John-E-Mac
1431
It is a conflict of humans and machines, combined with company policy.
Dec 15, 2020,05:08 AM
Humans are taught to trust the QC system, so if it gets to them later in the process, then it must be "good". By the time it gets to the polisher, they assume all the prior checks have deemed the part as "pass". Same for the assembler.
Vision systems have to be programmed to measure features and have defined tolerances (straightness, perpendicularity, parallelism, etc.). The "straightness" of that edge is probably not defined or measured in their QC system. They probably only measure if the correct amount of material is removed (min/max).
Perfection has a cost. Imperfection has a cost. Finding an acceptable balance is a must in order to ship product to generate revenue. I've witnessed QA shut down production only to be over-ruled and product shipped.
I wouldn't be surprised that this defect was discussed at JLC and determined to "pass". There is probably a commensurate CAR (Corrective Action Report) floating around JLC.
In the end, the buyer is the final QC inspector. Good eye!
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Calling all Reverso owners!
By: TheWindingStem : December 12th, 2020-17:52
Hello! I have come to notice clamping marks on a few Reversos and was wondering how common it is? It’s present on the burgundy in the same exact spot but on opposite sides (6:30 and 12:10). Haven't seen that on my Blue tribute though. It is visible withou...
I returned my Duoface...
By: myles721 : December 12th, 2020-18:31
A number of imperfections and a movement that never functioned properly. 1000 hours of scrutiny...please!🙄
Good to know!
By: TheWindingStem : December 13th, 2020-08:21
so far my observation is pointing to the fact that this is overwhelmingly an issue with burgundy Reverso's sold in North America.
Very surprising indeed.
By: TheWindingStem : December 13th, 2020-08:22
I am very disappointed and im hoping the company will track the flaws down to the individual uncharge and retrain them. Also, their QC department needs a new loupe lol
Strange!
By: amanico : December 12th, 2020-22:14
Hand crafted
By: Weems@8 : December 12th, 2020-23:12
Made by hand. My trust in JLC is not gone. Return to AD and get another one without case failure.
give me a break...
By: 2redbulls : December 14th, 2020-23:06
haha...come on. "ruins the symmetry and beauty of the ENTIRE DESIGN". You're really laying it on thick.
human flaws are beautiful and acceptable.
By: TheWindingStem : December 13th, 2020-08:40
Major flaws resulted by laziness or incompetence is not acceptable and shouldn't be tolerated. Also, you don't need s loupe to see this.
Good news!
By: amanico : December 15th, 2020-04:10
I suspect damaged tooling used to fab the part...
By: John-E-Mac : December 13th, 2020-15:34
Both end pieces have identical defects. Probably made in the same batch. Fairly easy to remedy (re-machine or file smooth) before it left the factory. Since those end pieces bolt onto the main base plate, they are easily swapped out in the field. Should b...
It is a conflict of humans and machines, combined with company policy.
By: John-E-Mac : December 15th, 2020-05:08
Humans are taught to trust the QC system, so if it gets to them later in the process, then it must be "good". By the time it gets to the polisher, they assume all the prior checks have deemed the part as "pass". Same for the assembler. Vision systems have...
Pfff! Poor QC out CNC machined production...
By: PoyFR : December 14th, 2020-03:04
Poor QC out CNC machined production. What was once seen and felt by watchmakers is sometimes left to unsupervised or badly QCed CNC machined production. I find this totally inacceptable!
I don't mind CNC.
By: TheWindingStem : December 15th, 2020-03:31
its quality control that needs to get their act together!
Agreed...
By: amanico : December 15th, 2020-04:11
This is correct!
By: Ambos : December 27th, 2020-06:57
This is part of the finish. The two ‘front’ sides always have these straight brush finish. This is absolutely correct. Enjoy your Reverso!