19 / 02 / 2018 | Videos

Hydraulic press machine

The great usefulness of this machine led us to the creation of the video 0077. For many people the hydraulic press that is presented on this video is just a machine with an amazing power but for the ‘make it extreme’ is a precursor of the amazingly, big press that we are planning to make in the future. However, this doesn’t mean that the current press is not useful enough as it is capable to meet the needs of the user covering the 90% of the tasks required for its use.

The hydraulic press is a metallic structure that is resistant to tensile loads and on its top, there is a hydraulic plunger that is able to exert a big, compressed load on an object that is located inside it. Also, it is useful for many tasks like compressing objects, jamming two metallic pieces to connect them in order to give a shape to metallic plates, unjamming and jamming the bearings as well as cutting metal pieces and other kinds of material and generally for multiple uses that require great compressing power.

The procedure of making our structure began since we had cut the pieces of our metallic press using a bar of 6 metres long, 15 cm width and 12mm thick and a metallic beam UPN 6 metres long, 16cm width and 7cm tall. The height we defined for our press is 180 cm and 83 width with net working width in 70 cm. Each piece which is 180cm tall was pierced 7,5 cm making holes of 35mm to have various gradations at the level of the task.

At the top of the metallic structure, we placed a hydraulic plunger of 80 mm width that provides us with power of about 15 tonnes. This plunger moves up and down having a distance of 40 cm taking hydraulic pressure by a power pack that we made in one of our previous videos. The power pack with the video no. 0068 can reach the 300 bars pressure and it can connect with other machines which use hydraulic plungers.

At the end of the plunger, we made a thread to be able to change the ‘‘heads’’ that exert pressure so that we can choose the proper one for each task. Another component that we used and it makes our press more ergonomic is a metallic ring which is placed at the end of the plunger. Two chains are also put on it to connect the working table of the press with the plunger so that the table can be moved up and down with equal power with the plunger. This has been done to avoid doing the whole procedure by hand straining the user’s body.

Finally, we completed our machine by painting the press in the green and black colour and we are very pleased for our creation.

Get access to the downloadable Plans for our projectshttp://bit.ly/MIEplan

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29 / 01 / 2018 | Videos

Making a big clothespin

This huge clothes pin was the structure that we made the previous week with the number 0076. We took the decision to involve ourselves in the procedure of making such a structure in favour of a very good friend’s request. Besides of being a decorative piece in his store, he will also use it to place pieces of his work as his working place is also his showroom.

To start with, we collected 4 pieces of 30cm width and 240cm length made of pine board. Then, we cut all of them to shape a clothe pin to avoid declination of the one piece to the other. Next, we cut them in stripes of 40cm that formed the width of the clothespin. Also, to shape the circles, we put an aluminium stick on the router and we used it as a protractor. While, to shape the width of the circles, we cut the 12 pieces of each circle of 40 cm length inclining at the two sides at 15 degrees. 

Lastly, as we completely shaped the two sides of the clothespin, we made a gigantic spring to connect them, making our big clothes pin functional. Making a rough machine to make the spring and using a metallic, circular stick of 14mm and 6m length, we managed to make this big spring. Afterwards, we painted the spring in yellow colour and the wood in dark grey. In conclusion, we must admit that we are unbelievably satisfied with the outcome as we created an amazing piece of furniture.

Get access to the downloadable Plans for our projectshttp://bit.ly/MIEplan

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15 / 01 / 2018 | Videos

Making air vane motor

In our new project, which is a motor that moves with the energy of the air, the pleasure that we receive during this project is double as besides the joy we got during making it, there is also the joy of recycling a system which is non-functional anymore.  This happened when we collected pieces from a broken air conditioning compressor taken from a car and from that we made a pneumatic motor, which can be used in our future projects.

The type of motor that we made is called ‘air vane motor’ and it can be used in various pneumatic tools and systems. Firstly, we started making it by taking the rotor of an old compressor as well as the vanes, which were divided right in the middle in order to enable the rotor to spin within the cylinder. We, also took the bearing of the old compressor to enhance the concept of recycling. 

Then, we turned two aluminium papers sized 100 mm in diameter and 50 mm in thickness to make them the place where the bearings and the o-rings will be placed so that the rotor to be rotated without making any noise, and to achieve a smooth move and keep the air inside the machine when it’s activated. Further, a cylinder was placed between the two aluminium papers that was taken by a tube that is used for making hydraulic pistons and it has great preciseness and smooth internal surface to make the vanes of the rotor slide smoothly on the walls of the cylinder keeping the air inside. 

The cylinder was placed at the centre of the two aluminium papers while the nests of the bearings were made 9mm away from the centre. Therefore, the rotor of the motor is located off centre in relation to the cylinder as a result on the one point of the rotor, the vanes are completely closed while at the exact opposite side of it, the vanes are completely open. In this way, when the air is inserted to the cylinder it pushes the vanes that are completely open and when the rotor spins, the air is exerted from the cylinder as a result we managed to have constant air provision. This procedure happens constantly so the spinning is constant as well.

Finally, there are two holes on the cylinder that work as the insertion and the exertion and they can work in reverse in order to change the torque of the motor’s spinning. Certainly, this functional motor was not just made to present its functionality but also to show to the public how it works. Also, we are aware of the fact that if we used vanes made of carbon fibre, a lighter rotor and many other things would increase the performance of this motor. Although, we should highlight that at 8 bars, the particular motor reached an exertion in about 3000rpm and a sufficient torque and compared to the amount of money that we spent to make it, we are sure that it worth every minute of the procedure of creating it.

Get access to the downloadable Plans for our projectshttp://bit.ly/MIEplan

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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!

Get access to the downloadable Plans for our projectshttp://bit.ly/MIEplan

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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.

Get access to the downloadable Plans for our projectshttp://bit.ly/MIEplan


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