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Old 11-24-2011, 11:27 PM #1
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Default I broke my damn Flexdrive. Can someone ID a component for me?

I was working on a build, and I managed to bollocks up my FlexDrive. I hooked it up to the test load one last time, and I got nothing from it. Upon inspection, I noticed one of the components (as well as part of the trace for it ) was missing.

I've exposed the rest of the trace and I'm pretty sure I can solder the whatsit back down if I can find a replacement. Can anyone help me out with identification? I think it might be a cap from what I've read, but that's just a guess. See the attached pic for details. The one circled in red is missing.

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I broke my damn Flexdrive. Can someone ID a component for me?-mfd.jpg  


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Old 11-25-2011, 06:35 AM #2
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Default Re: I broke my damn Flexdrive. Can someone ID a component for me?

It is a capacitor, but I have no clue what resistance and wattage it would be.
Sorry I couldn't be of more help.
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Old 11-25-2011, 10:29 AM #3
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Default Re: I broke my damn Flexdrive. Can someone ID a component for me?

hmm. Yes, either a damn capacitor or a damn resistor; i'm actually banking on damn resistor. Definitely one of the two - finding the value is the issue.

I'm wondering if anyone else here may have a picture of a damn flexdrive that actually has value markings on the damn components; as far as I know, some of them have?

In all serousness, it should be repairable, actually. I'm kind of surprised there aren't any markings on the SMT component there but, that may be to keep the damn thing from being cloned, heh.
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Old 11-25-2011, 10:35 AM #4
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Default Re: I broke my damn Flexdrive. Can someone ID a component for me?

I think it is a capacitor. The resistors looks like the black ones and they have numbers on it. The missing one is just blank. I would try the value as in the LM317 DIY driver.

Or someone have to desolder his own flexdrive and measure the capacity.
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Old 11-25-2011, 10:49 AM #5
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Default Re: I broke my damn Flexdrive. Can someone ID a component for me?

I'd go with Capacitor as well... Normally resistors are identified
with some type of marking and are usually black in color while
ceramic capacitors are generally that caramel color without markings.

Are you sure the problem is that part ?? How did it come off...
They are soldered in place and require quite a bit of heat or
great mechanical stress to remove....


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Old 11-25-2011, 12:48 PM #6
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Default Re: I broke my damn Flexdrive. Can someone ID a component for me?

Quote:
Originally Posted by lasersbee View Post

Are you sure the problem is that part ?? How did it come off...
They are soldered in place and require quite a bit of heat or
great mechanical stress to remove....


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I honestly don't know how I lost that part. Suffice it to say, I wasn't being super-extra-careful with it. Maybe it got scraped off with an alligator clip, or it might have happened when I dropped it. Also, this particular driver has been reset, soldered, and de-soldered at least a half-dozen times, so maybe it's time had come.

I would like to salvage it, though. I had it pumping out over 1.6A before I broke it, and I really want to see that run through a blue diode. . .

Thanks for the replies thus far, folks
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Old 11-25-2011, 01:01 PM #7
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Default Re: I broke my damn Flexdrive. Can someone ID a component for me?

I'm surprised that you didn't have problems with the pot.
When flex's are reset sometimes more than once, the knob has a tendency of falling off.

Someone has to have a junk flex laying somewhere that they can measure the cap...
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Would you like to purchase some M-140 445nm diodes (individual or pressed into Aixiz or pure copper module) at very reasonable prices? PM me if you are interested!

My laser list has become way too big; I'm listing some of my favorites out of my extensive collection.
615mw 405nm/12X Spiderfire X-03
148mw 405nm/GGW in my "Hotlight-Saber" host
1920mw 445nm River Rock custom
1530mw 445nm Yobresal
1360mw 445nm Qumefox Sipik
800mw 445nm WL Arctic Spyder S3
240mw 473nm CNI Labby
8mw 473nm CNI Labby
528mw 532nm Lazerer Cannon
310mw 532nm Firedragon III
300mw 532nm CNI Labby
180mw 532nm SKY Laser
4x 147-267mw 532nm Waterproof
900mw 635nm in Temporary Finned Labby Sink
Several 635nm diodes awaiting a build
500mw 650nm Dual LPC-826 Labby
251mw 650nm/LPC-815 Ultrafire U-501B
Several 685nm diodes awaiting a build
3W 808nm diode awaiting build

Kenometer w/ Coherent Thermopile 10W
LaserBee 2.5W USB LPM
Radiant Alpha 2W LPMSOLD=Now in Kuwait!
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Old 11-25-2011, 01:38 PM #8
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Default Re: I broke my damn Flexdrive. Can someone ID a component for me?

If in doubt, email Dr. Lava and ask him what it is. He is very helpful in those matters and you can probably just find a replacement part online if needed.

You can also just measure the value and see what it is. A capacitor will block current so you'll know immediately what it is.
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Old 11-28-2011, 05:22 PM #9
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Default Re: I broke my damn Flexdrive. Can someone ID a component for me?

filter cap is my guess. Looks like it is connected to the ground plane maybe?
I bet it is a factor of 47
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