Re: VERY BAD EXPERIENCE with 'bhwollen'
I have looked it over and it's a bit sad, Ben needs to take more time learning how to solder and just plain paying more attention to detail. I found where he soldered wires onto the driver and didn't get them all in the hole so there are loose strands floating around on the board so that they can come into contact with components. the laser diode had been cut from the remaining wire but no soldering was done by the buyer or his people, they only cut the one diode lead I am told.
This leaves the solder job you can see in my pictures.
The major screw up was he hooked the driver up backwards so it burned a resistor so bad it burned through the black heat shrink he had put around the driver :thinking: he had heat shrink for the driver but not for the diode leads :tinfoil:
then there is that pan head screw used for a set screw, I suspect it was not tightened well and the Aixiz module turned when the buyer tried to focus the laser. this would have caused the wires to short together (since there was no heat shrink covering them) and over load the driver with a direct short causing the excessive heat at the resistor.
The 445 laser diode is also dead, no light what so ever.
How did this ever operate in the first place I would like to know since the driver was backwards in the ckt.
This one get a big thumbs down in my book and I would say Ben should pay for this man's repairs, but I have no authority...
I'm wondering if we couldn't make it so people/noobs couldn't post till they have read the stickys, the ones about buying lasers from noobs :crackup:
here's the pic's>
First off we all know there was no heat shrink on the laser diodes pins.
You can see where the lead wire was clipped on the right side lead and where it broke from the left side lead.
The set screw is a pan head screw and I think maybe never got tightened down very well.
The first side of the driver.
The second side of the driver, you can see where the resistor got really hot, it burned through the heat shrink.
Look at the red lead coming from the pill, look where it is supposed to be soldered only about 1/2 the wires made it in the hole the rest are floating around on top of the ckt brd.
But take one more look the driver is hooked up backwards, go figure :tsk:
It got so hot you can see right through the heat shrink.
It's a sad day in laser ville...