Most quality escapes do not come from a bad machine; they come from a good machine making the previous revision. Controlling revisions is unglamorous and it prevents real damage.
If a revision is missed, parts get made correctly to a drawing nobody wants. The cost is a full batch, a rework loop and a schedule slip — all avoidable with a version check that takes seconds.
Each order is tied to a specific drawing revision. Incoming revisions are logged, the shop floor works from the released version, and any open question about a change is raised to you before cutting rather than after.
Send the revised drawing and we confirm what changed, what it costs and what happens to parts already in progress — so a design improvement does not become a supply surprise.