6. A furniture manufacturer makes a bookcase from two end panels, four shelves, fasteners, and hangers. The end panels and shelves have the following data:

End Panel Operation Machine Run Time Setup Time 1 Saw 5 minutes 0.6 hour 2 Planer 3 minutes 0.3 hour 3 Router 4 minutes 0.8 hour Shelf Operation Machine Run Time Setup Time 1 Saw 4 minutes 0.5 hour 2 Molder 5 minutes 1.3 hours 3 Router 5 minutes 0.7 hour 4 Sander 1 minute 0.1 hour The master schedule for the next three weeks is 35, 50, and 40 bookcases, respectively. Each MPS quantity requires a setup.

a. What is the total number of hours required on each of the five machine centers for each week?

b. If each of the two parts is started into production one week (five days) before needed in assembly, and it takes one day per operation, generate the week-by-week load on the routing machine.