Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > Tutorials, Help & Repairs



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 03-25-2010, 03:34 PM #17
KiLLrB's Avatar
Class 3R Laser
 
Join Date: Jan 2010
Location: Lubbock, TX USA
Posts: 1,097
Rep Power: 49
KiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond repute
Send a message via MSN to KiLLrB Send a message via Yahoo to KiLLrB
KiLLrB KiLLrB is offline
Class 3R Laser
KiLLrB's Avatar
 
Join Date: Jan 2010
Location: Lubbock, TX USA
Posts: 1,097
Rep Power: 49
KiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond repute
Send a message via MSN to KiLLrB Send a message via Yahoo to KiLLrB
Default Re: problem with flexdrive??

an inductor is a wire around a ferric core right... So a coil of wire wrapped around it pulsing with current will make it vibrate. Kinda the same principal as a speaker. I know for a fact some video cars will squeel and it is due to the chokes in the power circuit.

Here is a case of it here. NO MORE GTX 280 SQUEALING! Nvidia’s “Deadly” Flaw and How To Fix It - Nvidia - Graphic-Displays


__________________
3 keychain <5mW red lasers
2 ~5mW HeNe (632.8) See my HeNe Disassembly tut HERE
BluRay Laser Pointer
1W+ 445 by Yobresal LINK
sold* OPTO +150mW Green Laser pointer Review Here

FS: Custom circuits and test loads


Quote:
Originally Posted by nikokapo View Post
"Does this rag smell like chloroform to you?"
KiLLrB is offline   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 03-25-2010, 03:40 PM #18
Eudaimonium's Avatar
Class 4 Laser
 
Join Date: Feb 2008
Location: Pitomača, Croatia
Posts: 6,295
Rep Power: 427
Eudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond repute
Send a message via Skype™ to Eudaimonium
Eudaimonium Eudaimonium is offline
Class 4 Laser
Eudaimonium's Avatar
 
Join Date: Feb 2008
Location: Pitomača, Croatia
Posts: 6,295
Rep Power: 427
Eudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond repute
Send a message via Skype™ to Eudaimonium
Default Re: problem with flexdrive??

Quote:
Originally Posted by KiLLrB View Post
an inductor is a wire around a ferric core right... So a coil of wire wrapped around it pulsing with current will make it vibrate. Kinda the same principal as a speaker. I know for a fact some video cars will squeel and it is due to the chokes in the power circuit.

Here is a case of it here. NO MORE GTX 280 SQUEALING! Nvidia’s “Deadly” Flaw and How To Fix It - Nvidia - Graphic-Displays
Hmm, good explanation,
I just figured it would be nicely fixiated so it would not vibrate.

Looks like it depends on quality of the coil... and Nvidia is not making a name for itself right now...
__________________
Accepting and
^Click to enter^

The "Where to get laser components" big compilation thread!

Are you new and need help? Instead of starting new threads, shoot me a Personal Message! I'll answer all the beginner's and advanced questions you might have!

Eudaimonium is offline   Reply With Quote
Old 03-25-2010, 04:27 PM #19
HIMNL9's Avatar
Class 4 Laser
 
Join Date: May 2009
Location: Lost somewhere in the EU mess ;)
Posts: 5,416
Rep Power: 404
HIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond repute
HIMNL9 HIMNL9 is offline
Class 4 Laser
HIMNL9's Avatar
 
Join Date: May 2009
Location: Lost somewhere in the EU mess ;)
Posts: 5,416
Rep Power: 404
HIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond repute
Default Re: problem with flexdrive??

