The main thing that a lot of people forget or discount is general handling time. It's like when they are driving a forklift or walking around the workbench they don't count that as non-value added time, which is a big differentiator between Batch and Single-Piece Flow work. You did a great job showing the contrast here.
18% faster with one piece flow vs. only a small 3 piece batch. Imagine how this scales with larger batches. Economies of flow not economies of scale! (Unless you have very cheap labour, little concern for right first time, and customers who are prepared to wait; um no.)
The main thing that a lot of people forget or discount is general handling time. It's like when they are driving a forklift or walking around the workbench they don't count that as non-value added time, which is a big differentiator between Batch and Single-Piece Flow work. You did a great job showing the contrast here.
18% faster with one piece flow vs. only a small 3 piece batch. Imagine how this scales with larger batches. Economies of flow not economies of scale! (Unless you have very cheap labour, little concern for right first time, and customers who are prepared to wait; um no.)