How often have you cut a board, a piece of material, or even wrapping paper, and guess what? You come up Short Agh! We’ll there may be a few factors in not effectively measuring the material. It can be any of the following: 1) Your measurement system or rule is not accurate enough for the material you measuring. 2) You need to measure in Milimeters and not inches. 3) You don’t have repeatable measurements, and have too much variance in your system.
If number 3 is the case for repeatability, we would suggest a Gage R&R study, and an Ops Ala Carte Consultant can help you here.
Per the 2nd cause, in my recent experience with a Supplier Quality Issue, the manufacturing tech. measured a hi-tech German Cable for medical applications, and found that a couple of pigtail lengths wire were out-of-spec!
We’ll this is an expensive error found, as the whole cable assembly would have to be shipped back to Germany to
Instead, I Measure the assembly pig tails of the cable the Second Time in mm, and guess what, they all were within spec. +/- 1 mm.
So, measure twice, at least, it will save you money, time, and your company will be more productive with less rejects.
Greg Swartz, CQE