In this case, we're speaking of a big difference in frequency ..... 1,6MHz for the normal working frequency, and some KHz for the resonance ..... this resonance can be caused from a broken inductor, but also can be caused from defective working cycle of the switching too (the driver don't have 500 or 1000 uF of output capacitor like the big switching circuits, and as current-regulating laser driver is also working in a non-normal configuration, after all, so, yes, it can happen)
__________________
High Impulse Multipath Neutron Laser (mark 9 ) (LOL)
Dare mo mita koto no nai, kaze, kumo, suna, umi ..... Kokoro no hate no doko ka eien ga kagayaku.
HIMNL9 is offline   Reply With Quote
Old 03-25-2010, 04:36 PM #20
Eudaimonium's Avatar
Class 4 Laser
 
Join Date: Feb 2008
Location: Pitomača, Croatia
Posts: 6,295
Rep Power: 427
Eudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond repute
Send a message via Skype™ to Eudaimonium
Eudaimonium Eudaimonium is offline
Class 4 Laser
Eudaimonium's Avatar
 
Join Date: Feb 2008
Location: Pitomača, Croatia
Posts: 6,295
Rep Power: 427
Eudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond reputeEudaimonium has a reputation beyond repute
Send a message via Skype™ to Eudaimonium
Default Re: problem with flexdrive??

Quote:
Originally Posted by HIMNL9 View Post
In this case, we're speaking of a big difference in frequency ..... 1,6MHz for the normal working frequency, and some KHz for the resonance ..... this resonance can be caused from a broken inductor, but also can be caused from defective working cycle of the switching too (the driver don't have 500 or 1000 uF of output capacitor like the big switching circuits, and as current-regulating laser driver is also working in a non-normal configuration, after all, so, yes, it can happen)
My LM3410X has 1.6 MHz, but
10uF input
10uF schottky output
20uF diode output capacitance.

No sound what-so-ever.

And what about the chargers?
__________________
Accepting and
^Click to enter^

The "Where to get laser components" big compilation thread!

Are you new and need help? Instead of starting new threads, shoot me a Personal Message! I'll answer all the beginner's and advanced questions you might have!

Eudaimonium is offline   Reply With Quote
Old 03-25-2010, 04:44 PM #21
laserboystuart's Avatar
Class 2M Laser
 
Join Date: Jan 2010
Location: birmingham, UK
Posts: 705
Rep Power: 22
laserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud of
laserboystuart laserboystuart is offline
Class 2M Laser
laserboystuart's Avatar
 
Join Date: Jan 2010
Location: birmingham, UK
Posts: 705
Rep Power: 22
laserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud of
Default Re: problem with flexdrive??

its the 18650 kit from jayrob, ive heard of the flexdrive making weird noises though.
it might be because the flex was momentarily operated without anything on it when the diode leads came loose from the driver leads. just a thought though.

btw it wouldnt be because of high current as its set to 380mA.

stuart
__________________
445nm jayrob 18650 @ 900mA 946mW---->Sold... Review Here!
Rayfoss Waterproof 150mW greenie------->Returned
LOC red 210mW------------------------->Sold... Review here!

PM MORGAN FOR HIGH QUALITY LASER BUILDS HERE


Quote:
Originally Posted by AAlasers View Post
Also, would a crap-load of evenly-wound aluminum duct tape work for heatsinking around the Aixiz module?
laserboystuart is offline   Reply With Quote
Old 03-25-2010, 04:47 PM #22
HIMNL9's Avatar
Class 4 Laser
 
Join Date: May 2009
Location: Lost somewhere in the EU mess ;)
Posts: 5,416
Rep Power: 404
HIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond repute
HIMNL9 HIMNL9 is offline
Class 4 Laser
HIMNL9's Avatar
 
Join Date: May 2009
Location: Lost somewhere in the EU mess ;)
Posts: 5,416
Rep Power: 404
HIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond repute
Default Re: problem with flexdrive??

TPS 63010 used in the flexdrive is a bit more critical than the 3410 .....

