28 / 07 / 2018 | Videos

Making F1 RC 48v 1000w

The project number 0085 revives memories from our childhood when we used to drive remote controlled vehicles for our own entertainment. The difference today, though is that we can make our own RC in the size that we desire. Therefore, using our new welding method which is called ‘migatronic tig PI250’ we were able to make the frame of our vehicle by aluminium. Our aim was to make a formula 1 on a scale 1:2.

Initially, we bended the aluminium and then we welded them making the frame of our vehicle. To make the wheels of our vehicle, we chose the ones that are used in go karts. Next, we attached the back wheels with a stainless-steel axis 22mm thick. The axis spins on bearings, which were applied on our frame. To avoid exerting weight, we decided not to use a differential system to move the back wheels. Although, we knew that using a differential system we would avoid various false powers during driving and we would achieve a better stability on the road, better turning and less straining on our motor. 

Regarding the transmission of the move from the motor to the axis was managed with a chain. First, we tried to apply a machine taken from a tree-cutting machine but we faced a lot of problems that a great amount of money was required to be solved so we took the decision to make an electrical RC. Therefore, we took a motor of 48v 1000w that is usually used on e-bikes and we applied it on the frame of our formula. Surely, regarding to our project the preferences vary having to decide between a petrol engine and a motor, but we did our best at the particular moment. 

To feed our motor, we used our project 0084 that we made on our previous video. That battery that we made is 8.5Ah 52v. To turn our vehicle, we used a window motor of a car because we did not have a big servo. As regard to its final shape, we used a plastic pvc in black colour to cover the frame, on which we stuck stickers in REPSOL colours that we use in every machine that the team of the make it extreme makes.

To conclude, we achieved a very beautiful design in all the levels of our vehicle. We made it both quite fast and light. It can run up to 60km speed with enough torque in order to be able to transfer even a human weighing 80kg, easily. The feeling that you get driving a remote controlled, big vehicle is very different from driving a normal one. Our remote controlled vehicle is 233cm long and 90cm wide, 40cm tall and 38kg heavy. We ended this project hoping to make many more RC vehicles in the future.

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01 / 07 / 2018 | Videos

Making E-Bike Battery

Nowadays, we can see that the world turns to the electrical vehicles as they are silent, they don’t pollute the environment, they are economical and most importantly their current functional performance is sufficiently good.  The reason that their performance has been now increased is because of the batteries that have been created which are very efficient, light and quickly rechargeable. Therefore, we have decided to make our own battery that will be able to feed the vehicles that we will make in the future. 

First, we took some lithium batteries 3,7n and we attached the one with the other in a row. Every cell of battery contains 13 batteries, the one connected with the other as a result we have 52n in the end. Then, we connected 4 cell of 13 batteries alongside so that our battery has 8,2 Ah stamina. 

To make all the above combinations possible, though, a special device must be used and it is called ‘protection board’. The role of the particular electrical device is to make the batteries balance between each other, protect the battery from overheating and during its discharging as it keeps an amount of energy within the battery in order to have a longer stamina as well as it is responsible for its charging and discharging. In this particular case, we used a protection board 13s 45A.

To classify the batteries in a right order, we cut a case on an acrylic material and this case keeps the batteries stable to remain in a particular row and place. On this case, we created some points where the contacts that connect the one battery with the other are located. The advantage that we gained creating this case is that the batteries don’t need spot welder. After, we had connected the cables from the protection board to the batteries, we made a ventilated box in which we put our battery. The box protects the battery from damage or rubbing and coming in contact with the environment. Also, it gives a more elegant appearance to our battery.

To sum up, our device with the video number 0084 ended with success and we are very happy that now we have the opportunity to try new electrical devices and vehicles.

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09 / 06 / 2018 | Videos

Making a Monowheel

The making of every handmade motorbike has been always an exciting project, imagine in this case referring to a monowheel. The monowheel is a machine that has only one wheel and the driver sits inside it. The wheel is leaded by other smaller wheels and it is moved by the machine through a rubber wheel, which is connected with the main wheel. 

