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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