BTW, sorry, i just realized that i gave a wrong data, the normal working frequency of the flexdrive is 2,4MHz, not 1,6 ..... sorry, my error
__________________
High Impulse Multipath Neutron Laser (mark 9 ) (LOL)
Dare mo mita koto no nai, kaze, kumo, suna, umi ..... Kokoro no hate no doko ka eien ga kagayaku.
HIMNL9 is offline   Reply With Quote
Old 03-25-2010, 05:50 PM #23
pHeneX's Avatar
Class 1M Laser
 
Join Date: Feb 2010
Location: Germany
Posts: 162
Rep Power: 12
pHeneX is a glorious beacon of lightpHeneX is a glorious beacon of lightpHeneX is a glorious beacon of lightpHeneX is a glorious beacon of lightpHeneX is a glorious beacon of light
Send a message via ICQ to pHeneX
pHeneX pHeneX is offline
Class 1M Laser
pHeneX's Avatar
 
Join Date: Feb 2010
Location: Germany
Posts: 162
Rep Power: 12
pHeneX is a glorious beacon of lightpHeneX is a glorious beacon of lightpHeneX is a glorious beacon of lightpHeneX is a glorious beacon of lightpHeneX is a glorious beacon of light
Send a message via ICQ to pHeneX
Default Re: problem with flexdrive??

The problem with the high pitched tone ended after i putted in fresh batteries.
Instead my laser flashed up like hell and ended becoming a LED
Okay, 200 thrown outta the window.. but i wanted to know the reason why and checked the driver.
Looks like it blew up?



You can see the top cover of the inductor shattered.
What could make this happen? Is the forward voltage at 410mA with a 12x diode too high? I blew up 2 drivers with it, tho the first one ended up with resistors getting so hot that they just jump of the pcb, don't know why that happened, but my diode wasn't harmed when this happened.
What do i do wrong? I'm very experienced with electronics, i even use a smd soldering iron and wear esd shoes when i do soldering or touching the electronics...
pHeneX is offline   Reply With Quote
Old 03-25-2010, 05:55 PM #24
KiLLrB's Avatar
Class 3R Laser
 
Join Date: Jan 2010
Location: Lubbock, TX USA
Posts: 1,097
Rep Power: 49
KiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond repute
Send a message via MSN to KiLLrB Send a message via Yahoo to KiLLrB
KiLLrB KiLLrB is offline
Class 3R Laser
KiLLrB's Avatar
 
Join Date: Jan 2010
Location: Lubbock, TX USA
Posts: 1,097
Rep Power: 49
KiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond reputeKiLLrB has a reputation beyond repute
Send a message via MSN to KiLLrB Send a message via Yahoo to KiLLrB
Default Re: problem with flexdrive??

Looks like it was the inductor. Looks like it was resonating to shatter like that.
__________________
3 keychain <5mW red lasers
2 ~5mW HeNe (632.8) See my HeNe Disassembly tut HERE
BluRay Laser Pointer
1W+ 445 by Yobresal LINK
sold* OPTO +150mW Green Laser pointer Review Here

FS: Custom circuits and test loads


Quote:
Originally Posted by nikokapo View Post
"Does this rag smell like chloroform to you?"
KiLLrB is offline   Reply With Quote
Old 03-25-2010, 06:02 PM #25
HIMNL9's Avatar
Class 4 Laser
 
Join Date: May 2009
Location: Lost somewhere in the EU mess ;)
Posts: 5,416
Rep Power: 404
HIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond repute
HIMNL9 HIMNL9 is offline
Class 4 Laser
HIMNL9's Avatar
 
Join Date: May 2009
Location: Lost somewhere in the EU mess ;)
Posts: 5,416
Rep Power: 404
HIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond reputeHIMNL9 has a reputation beyond repute
Default Re: problem with flexdrive??

