I was wondering if anyone had instrustions on how to build an production box.

Homer, there are so many, which type of production box are you looking for? Are you wanting to produce an object? a person? an animal?

I'll have to check thru my files and see.

~Sam 8-)

I would like to produce objects and animals maybe after i have the basic instructions or the mekentics of the trick than i could personalize the design.

Many magic stores sell a basic cardboard version for $10 to $15. You can pick one of those up and study it. It strikes me that it should not be difficult to reproduce according to your needs as long as you pay attention to why it is designed the way it is.