Thank you very much for your help....

But there is one problem..I am a poor student from a poor country and I don´t think I could pay 25 dollars so easily.

Here is the situation.I am a chilean student on my 5fth year of mechanic engineering...and I have to design a vibrating screen banana type.I have to draw and calculate everything...but I don´t have much idea about how to start...so I would appreciate any info free available on the internet you could send me.

For example I would like to know where I can find the values that the vsma has for the following parameters on this formula:

Area (ft2)=flow/(C*M*K*Q1*Q2*Q3*Q4*Q5)

C=FACTOR RELATED WITH THE WIDTH OF THE HOLES ON THE SCREEN

M=FACTOR RELATED WITH THE % OF THE MATERIAL BIGGER THAN THE HOLES

K=FACTOR RELATED WITH THE % OF THE MATERIAL WICH HAS THE SIZE OF THE HOLES FROM THE FIRST SCREEN

Q1=FACTOR RELATED WITH VOLUMETRIC DENSITY

Q2=FACTOR RELATED WITH THE KIND OF OPENING

Q3=FACTOR RELATED WITH THE SHAPE OF THE PARTICLE

Q4=FACTOR RELATED WITH THE SIZE OF OPENING

Q5=FACTOR RELATED WITH THE SUPERFICIAL MOISTURE

Please please...if you have files or any thing with planes, charts , etc...send it all to calvondy@yahoo.com

Thanks

Ps:

I beg you excuse my english....i did my best

Thanks ■