27 / 01 / 2021 | Videos

Making a gear selector

Besides of an interesting structure, the project 0115 reminds us our childhood dreams that we did not manage to fulfil. The making of a gear selector system by pressing buttons from a motorcycle steering wheel is an exciting and interesting procedure. 

First, we started creating it by taking 2 starter solenoid from 2 broken starter motors. Then, we removed all the pieces of the solenoid that were unnecessary for our structure and we used only the coils that after they are 12vdc power supplied, they become powerful electromagnets. Next, we placed these electromagnets in an aluminum rods that we made on the lathe having 25mm distance the one from the other. 

The axis passes through the coils and it is moved forward and backward according to which electromagnet is activated each time. When there is no electricity in the coils, the axis is in the middle and it can be moved both forward and backward. Later, we connected the axis of our structure to the gear shift of the motorcycle. The rest of the structure was stabilized on the framework that we made to present the video. 

Our system is connected with two buttons. The one button increases the gear while the other one decreases it. This structure is not only interesting but it is also very useful as it enables us to change gears without being close to the machine. It is even useful to disabled people who cannot adjust the speed easily of their wheelchair.

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06 / 01 / 2021 | Videos

Making a tire vulcanizing machine

In this video we are presenting the making of an electric machine, called ‘vulcanizer’. This machine is used to repair punctures, weld two tires and in other tasks.

This machine is useful to us for making tires that we can’t find in the market and they need to be custom-made. For example, we needed such a machine to make a tire for the monowheel.

The welding is done by exerting pressure and heat on the surfaces that we want to weld. To achieve the temperature we need, we made two aluminum dies and we put elements taken from coffee machines in them. Also, to set the right temperature we placed thermostats at 160°c.

Finally, for exerting pressure on the tires, we put an air piston of 63mm. On the machine, we could place a timer switch and adjustable thermostats for a better performance of our machine. Although the construction with the number 0114 is ready and we are going to see it work in the following videos, very soon!!!

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