacture partly high-quality parts. But due to the CNC machine, it becomes easy. The surface of the machine made in these machines is precise.

The entire work of CNC remains automated, and there is no role during the process of the person. And it's designed to keep security in mind.

Due to its high production speed, its production cost is very low.

Because of the accuracy and precision of the parts made in this machine, and the system of quality assurance is already made, the wrong parts get very little from this. And the same thing makes the CNC machine efficient.

In this machine, the operator needs less skill set for the manual (conventional) machine.

It is cut into the circular direction of the workpiece, which is also called "turning." The production of the complex part of the complex part cannot be in the lathe, it is in CNC lathe. It has two axes: X and Z.

CNC can put multiple tools in lathe's turret. Due to the advantage of this machine, it is replacing manual lathe machines with old technology. CNC lathe machine costs up to 8 to 30 lakhs. The use of this machine has increased in the past few years.

The material is removed by the rotary cutter in the milling process, CNC milling machine works on the exact same principle. It has two types:

1.VMC (vertical machining center)
2.HMC (horizontal machining center).

In this machine, parts of large-dimension parts are produced. Generally, sheet metal, cutting woods, plastics are manufactured in the world.

The Laser you are thinking is too strong. In this powerful laser is used for the cutting process. This is the cutting of woods, plastics, metals.

It happens just like the CNC router. Size and setup are also the same. The plasma light is used for cutting. It is useful for cutting 2-dimensional profile shapes.

Do you know that 3D printer also has a CNC type machine? Instead of removing this machine part, a part is prepared by raising the layer on the layer. It's working thus pushing the hot plastic with a small hole and the layer by layer is thrown.

Pick and place machine

“The most beautiful dream that has haunted the heart of man since childhood is to have wings and fly high in sky like a bird……and breathe the same way as the angels do……..breathe up there in the clouds where air is very pure and fine, bracing and delicious…..”

Surely, humans have tried to make this work. It seems like it could work. Unfortunately, we are doomed to remain as ground-based animals. Well, that is unless you count powered flight or gliding. We can do both of those. Then why not? Perhaps the simplest answer is “we are too big.” Oh, too big you say? Well, surely we aren’t too big. Maybe if we just had bigger wings, it would work. Nope. It won’t work (well, probably won’t work). This falls into a category of things called “stuff that doesn’t scale like your intuition.” Or perhaps I should say “bigger things aren’t the same as smaller things.”

Now for my super short calculation hopefully to be followed by some useful data. Let me represent the muscle of an animal as the following cylinder. So, the diameter is 2r with a height of h. Let further suppose that the strength of this muscle is proportional to the cross sectional area (not strictly true – but just hold on) and the weight is proportional to the volume of the cylinder. This would give a strength to weight ratio of: Here, C is just some constant. 

But what matters more is the result. If we make an animal twice as tall and scale the rest of the dimensions proportionately, r would double and so would h. But the strength to weight ratio would be half as much as the smaller animal. Ok, well we can fix that. Let us double the mass (volume) but keep the same strength to weight ratio. We would need the same height, and the radius would have to be sqrt(2) times larger. Here is what that would look like. 

This bird has a wingspan of 3.7 meters and a mass of about 12 kg. Here is the plan. Let us look at a whole bunch of birds and see if there is a correlation between mass and wingspan. Here we go. Almost all of this data has been scraped from Wikipedia. Not all birdWikipedia pages are alike. Some list wingspan, some don’t. And here is the data. 

Well, that turned out a little bit better than expected. But what next? It would be nice if We could fit

some function to this data. We could just start guessing functions to see what works, or We could see

what makes sense. The data actually look parabolic. This would suggest a function something like:

Where w is the wingspan, m is the mass and C is some constant. This is􀅶’t really what we would have expected, but we will go with it. In order to find the constant C, We have to plot w2 vs. the mass. This should be a linear function and we can find the slope. Here is that plot.

This fit gives a slope of 0.64 m2/kg and an intercept of 0.62 m2. It looks nice except it doesn’t seem to fit very well with the smaller mass birds. We could probably get a better function, but this will do for now.

PREDICTING THE WINGSPAN OF A HUMAN

If a human was a bird, what kind of wingspan would this Big Bird have? Let us take a grown human

male with a mass of 70 kg. If we put 70 kg in for the mass in function, we get a wingspan of 6.7

meters. Sure that is big, but possible. Right? Well, how much do we think 6.7 meter long wings would weigh? We may doubt that wing mass is negligible. If we built them out of balsa wood, how much mass would it add? Let’s just estimate an average wing thickness of 1 cm and a width of 2 meters.

This would be a balsa-wood volume of 0.134 m3. Balsa wood has a density of about 160 kg/m3. This

would give a wing-mass of 21 kg. AH HA. But now we need bigger wings. We could keep playing this game until we find wings that would work – but here we see the problem.

The problem is that if we have 7 meter long wings, we really aren’t going to be able to easily fit them in your car. And that is why humans can’t fly.

Can Big Bird fly? We have never seen that. What would Big Bird look like with correct sized wings? First, need to guess his mass. This is tough since he isn’t really human. Let us ball park his mass at 90 kg (since Wikipedia lists his height at 2.49 meters). This would be a wingspan (if his mass included the wings) of 7.6 meters. Let us redraw Big Bird with wings this size. Now when we can’t fly , we are to make ourselves satisfied with the powered flight and this is the only way, we can fly…