02 / 11 / 2017 | Videos

Making propane forge



Blacksmithing is the ancient art that refers to the process of metal in order to make tools, objects, ornaments and various other things. It is still considered as a particularly, interesting activity and not so as a profession but mostly as a hobby as the state of the art equipment that it is used nowadays, makes the whole procedure easier and faster. Additionally, many professional and amateur blacksmiths impress us with their incredible creations which are undoubtedly works of art, pieces of valuable worth. 

Therefore, we came up with the idea to make a necessary tool used by blacksmiths and this is an oven that heats the metal placed in it in order to be bendable and easy to be shaped by the blacksmith. First of all, there are various ways to heat a metal such as using coal with air like they used to do it many years ago. Also, by using the phenomenon of induction, ovens using electrical elements or gas oven. This particular construction numbered 0074 is a gas oven that uses a burner of venturi. 

To start with, we took an old tank taken by an old compressor of 80 litres of air captivity. Firstly, we cut its two edges in order to make two ports that will be able to open to clean the oven if necessary. Next, we removed the parts of it that always stay open as there is the place where the objects are put in order to be heated.

Furthermore, on the top surface of the oven we placed six burners of venturi that we made them and they are capable to automatically absorb the amount of air that is needed to achieve the most desirable heating of the oven inside. Achieving the best heating of our oven, we also manage greater temperature, faster heating and better performance.

To make the burners, we used nozzles that are used for welding having a 0,6 mm hole. On these nozzles we used a thread to put the ‘butterfly’ that controls the insertion of the air in order to reach the best possible outcome. We made the procedure which the conduits of the gas are bifurcated to end up to the burners in such a way in order to use as much as we need from the six as a result to consume less gas if we are making something small.

Regarding the temperature of the oven, to keep the oven warm and prevent the increase of the temperature outside the oven we used ceramic fibre as an insulating material as well as at the bottom part of the oven, we added a special concrete that is tolerant in temperatures of 1400c as we wanted a hard surface at this place where the metals are located. 

Closing, we made a base for our oven to be at an ergonomic height. The oven was painted using fireproof paint tolerable in 800 c in black colour. Also, to try our oven, we made a knife during our limited free time. To sum up, we are very pleased by our oven’s performance as it is also very ergonomic. We hope to make many knives and other metallic objects in the future using our tool!

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26 / 09 / 2017 | Videos

Power Hacksaw



A very common machine capable of cutting metals is this week’s construction and it is called ‘power hacksaw’. Our version of ‘power hacksaw’ has not been applied any special modifications of the machines that already exist at the market. 

First, we started making our construction by creating its framework by metallic pieces of 12cm width and 6,5cm height. At this framework, we added the bases, on which we put a gear box taken from an old paper-cutting machine. The gear box’s role is to decrease the spins and increase the power of the motion transmission that leads to the slow and strong motion of the blade in order to reach the most desirable outcome of cutting the metallic materials. 

Moreover, to make the gear box move, we attached it with a dc motor 2hp taken from an old treadmill. Apart of its small size and its high power, another benefit of the dc motor is that using another device, we can fluctuate the speed of the motor and subsequently, the motion speed of the blade that is cutting our object at the particular time.
We can actually get advantage from this particularity as it gives us the opportunity to set the speed in accordance to the kind of metal. For example, for aluminium material we need faster speed compared to the iron that it needs slower speed and stainless steel which needs even slower speed.  

Additionally, using a 240v ac from our provision, we placed a regulator of volt and afterwards, passing the electricity over a bridge, we get dc electricity on our way out that powers our motor.  Therefore, while the motor is moving, the gearbox is moving and it is spinning in its exit, too.

However, to transform the spinning motion into a motion moving towards and backwards that is needed for the blade, we used a ribbon, which transfers the motion to the point where the blade is placed. Thus, the blade moves towards and backwards by using a linear bearing that is dragged towards and backwards on two motionless chromium-plated axis. At the front part of our construction, the making of a vice gives us the potential to hold the piece during its cutting. It can hold a piece up to 20cm width. 

Finally, to achieve a faster cutting, we made a basis exactly on the blade, where some kilos are placed so their weight puts pressure on the blade during the cutting process. As soon as the piece is cut, a limit switch deactivates the motor and the machine stops working, automatically. In this way, we managed to make the cutting process easier without being necessary to be there during the material’s cutting.

