Session 7 · Hour 1 · Line, circle, arc

1. Hour 1Line, circle, arc
2. Hour 2Window is a box
3. Hour 3Undo is a time machine
4. Hour 4Check. Then the file may leave

CheckDraw a bracket. Window-select the hole. Crossing-select a stiffener. Erase a spare. Undo. Save. Undo is not erase. Erase without a look is a missing hull.