That is not the "top cover" that is part of the ferrite core of the inductor ..... without part of it, your inductor now is less than its nominal value (3,3uH), so the chip, also if still work, cannot work correctly at full current (but i cannot guess what's the actual limit, cause i don't know what exact value your inductor have at the moment, sorry)

And yes, this can cause more instability too .....
__________________
High Impulse Multipath Neutron Laser (mark 9 ) (LOL)
Dare mo mita koto no nai, kaze, kumo, suna, umi ..... Kokoro no hate no doko ka eien ga kagayaku.
HIMNL9 is offline   Reply With Quote
Old 03-25-2010, 06:05 PM #26
Flaminpyro's Avatar
Class 4 Laser
 
Join Date: May 2009
Location: West central Oregon
Posts: 5,461
Rep Power: 1768
Flaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond repute
Flaminpyro Flaminpyro is offline
Class 4 Laser
Flaminpyro's Avatar
 
Join Date: May 2009
Location: West central Oregon
Posts: 5,461
Rep Power: 1768
Flaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond repute
Default Re: problem with flexdrive??

was the inductor chipped or did it have any missing pieces befor it blew ?
__________________
White Fusion Time Machine 445
473nm LRS-0473-KFM-00150-10 158.5mW Lab style
laser used in the making of the latest TRON movie

CNI PGL-III-C-589 125mW
520 in a SH-032
Viasho 532nm 500mW
CNI pen 532nm 84mW
The Violet Pip Squeek 45mW

_____________________________________
LOOKING FOR A HOST WITH PERFECT HEAT SINKING
order your C-88 Cu kit today !

Flaminpyro is offline   Reply With Quote
Old 03-25-2010, 06:10 PM #27
RA_pierce's Avatar
Class 3B Laser
 
Join Date: Sep 2007
Location: Southern California
Posts: 3,260
Rep Power: 3873
RA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond repute
RA_pierce RA_pierce is online now
Class 3B Laser
RA_pierce's Avatar
 
Join Date: Sep 2007
Location: Southern California
Posts: 3,260
Rep Power: 3873
RA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond repute
Default Re: problem with flexdrive??

The inductor is very brittle and I have chipped one with light pressure before, just not that bad.
I find it hard to believe that resonance can cause it to shatter like that, though. It looks to me that the driver was handled roughly.

It sounds like you have a short somewhere. The driver should not heat up like that.
From the looks of it, I would just trash that driver and get a new one to start over.

Also, the Flex cannot be expected to be reliable at >5.5Vf and >350mA current draw.
At that point it is beyond it's operating parameters.
RA_pierce is online now   Reply With Quote
Old 03-26-2010, 07:48 AM #28
pHeneX's Avatar
Class 1M Laser
 
Join Date: Feb 2010
Location: Germany
Posts: 162
Rep Power: 12
pHeneX is a glorious beacon of lightpHeneX is a glorious beacon of lightpHeneX is a glorious beacon of lightpHeneX is a glorious beacon of lightpHeneX is a glorious beacon of light
Send a message via ICQ to pHeneX
pHeneX pHeneX is offline
Class 1M Laser
pHeneX's Avatar
 
Join Date: Feb 2010
Location: Germany
Posts: 162
Rep Power: 12
pHeneX is a glorious beacon of lightpHeneX is a glorious beacon of lightpHeneX is a glorious beacon of lightpHeneX is a glorious beacon of lightpHeneX is a glorious beacon of light
Send a message via ICQ to pHeneX
Default Re: problem with flexdrive??

It was fully intact before it shattered, except there was the high pitch tone coming from it.
And no pressure at all was given to it..
Other ppl drive their 12x with even higher current and their drives are still alive..
Maybe im just unlucky getting drives with bad parts...
pHeneX is offline   Reply With Quote
Old 03-26-2010, 01:22 PM #29
Morgan's Avatar
Class 3R Laser
 
