14 / 09 / 2018 | Videos

Making a track drive trike (Part 2)


The second part of the construction 0086 was a pleasant procedure to have as the biggest part of this construction had been already completed during the first part of making it. At the second part of the construction, we had some improvements and we perfected our vehicle.

Initially, we changed the front wheels which are double in size than the previous ones and are ideal for irregular grounds. We placed disc brakes on them, which are activated on both wheels at the same time. Having these particular modifications on our vehicle, it became taller and now it is more capable of overcoming bigger obstacles on its way. Also, we regulated the central spring of the construction to be softer in order to absorb better the level of the volume of vibrations.

Changing the motor in such a construction was also an essential thing to do, as it was 50cc and now it became 250cc. The benefit we got from this change was that of having 5 gears. Therefore, now we can use the proper speed according to the ground our vehicle is used on and the power that is required to do so. Another advantage was that one of the gears goes backwards so the vehicle can be easily released in case it is trapped in narrow spaces where it cannot easily fit.

We also changed the chain of the move transmission to a thicker one in order to be more tolerant to the high powers of the machine. Additionally, at the crawler we applied some metallic pieces to avoid the contact between the crawler’s screws with the ground and to increase the adhesion on the mud. Then, we moved the spaces where we place our legs and feet in the vehicle to make it more comfortable and we empowered the steering wheel to be more tolerant.

Finally, we changed the springs of the crawler in order to achieve bigger openings whenever it passes over stairs and big stones. The experience making this construction was unbelievable and it will remain unforgettable in our memory.

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26 / 08 / 2018 | Videos

Making a track drive trike (Part 1)



The crawlers are vehicles that have always attracted us as they are more uncommon compared to the usual ones that they use wheels. They are usually used by vehicles on the ground as they have a large contact surface with it and they have the potential to be tolerable in hardships. However, there are some drawbacks as their heavy weight, their high cost and some other.
Therefore, we decided to combine the wheels with the crawlers and connect them on our motorcar. So, we took the decision to make a vehicle, which at its back side would have a crawler and at the front would have two wheels.

Initially, we cut the gears, on which the metallic crawler spins. On its side we put a gear, from which the machine moves it. We shaped our framework by taking a tube of 50mm. The crawler was connected on the framework in such a way to Have the ability to be moved up and down when it meets obstacles on its way like stones and other things. To avoid swishing and to control this move responsibly, we had two springs connecting the framework and the Crawler.

The framework that we made is constituted by two pieces that are connected in the middle and they can be moved up and down. This move is limited with the help of an adjustable spring which allows a small move so the vehicle will be able to absorb all the swishes caused by the obstacles arisen. The front wheels were placed in their between width 90cm and they also have their own springs so they can be moved independently the one from the other. This gives the opportunity to the vehicle to have a good hold on an irregular ground and keep a good hold in steep hinges.

We placed our steering wheel that turns the two front wheels to the direction we want. Also, we used a machine from a scooter 50cc even if we knew that the machine was weak to move the heavy weight of our vehicle easily. Finally, we are very pleased from the first trials we had. That was the primary phase of the vehicle and we are very happy from the outcome of our construction. To sum up, our vehicle will be completed on the next video, when we are going to choose bigger wheels and motor and in general our construction will be finished.

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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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