Ok!!! Finally I have the solution!!!
After lot of tries and lot of mistakes, I found the reason of the reflection in the render, it is because the normals in the lid of the model, that have the transparency, it need another face inwards pointing to the inside of the model, if it is not present it ...

Sorry, I had not read your second answer, I had not updated the page until I answered.

LOL! The pages that you indicate to me are exactly the ones that guided me! But I get lost with the properties of specular, diffuse, environment ... I end up with a lot of other webs open looking for meanings and ...

Hi Dorin!

Finally i have time to try this, the first MTL gives high reflection, near a mirror thing, but the second works ok!!!
Thanks a lot!!

With experiments I've concluded that the refraction parameter is "NI", with a very bright 10.0 value for the material, but with 1.0 is perfect, the exact ...

Thanks a lot Dorin!

I try this tomorrow!

Still confused with the Ka, Kd, Ks, Ns, Ni.... parameters, don't find a clear explanation about this without enter in a nightmare of terms and different webs...

Tomorrow I try and tell.

Sorry for my english.

Thanks again!

No luck?

Hi all!

I've created a model in Sketchup of a turntable that i have, it has the cover made of brown clear plastic.

Exported from SU to .dae, imported in SH3D, first time i've get this result in render on the 3Q :

http://www.mediafire.com/convkey/70e9/2e6sndpw97zvimk6g.jpg

I've get this ...