1.A) For this operation, a loop operation using the diagram as shown in Figure 1 is proposed. Arrange the lathes, machine, drill, and grinder to minimize the flow for the loop conveyor.

L = Lathe

M1 = Machine Type 1

M2 = Machine Type 2

D = Drilling Machine

G = Grinding Machine

1.B) If you are allowed to buy one more machine (i.e. machine duplication), which machine would you like to buy and why? What will be the new layout?

\begin{tabular}{|c|c|c|} \hline Product & Volume & Sequence \\ \hline A & 800 & L-D-G \\ \hline B & 1200 & L-M1-G-M2 \\ \hline C & 3700 & D-L-M1-G \\ \hline D & 1500 & D-M1-L-G \\ \hline E & 900 & D-M1-G-L-G \\ \hline F & 2200 & M1-G-L-D \\ \hline G & 1400 & D-M1-L-M1-G \\ \hline \end{tabular}