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Why do parts that passed inspection come back?
The drawing on the floor is not the revision the customer ordered
a walkthrough with stand-ins — a demonstration, not a finding · sealed
What significantly influences it
The same operator runs the same machine for years and nobody checks the settings
certified ·
12 yes · 3 no
Judged not to be linked
Quotes are won on price, so cycle times are cut to the bone
judged not to ·
1 yes · 14 no
Coolant is changed when it smells, not on a schedule
judged not to ·
1 yes · 12 no · 2 abstained
The oldest machine makes the tightest-tolerance part
judged not to ·
3 yes · 11 no · 1 abstained
Operators are paid on parts per hour
judged not to ·
5 yes · 22 no · 2 abstained · cross-group
Temperature in the shop swings fifteen degrees between morning and afternoon
judged not to ·
0 yes · 15 no
Rework is not counted anywhere
judged not to ·
2 yes · 12 no · 1 abstained
Batch traceability ends at the door
judged not to ·
2 yes · 13 no
The same operator runs the same machine for years and nobody checks the settings
judged not to ·
2 yes · 11 no · 2 abstained
Customers changed their inspection method and never told us
judged not to ·
3 yes · 12 no
Quotes are won on price, so cycle times are cut to the bone
judged not to ·
0 yes · 15 no
Coolant is changed when it smells, not on a schedule
judged not to ·
2 yes · 13 no
The oldest machine makes the tightest-tolerance part
judged not to ·
1 yes · 12 no · 2 abstained
Operators are paid on parts per hour
judged not to ·
3 yes · 12 no
Temperature in the shop swings fifteen degrees between morning and afternoon
judged not to ·
7 yes · 21 no · 1 abstained · cross-group
Rework is not counted anywhere
judged not to ·
1 yes · 14 no
Batch traceability ends at the door
judged not to ·
0 yes · 13 no · 2 abstained
Customers changed their inspection method and never told us
judged not to ·
1 yes · 14 no
A group’s judgement, not a measurement. Demo room.
On the atlas
.
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Link:
https://truecauses.org/c/9458191/fb7a4e5-drawing-floor-revision-customer
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