Join Date: Feb 2009
Location: Bedfordshire, UK
Posts: 2,178
Rep Power: 243
Morgan has a reputation beyond reputeMorgan has a reputation beyond reputeMorgan has a reputation beyond reputeMorgan has a reputation beyond reputeMorgan has a reputation beyond reputeMorgan has a reputation beyond reputeMorgan has a reputation beyond reputeMorgan has a reputation beyond reputeMorgan has a reputation beyond reputeMorgan has a reputation beyond reputeMorgan has a reputation beyond repute
Morgan Morgan is offline
Class 3R Laser
Morgan's Avatar
 
Join Date: Feb 2009
Location: Bedfordshire, UK
Posts: 2,178
Rep Power: 243
Morgan has a reputation beyond reputeMorgan has a reputation beyond reputeMorgan has a reputation beyond reputeMorgan has a reputation beyond reputeMorgan has a reputation beyond reputeMorgan has a reputation beyond reputeMorgan has a reputation beyond reputeMorgan has a reputation beyond reputeMorgan has a reputation beyond reputeMorgan has a reputation beyond reputeMorgan has a reputation beyond repute
Default Re: problem with flexdrive??

Hi All,

Just thought I'd add my 2 cents as I'm going to be repairing the original laser mentioned in the thread title for Stuart.

The laser in question is a Jayrob 18650 kit with the, 'Hot Option', which includes a preset Flexdrive, (380mA). All was good with the kit when it arrived as Jayrob's work is exemplary. Stuart installed his LCC diode, which I supplied preinstalled in an Aixiz, but at some point after that connection was lost between the diode and driver. This, it seems, is where the driver has sustained some damage. Stuart then sent it to me to install a new diode with the knowledge the driver may be unuseable in it's current state.

I have to say that I was a little confused initially by the behaviour of the driver when I received it. The first thing I did was hook up my testload to check output. All seemed fine. I got a steady 380mA output. I did however notice the mosquito whine coming from the driver. I have heard this myself before with one of my own Flexdrives but only ever when being driven by low voltage below the shutdown threshold. Having seen a steady output I hooked up a diode I knew to be healthy and... Instant LED. All connections were sound; no shorts or any other signs of electrical problems. Battery was checked beforehand, 4.1V, so no problems there either. So, I checked the output again with a testload. Same readings, bang-on 380mA. I checked the battery with a similar setup of Flexdrive and LCC, absolutely no problems. Could I have been mistaken about the health of the diode? Maybe, so I hooked up another, fresh from the sled... Instant LED. At this point I contacted Dr-Lava and Jayrob to see if they could help. In the mean time I took the laser to meet with an oscilloscope to see if there was anything obvious on the trace. Voltage, when running my testload was between 1.25V and 4V in a nice steady sinewave giving an average of around 2.75V which is pretty much what I expected to see. Not being an oscilloscope with a, 'Record', function I was not able to review the switch-on portion of the trace but there was a noticeable spike of over 5V, (how much over I couldn't say), and thought this might be the problem. Whilst this test was being done Dr-Lava had replied saying that the high pitched whine indicated problems with the control mechanism of the driver and these oscillations were a bad sign probably due to damage incurred when being powered with no connection to the diode. The suggestion being not to use the driver. (I have passed on the observations of the oscilloscope test and await feedback.)

[edit] Feedback from Dr-Lava is that there should have been no sinewave at all! This driver is clearly done for!

In short, it would seem the whining driver is the culprit having been damaged as described above. This is not good news for Stuart of course and should be seen as a cautionary tale but at least we know the cause. He will, however, soon have a working laser on it's way to him as I will replace the driver for him and install a new diode. My thanks to Jayrob and Dr-Lava for the help and support they have given. Their products are fantastic and I can't fault their service! Great build quality throughout.

To Stuart, enjoy your laser, it will be with you soon...

Any further input is welcome.

Thanks,

M
__________________
Do you want to build a laser? But, you know nothing about what is needed, right? Then you need to try the, "I Want to Build a Laser", thread! Everything you wanted to know to get started and more! An easy guide as to what you need and why!

