Toolbox 2

Hi everybody,

before our holidays begin, I send you a last post about the wind turbine.
Fisrt, We 've painted the wood so that it resists the bad weather.

Our technician helped us a lot by puting it on a pole with a ball bearing for the rotation. He took the ball bearing from an old wheel of trash can!




Then we decided to fix the datalogger on the turbine to avoid the wires to roll around the pole. This way, the electric contact shall always be maintained. You can see the metal piece on wich we will fix the datalogger on the next two photos. We hope the weight of the datalogger won't be a problem ...

And we should install the wind turbine on the roof after our holidays, at the beginning of March.

I hope this can help you with your own installation,
ciao,
Emilie

Orientation of the solar Panel

Hi friends,

The orientation of the panel is very important for the project:the best orientation for all the school is not the same orientation.
It depends from the latitude and the season.

Here an interesting site with a lot of informations about the solution of the problem.
Please have a look and then we can decide the best orientation. our latitude is 45°N

http://www.macslab.com/optsolar.html

stefano italy

TOOLBOX

Hello everyone,

In a few days will be uploading videos and photos of the mechanical changes necessary for the wind turbine, will advance while the main things:

1) The generator must be perfectly aligned with the crankshaft (we have replaced the crankshaft with a exactly diameter (3 mm) and perfectly straight rod

2) the supports of the generator have been reversed so that the window-holes make it possible to precisely align the motor-generator shaft

3) the joint between generator shaft and propeller shaft were made on a lathe

4) we think to fix the propeller blades with small screws so that we can adjust the angle of incidence

5) we are thinking about how to achieve an efficient pivot for the rotation of the entire wind turbine, the problem is to ensure both: the rotation, and the electrical contact, we think it is better to prevented by a stop block the 360° rotation, so that electrical contact can be done with simple flexible wires
Then we will pass the first test in a wind tunnel ... ;-)

P.S. my English is almost perfect if you do not understand something is a google blame

Fabio from Italy

Blog management

A little proposal:
in order to avoid confusion on the blog I propose this use:
1. Start the different discussions with a post in the blog;
2. put a label in the post (ex. Youtube channel, meeting, thechnical problems…..)
3. use the comments to reply and contribuite to the discussion
4. when the comments are 20 somebody put a new post with the same label where we continue the discussion.

If we put the list of the labels on the right (under the “Blog archive) we can see all the post with the same label in a page and then find all the discussion.
What do you think? (comments on this post)

Stefano - Italy

Youtube Channel

Hi friends,

We created the channel, I sent you in a private mail the way to enter in it and upload videos. Here the first video from Italy.
We all are waiting for more videos!!!
ciao
Stefano - Italy

Meeting - first contact

dear friends, could confirm the data of the next meeting? In my book i wrote "meeting from 17th to 22nd of may" it's correct? and about pupils and teachers coming?
do you want to start the organization starting with dates an people?
have a good day.

Stefano from Italy

LOGO

Anybody is so artistic to propose a logo for the project?
Stefano