Is zero scrap possible?

Yes, zero scrap is possible by applying jidoka. Large reductions can be achieved at the start. In time you can succeed in producing with no scrap at all for a day. And the number of days on which you can produce with zero scrap will grow. Do not compromise on the basic rules, and remember that scrap is like a parasite that eats away at our company and at us, and it has to be removed.