A large component does not start at the spindle. At DHANRAJ Engineering the order starts with the drawing: material, geometry, and the tolerance the part has to meet.
Fixture planning comes next, because a heavy part that moves in the setup will not hold size. CNC programming on the Fanuc 18i-MB follows that plan. Machining, inspection against the drawing, and documented dispatch close the job.
The sequence does not change with the size of the order. Drawing study, fixture planning, CNC programming, machining, inspection, documented dispatch. That is the process a quotation is based on.