Week 23

Title : too heavy and tall

Objectives : to adjust the length and weight of the blade

Contents : i had measure and test my blade, but unfortunately, it is too heavy and long.. i need to make some alteration.. the blade cannot be like this.. if it continue like this, my turbine will not rotate in low wind..

 
Results : so what i had done is, i cut my blade into half.. that's mean that i cut the length and weight into half too..

Conclusion : this turbine still can rotate in low wind and very cute. hehe

Week 22

Title : testing again

Objectives : to test the final blade

Contents : after undergoing some cleaning process, i tested back my turbine to make sure that it can rotate.. and if not, i got enough time to adjust it back..

 
Results :

 

i try to make the turbine to stay at the bottom and the holder is at the top.. but the weight make it harder to turn with ease..

 

then i try to rotate it, make the holder to hold the whole turbine.. and it make some good results.. the turbine move faster than before..

Conclusion : i start developing the turbine based on new discovery today.. so i hope that there is no more changes to be made..

Week 21

Title : "Room Service"

Objectives : to clean-up the turbine

Contents : i go back to the welding shop to use their equipment.. my blade got some dirty things in it, so i went to use their air blower..

 
Results :

Conclusion : now my turbine is clean from all the dirt things.. it can rotate more faster than before.. yeay..

Week 20

Title : DC motor

Objectives : to choose the right DC motor to be used as the generator

Contents : everyday i search the internet to allow me to find the motor with higher voltage but low revolution per minute.. but my search returned to zero results.. if i wanted to use motor from remote car, it has low voltage with higher rpm.. it is not suitable for my project because i need high voltage with low rpm.. then i go to visit Jalan Pasar to find the motor.. but unfortunately, the seller does not know well about the motor, and plus, there is no label on the motor to indicate its characteristics..

 
Results : the best motor is magnetic tape drive which can be found in computer mainframe from era 80's from Ametek production.. but that motor hardly to be found nowadays.. i had search on mudah.my about that motor but it is sold out.. so, i had to choose other motor.. then i found an old printer in my house.. i decided to unscrew it and check the motor inside it..

after unscrew all the component, i had found out there is three motor inside one printer.. and all the motor operate in high voltage up to 12V but in a low revolution per minute..

the left one cannot be used because it had 4wires out of it.. besides, the turns of the motor also having stepped and that is not suitable for smoother rotation.. the right one operate in 12V and have low rpm.. i decided to use that one but unfortunately it is already not functioning.. so i got no other choices, i used the middle one.. 

i had mounted the smaller gearing system at the end of the motor, so that it can be connected to the gearing system attached to the turbine..

Conclusion : this motor can generate about 4V when i turn the motor with my fingers.. this is great.. i hope when everything complete, the voltage generated will be at least more than 5V and can light up a bulb..

Week 19

Title : Bearing

Objectives : to choose the suitable bearing to be used in my prototype

Contents : this is the most difficult part to be completed.. i need to find the bearing that smooth enough to hold the turbine, so that it can turns at low wind blow.. i had spent an amount of money which had same value as one KFC snack plate, to buy a pair of skateboard bearing.. but i had make a mistake.. the bearings are too small to be put on the rod of my turbine.. when the bearing cannot be done, i got stress for a while, thinking about the bearing.. then i decided to go back to the welding shop to ask about the bearing whether they have it or not, and if they do not have it, maybe they know where i can buy it.. i had my luck on that day, the welding shop had the bearing that i wanted.. he proposed me cradle bearing, which is more bigger than the skateboard bearing.. and the bearing is smooth, i like it..

 
Results :

the bearing got many sizes and smoothness.. i decided to choose the smoothest one.. i will welding the bearing on the top of my rod to hold the turbine.. but what worried me mostly is can the turbine rotate with this bearing.. i need to finish my prototype completely for me to test my turbine..


Conclusion : i hope that with the choose of the cradle bearing, i had made a right choice in my life.. hopefully, the bearing can function as i wanted it to..

Week 18

Title : Gearing System

Objectives : To make the rotation of the motor more faster than the turbine

Contents : I wanted to make my output voltage higher than anyone expected.. therefore, i need to come out with a solution to make sure that this can be happened.. i had been thinking about the bicycle system, how when we cycling the bicycle, it can move faster although we cycle it slowly.. then i decided to buy a small and large sprocket to be attached to my turbine.. but something crossed my mind.. if i used the bicycle sprocket, it might give some weight to my prototype.. therefore, i need to think something else but have the same function as the sprocket.

 
Results : after asking an opinion from my friends, i got a new solution to it.. why don't i used a timing belt instead of the sprocket.. the timing belt is more light than the sprocket and have the same function.. 

i mounted the timing belt gear at the rod attached to my turbine..

and the belt is also suitable to be put on it.. therefore, i will stick with this decision..


Conclusion : the turbine is almost complete with the gearing system.. when the turbine move, the motor will move twice of the rotational of the turbine.. and when this happen, the output voltage also will be twice from without gearing system..

Week 17

Title : Horizontal Turbine

Objectives : To test the rotational of horizontal turbine

Contents : while i keep thinking about what to be used for my project, and what design should i made, i find a good component to be used as my blade.. i got this idea when i see my neighbor cleaned up his air-conditioner system.. i see a rotational blade inside it and i decided to go to the secondhand shop to get one for my project..

this turbine got a narrow gap between its blade and hopefully it can trapped air with full power.. but the most difficult task is to broke it down.. i need to unscrew all the screw but i got less equipment to do so.. therefore, i decided to go to the welding shop to borrow their equipment..

Results : after finished unscrew the parts, i got that turbine and this is how it looks like..

but, i got another task to do.. the base for the turbine need some alteration.. luckily i am at the welding shop, so i ask the worker to help me to alter it back.. and the worker also put a rod at the middle of the turbine to hold it.. thanks for helping me dude..

Conclusion : i think i will stick with this turbine and will make the turbine spin with ease in a slow wind.. please pray for me..