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06 / 09 / 2017 | Videos

Electromagnetic drill press vise


An electromagnetic vise made for our drill press is our 72nd construction. The usefulness of our vise is huge as most of the times the common vice is not able to hold the piece of material in order to drill it and its support is unstable, so the whole procedure is very time consuming. Therefore, making this vise we can hold bigger and smaller pieces of material in irregular shapes and thickness and still be able to easily drill without any special procedure to support them, in advance.

Initially, we took an old blade of 20cm x 55 x 1cm and we conglutinated two metallic angles 55cm long on it, so we set the spots where our vise would be screwed at the sockets of the table of the drill press. On the upper side of the blade, we shaped two metallic boxes, which are dragged to the whole surface of the blade and they are immobilized to the position we want.

Moreover, we put two modified transformers in each metallic box that we took from old microwaves. Then, we immobilized the transformers using a resin as well as straightening the upper side so that the surface that holds the objects, be completely flat. 

The power supply of these two electromagnets is 12vdc 20a. Also, the two coils in each electromagnet are attached the one with the other and each of them gets activated by a switch. Thus, we can use one of each separately or both of them together. 

Finally, we painted our construction in green and black colour. Also, we got impressed by its retaining strength. In addition, it is relatively a very cheap construction and it also encourages the recycling of old appliances. Moreover, it can be made in various sizes and shapes according to someone’s needs. Closing, a very useful electromagnetic vise for knife makers for instance, would be one that inclines in order to sharpen at the right degrees but it could be also used in many other cases.

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28 / 07 / 2017 | Videos

Dining Table 3



This time another dining table was made by the make it extreme team using the combination of metal and wood as the previous time. 

First, we made and designed a metallic framework which was relatively simple, nice and ergonomic. Our framework shapes a frame around the wood that is 6 cm wide while the legs that support the frame are 80 x 80 mm wide and 69 cm long. Therefore, the table is 75 cm tall. The four legs of our dining table are connected with two triangles at the bottom side and these triangles are connected with a square tube. The reason making these triangles besides the fact that is aesthetically prettier is also functional as the triangles gives the potential to another two persons to sit on the table and be able to touch their feet down. 

Moreover, the wooden surface that was placed on the top part of the frame, was made by a branch of an olive tree that was cut in wood. After processing and cleaning the wood from weeds, we conglutinated each piece of wood with the other in order to make a surface with dimensions of 90cm x 190cm.

Closing, we would like to say that the wood that was used for our table is olive tree because of its unbelievable beauty. Also, the spots that were empty resulted by the frames of the tree, were filled with epoxy resin. Finally, it is a time consuming construction and we should say that some complications and difficulties might arise in every stage of making it. However, this does not mean that it was not an important, constructive experience providing us much knowledge and pleasure.

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18 / 07 / 2017 | Videos

Homemade drone catcher



The last, few years, air drones have been widely known as they are remote-controlled, flying devices that are capable of filming and photographing while being on the air. Make it extreme team gives its own solution to the problem of the annoying drones that are flying in private places in this video. 

Although, we have seen various mechanisms instead of drones, our construction is unique and maybe it is the first homemade, anti-drone gun. Initially, our thought was simple, to create a gun with four barrels which would shoot a net with the help of compressed air and it would trap this flying device.  

First of all, we started making our construction taking two bottles of oxygen of one use only that are durable up to 150 bar. We chose these particular bottles as even after our processing on them, they are still safe to tolerate high pressures. Also, we used two bottles in order to have more litres of air. In one bottle, we put a car’s wheel valve where the air is entered in the bottles and in the other, we put an indicative clock of air pressure. Then, we attached these two bottles on a valve that controls the opening and the closing of the exit of compressed air from the tanks.

One of the most important factors for the right performance of the gun is how fast the valve will open and release the air. Therefore, we connected the valve with a strong spring that as soon as the trigger is pulled, the trigger also pulls  with pressure and speed the valve to open. Next, we bifurcated the air with four barrels. Also, we bifurcated the air with the same accessories in order to achieve exactly the same distribution of air in each barrel of our gun.

Regarding the barrels of the gun, we used aluminum tubes of 1 meter length. Additionally, we used a mechanism in the center of the gun that diagonally opens and closes the barrels so the gun can be regulated to shoot in a short or in a long distance. The net has four bullets on it that are inserted in the barrels and when the bullets are released with power, the net is drifted away with them. 

Closing, we would like to say that we are very proud of our construction as its performance was excellent and our successful shoots made us happy.


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