Re: FS: custom lasers $240.00
Traveller said:
[quote author=WannaBurn link=1240004725/32#53 date=1240158794]Tampering before or after the laser stops working makes no difference. How is the seller supposed to know when it took place? You open it, you own it, period.
I played part in a similar experience recently where a BR I received (in perfect working condition) went "LED" soon after I got it. Being used to cheesy Chinese LED flashlight hosts and their tendency to have poor contact between the housing parts lead me to unscrew, visually inspect and re-screw the host parts, just to make sure it wasn't a contact problem. Since I had the host open, I took the opportunity to photograph the internal components.
I of course informed the builder that I had unscrewed / re-screwed the host to verify contact-quality. He didn't seemed surprised (or upset) and it didn't occur to me that it would be a problem to unscrew the host... .
Being the nice guy that he is, he replaced the diode for free (
) and even paid for registered shipping (
). Being the the nice guy that I am, I paid for half of the costs anyways (
).
But, getting back to the point at hand, you are suggesting that I broke the rules by opening the host; but don't you think a respectable buyer is responsible enough to carefully check for good contact w/o breaking something? What would you have suggested?
[/quote]
If you want warranty work, you return it untouched.. There are too many times where tampering is the cause of failure, and if you open it there is no way to prove otherwise.
Depending on the laser in question and its points of access, would be different for your case vs something that I may sell. If your laser stops working, you should first talk to the seller. If he has no problem with it, than fine. You could just as easily test the current draw between the battery and host. If the driver is pulling current at full value then chances are the diode is dead.
If I get a return with obvious signs of tampering, why should I cover the cost? If I sell a laser to someone, and by chance it stops working completely, I would expect an email and would guide them through a simple test with a DMM. If they do not have a DMM, than ship it back untouched. If the fault is found to be on my end, I would have no problem with covering the costs of shipping, parts and labour, and have covered these costs in the past.
If there are signs of tampering however, how do I know that this wasnt the cause? When I sell anything, 98% of the time it is to absolute strangers. This being the case, I trust none of them..
I had a buyer on ebay contact me last week as an example.. He purchased a module from me and all was fine. 2 weeks after the purchase he sends me an email stating that out of nowhere the laser "started to dim, then it popped releasing a puff of smoke".
This particular module uses 2 tantalum caps and an lm317. Now out of 100 or so of these that ive sold, in the exact same config, this was the first time I had this type of complaint. Also I test all of these before shipping anything.
So he sends me pic's of the internals, which I have no problem with as I sell these as bare DIY modules. Well in the pic, the tant. cap on the input was completely blown apart and the board was black :-?
This of course is impossible in the fashion he described the incident.. To do this would have required reversing the polarity, and from a source with decent current.
So now my thoughts.. He gave the module more than the recomended voltage, blew the diode, and in a lame attempt tried to cover his tracks by roasting the board
To top it off, tried to blame my board..And because im not an a$$, im still going to fix it for free. I simply told him that reversing the polarity would not be covered a second time. To which he did not insist that the diode just "blew up" during normal operation... Wonder why..
I have had other buyers screw up and push the diodes with too much voltage which ups the current, but were honest... It just sucks having to decipher who is lying and who is not.
I sell to make money, not to pay for other peoples mistakes. This is why I say, if it breaks, just send it back and let me determine why it failed, if not dont be surprised if you have to foot the bill