Where do you get instructions for lean mean contact roasting machine?

It seems you're asking about a "lean mean contact roasting machine." I'm not familiar with a machine that goes by that exact name. It's possible that:

* You have a different name or model in mind. Could you double-check the name of the machine?

* It's a specific type of roasting machine. "Contact roasting" describes a method where beans are heated in direct contact with a hot surface. Are you thinking of a specific type of contact roaster (like a drum roaster or a fluid bed roaster)?

* It's a slang term. Perhaps "lean mean contact roasting machine" is a nickname for a particular machine or process within the coffee roasting community.

To help me understand what you're looking for, please provide more details:

* What type of machine is it?

* What is its purpose? (e.g., for coffee roasting, nut roasting, etc.)

* Do you have any specific keywords or brand names associated with it?

Once I have more information, I can assist you with finding instructions or other relevant information.