The $1,750 Cut
A real job, a real forum thread, a real number. This is the case Drawrev is being built around.
- Material scrapped on the wrong revision
- $1,750
- Parts run and rejected
- 50
- Replies on the thread that followed
- 64
Material scrapped on the wrong revision
Parts run and rejected
Replies on the thread that followed
What happened
In October 2019, a machinist posted a thread on Practical Machinist, a large public forum for the trade, describing a job that had just gone wrong. An end customer revised a drawing after the parts were already out for quoting and cutting. Nobody told the shop that ran the job. The shop delivered fifty parts built to the drawing it had on file, the old revision, and the customer rejected all fifty on delivery.
In the original poster's own words: "the end customer changed the drawing with an updated revision AFTER they sent the parts out to get made. They never told our customer and they never told us... So he comes in picks up 50 of the latest parts brings them to the customer and they reject them."
What it actually cost
The thread's title asked who should pay. Page two has the number, from the same shop owner: "Were talking 1750 in material about 3 days of waterjet time and about a week of spindle time." Three days of waterjet time and a week of spindle time, gone, plus the material itself, because nothing caught the mismatch before the parts were cut.
Sixty-four replies followed. Read the thread yourself: Custom sent wrong drawing, who should pay, practicalmachinist.com, started by user tjd10684.
Why this is not a one-off
Revisions travel by plain email, buried in a thread with everything else a shop gets that week. A job-shop ERP versions the documents it already has, it does not watch an inbox for a new one. A PLM seat with an OEM would catch this, but a lot of shops that get drawings by mail do not have one with every customer they run parts for. The gap between those two things is exactly where the thread above happened, and it is not particular to one shop or one customer.
What Drawrev is built to do about it
Drawrev is not live. It is being built to watch the inbox where a shop's drawings already arrive, read the part number and revision letter off what comes in, and flag it the moment a revision does not match the active job list, before the file reaches the floor, not after the parts come back.
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