Tolerances have to be consistently tight when you're assembling wire harnesses for a jet fighter - 1/8 of an inch over 32 feet to be exact. An assembly workstation that can't accommodate such tolerances would be, well, intolerable. That's one of the problems that a jet aircraft manufacturer faced when they determined that they needed to upgrade their facility. Another problem was the ergonomic failings of their old system. They were using pieces of plywood on A-frames for the assembly of extremely elaborate wire harnesses. This not only affected tolerance levels but also led to potential technician stress, strain and fatigue.
展开▼