Firstly, we started our structure by making a big, metallic wheel with 130cm diameter using a tube of 40mm diameter. Then, we lined the metallic wheel with a rubber in order to achieve having the benefits that all the tyres have on the street. Also, due to the fact that the wheel is big in size, we took 4 tyres from small motorbikes and we cut them as well as we glued the one with the other in order to form a tyre. 

Afterwards, we made 3 wheels with a bearing using Teflon PTFE and on which the big wheel rolls. These three wheels were attached with the inside part of the wheel on a framework. On this framework, another machine 110cc 4 stroke was placed. This machine using a chain, enables a rubber wheel to move so this wheel enables the big wheel to move as well. Therefore, the rider sits inside the wheel.

Despite all the difficulties and challenges that we faced making this structure, it was still an incredible and exciting project to complete. The monowheels are very unstable in low speed but very stable in speeds over 30km. Concluding, the feeling that the driver gets while driving it is very unusual as we have never driven such a vehicle in our lives before. We are unbelievably happy making and owning a functional monowheel from now on.

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12 / 05 / 2018 | Videos

Make it Extreme's vibratory tumbler

Our need for removing the rust as well as the finishing touch in various little pieces which we use in our constructions led us to our new construction with the number 0082. This is a construction which constitutes a pot that vibrates, in which there are hard rocks in various sizes ranging from 0,2mm to 15mm and the pieces that we want to clean from the rust. 

While our construction vibrates, the pieces spin and move as a result the dust is removed. Initially, we cut an old, plastic filter from a pool and we shaped our pot. Next, we stabilised the pot on a metallic, circular flange of 40cm diameter. At the centre of the flange, we put a bearing. Then, we placed the flange on 6 springs, which are connected from their top surface with the flange and the pot attached to it and their bottom part is connected with another flange of the same size, which also has a bearing in its central point. Additionally, the final flange was welded on a metallic framework that we made by square tubes 20x20x2mm. 

The central point of the flanges is connected with an axis, which has a 2,7mm cam engine on its top surface. Therefore, when the axis spins the upper-sided flange and the pot with the items placed in it for cleaning are moved horizontally on the springs. 

Moreover, an electrical motor 1,25hp 4800rpm was attached to the axis with a belt regulating the volts that are provided to the motor and by a voltage regulator, we choose the spins that we give to the axis and to our pot.

In the end, we made an experimental effort putting various stones that we had collected and many rusty items and we activated our machine for two hours. The results were amazing. We couldn’t believe to our eyes as these items that we used were hard to be cleaned but they were totally clean a few hours later. The ‘Vibratory tumbler’ that we made is big enough as its pot can fit 100lt. We believe that using special stones and functioning it more, we will have even better results.

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28 / 04 / 2018 | Videos

Make it extreme's english wheel

This time’s creation is generally a simple machine in the field of metallurgy but it is necessary for processing aluminium and iron sheets. The particular machine is used to shape the metal sheets moulding the metal and shrinking some of its parts by pressing two metallic wheels. The making of this particular machine has not been generally changed for many years now. We mainly have a metallic shape like the letter ‘C’ which has two metallic wheels in its two sides. The wheel on the top is straight while the wheel at the bottom is called anvil wheel and it is chosen and changed according to the declination that we want to have on our sheet metal. 

To save money, we chose a difficult way of making our machine as we bended a metallic beam upn 16cm wide, 6.5 cm tall and 390 cm long in the shape of ‘C’. On the top surface of the ‘C’, we put a wheel made by stainless steel of 8cm width and 20cm diameter. 

On this wheel, we placed two ball bearings that enable the wheel to roll smoothly and comfortably. On the  bottom surface of the ‘C’, we made a basis, on which the anvil wheels are located and these wheels are going up and down supported by a screw that we made on the lathe and it spins with a wheel. This wheel regulates the pressure exerted on the metal sheet that we use to process between the two wheels. 

To conclude, our machine is 220cm tall and it can easily process even big pieces. Also, we put the ‘C’ on a stable basis in order to have a good and stable support avoiding any vibrations. It is with great pleasure that we made this machine as now, we are able to make pieces for machines, cars and generally many pieces that we could not make before having it. In this way, the structure with the number 0081 has been successfully completed.

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