This is our drawing sheet with everything taken off it. The frame is the frame, the boxes are the boxes, and a shop looking at your page would look for exactly the same things it looks for on ours. Draw anything. A spoon, a chair, a spaceship. Then put a number on every edge of it.
Two boxes matter more than the rest. APPROVED has to be signed by somebody who is not you, because nobody checks their own work well. And REV moves one letter every time you change something, so nobody ever builds from an old page. That second one is the exact thing the airplane is waiting on right now.
The Lumber Outlet Group · Greenbush, Wisconsin · Est. 2018
When you have drawn it, take the measuring sheet and check whether the thing you built matches the numbers you wrote. That is the whole job, and it is the same two pieces of paper either way round.
That is the end of this one
The word for what you just did is revision control.
Every time a drawing changes, the letter in REV moves along and somebody writes down what changed. That letter is how a workshop knows it is holding the newest page and not last month's one. It is the exact thing the airplane sat waiting on.
Where to go now