3 ms·
history time for ppl who think this is rare: VW plant, making their top of the line model. solder arm robots have two air input hoses. one wide, high pressure
by gcb0 8y ago
history time for ppl who think this is rare:
VW plant, making their top of the line model. solder arm robots have two air input hoses. one wide, high pressure and slow response that is the "power". another nibler but fast response that is the actuator and only moves a small part that open/close the power valve.
the hoses were switched in one chassis line robot. causing the strong power line to simply hold the actuator always open. the small line was going to the " power" input, effectively controlling the soldering arm movement with the low power normally used only for the control valve.
it did solder the chassis. was it up to spec? hardly. did all the chasis went down the line without more than a visual inspection? yep.
- lovich 8y agoWere the two hoses keyed so that they couldn't be switched? If not, that could be sabotage but it could just as easily be human error. If you are relying on humans catching every mistake you are going to have mistakes happen. You need to make it so that it requires active effort to fuck up if you want avoid issues
- gcb0 8y agofrom what I recall in the history (heard from the husband of a college friend, he was the person that fixed the thing) the person who did the mixup went to a lot of trouble to fit the hoses in the wrong way.