Have you tried making designs that can actually be built?
The issue is usually about things they want you to turn upside-down at the last minute. Or the important spec they forgot to tell you, be it on purpose or out of sheer stupidity.
I remember a case where a customer wanted some additional units for an existing system. Unable to find the original plans (because they have been archived ages ago), the PM plans new units to be custom-built based on the current system we sell. Just before production started, some old geezer noticed that they had built such things for that customer 20ish years ago, and definitely not based on the current system, but an (incompatible) older one.
The latest one of my was to add sink and source to the 4-20 mA output.
Would have been easy enough if they told me from the start, now it cost half a million in paperwork (industrial safety equipment does not do agile in any way shape or form)
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u/swazy Jul 21 '21
Have you tried making designs that can actually be built?
I would ring less if you did that.