In addition to the original plan, the planner also has to know how to lap the lace, set the needle to make them hinder the other needles, make the cut edge tidy, connection and fan-shaped trimming, lock the needle and so on. And he also has to make sure that he doesn't print beyond the specified range, that all the colors are appropriate, that the threads on the typesetter are worn, and that he's ready for the typesetting.
But one of the most important is the proofing machine. Spread the right fabric on the machine and wear the right line (including color), which is the foundation for the printer to complete the task. Most mechanical machines are equipped with 1 yards of proofing machines, and even some of them have a single needle proofing machine.