15 / 03 / 2019 | Videos

Making HYDRAULIC hand pump



The make it extreme has shown its passion for the hydraulic systems through the various constructions that it made as most of our projects have been made with them. This time, we have decided to make a manual, hydraulic pump, which can be used to transmit the oil with pressure to the various tools that we make. 

The manual, hydraulic pump is a construction which through it the human strength is turned into pressure. The pump that we made has the potential to reach the 300 bars or in other words the 4350 psi. The exciting part of this project is that we used very few already-made accessories and this exceeds the pleasure that we get during its making.

In order to pump and push the oil, our construction needs to use a small piston that the human can open and close by using a lever. The lever multiplies the power that is exerted on the piston and that is basically our pump. The small size of the piston needs lower power to be moved compared to a bigger in diameter piston of the equal pressure. By using this piston and two one-way valves, our pump has been completed.

When the piston is lifted up, the oil passes through a cylinder but when the piston declines then the oil is necessarily exited from the one of the two valves without being able to return. In this way, when the lever goes up and down, the piston pumps the oil and transfers it to a particular exit that is used to move our hydraulic machines and tools. However, to resend the oil to the tank of the pump and to control the decrease of the pressure that we exert, we use a regulator valve.

Even though, it seems a simple construction to make, it has many challenges and it is incredibly handy. Some of its advantages are that its silent, user-friendly, portable, has a great power of pressure, it is small in size and safe to be used. We can’t describe how happy we are for the amazing function of our construction 0092 and of course we are also pleased with the design that we made!

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08 / 03 / 2019 | Videos

Chain Saw to concrete groove cutter



Construction number 0091 is a very convenient tool for the constructive industry. This tool can make two canals simultaneously on the walls of a house and then the material used for it can be removed easily between the two canals to place the piping and many other things. Another very good use of it is the opening of the canal on a concrete to be able to put the metallic clew for sliding doors, the cutting of the stone as well as of the iron. In simple words, our construction is a chain saw hack.

Firstly, we took a tree-cutting machine and we removed the chain that cuts the wood to place a small gear for a chain of motion transmission. Next, we made a metallic framework, which on its edge there is an axis that spins in two bearings and at its centre the prementioned chain passes through. Thus, when the tree-cutting machine rotates then the axis spins too.

In each of the axis’ edge, a disk is inserted in a distance of 10cm. Then, we made the threads of the axis counter clockwise so that when the disks find resistance, they won’t be able to unscrew and slacken. After that, we took two protective covers from an angle grinder and we placed them in order to use the tool with safety. 

At the beginning, we were quite hesitated regarding the fact how efficient this tool would be but after using it we got impressed by its accurate, fast and functional cutting. Also, a huge advantage of it is that it is portable so it enables you to transfer it even to places where there is no electricity. Changing the disks and placing a disk for cutting metals it  easily enables you to cut metallic objects, too.

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