Another good guide can be found here from goninanbl00d - "First Build Guide"
(Temporarily Unavailable)

" ... Lasing on a sunny afternoon." The Kinks.

"Lasing on a Sunday Afternoon." Queen.

" Lase-y Sunday afternoon, I've got no mind to worry... " Small Faces.

"... Yes. It died during the night... So I cooked it! It was very nice." My Dad

Assembly services, parts machined and consultations for specialist builds available. PM me if you need something. Thanks.

Last edited by Morgan; 03-26-2010 at 08:07 PM.
Morgan is offline   Reply With Quote
Old 03-26-2010, 01:28 PM #30
laserboystuart's Avatar
Class 2M Laser
 
Join Date: Jan 2010
Location: birmingham, UK
Posts: 705
Rep Power: 22
laserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud of
laserboystuart laserboystuart is offline
Class 2M Laser
laserboystuart's Avatar
 
Join Date: Jan 2010
Location: birmingham, UK
Posts: 705
Rep Power: 22
laserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud oflaserboystuart has much to be proud of
Default Re: problem with flexdrive??

top noch mate

stuart
__________________
445nm jayrob 18650 @ 900mA 946mW---->Sold... Review Here!
Rayfoss Waterproof 150mW greenie------->Returned
LOC red 210mW------------------------->Sold... Review here!

PM MORGAN FOR HIGH QUALITY LASER BUILDS HERE


Quote:
Originally Posted by AAlasers View Post
Also, would a crap-load of evenly-wound aluminum duct tape work for heatsinking around the Aixiz module?

Last edited by laserboystuart; 03-26-2010 at 01:31 PM.
laserboystuart is offline   Reply With Quote
Old 03-26-2010, 06:21 PM #31
pHeneX's Avatar
Class 1M Laser
 
Join Date: Feb 2010
Location: Germany
Posts: 162
Rep Power: 12
pHeneX is a glorious beacon of lightpHeneX is a glorious beacon of lightpHeneX is a glorious beacon of lightpHeneX is a glorious beacon of lightpHeneX is a glorious beacon of light
Send a message via ICQ to pHeneX
pHeneX pHeneX is offline
Class 1M Laser
pHeneX's Avatar
 
Join Date: Feb 2010
Location: Germany
Posts: 162
Rep Power: 12
pHeneX is a glorious beacon of lightpHeneX is a glorious beacon of lightpHeneX is a glorious beacon of lightpHeneX is a glorious beacon of lightpHeneX is a glorious beacon of light
Send a message via ICQ to pHeneX
Default Re: problem with flexdrive??

Quote:
Originally Posted by Morgan View Post

In short, it would seem the whining driver is the culprit having been damaged as described above.
Why wasn't there any whining the like the first 3-4 seconds turning the laser on? After 3-4 seconds it started whining and the beam got less intense..
I can upload a video if you don't understand what i mean (sorry for my english )
Btw: the driver was hooked up to a diode or testload whenever i put electricity on it.
pHeneX is offline   Reply With Quote
Old 03-26-2010, 06:24 PM #32
Flaminpyro's Avatar
Class 4 Laser
 
Join Date: May 2009
Location: West central Oregon
Posts: 5,461
Rep Power: 1768
Flaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond repute
Flaminpyro Flaminpyro is offline
Class 4 Laser
Flaminpyro's Avatar
 
Join Date: May 2009
Location: West central Oregon
Posts: 5,461
Rep Power: 1768
Flaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond reputeFlaminpyro has a reputation beyond repute
Default Re: problem with flexdrive??

It probly didn't make the whining sound right after putting the battery in because the battery had a high surface charge that went away in just a few seconds after current started to be drawn from the cell, and that is why the whining started because the voltage dropped, when the voltage dropped the regulater drew more current to make up for the loss of voltage and that is what caused the whine, higher current draw and possibly a loose winding on the coil, the other reason is the driver could be bad ! IMHO.



Quote:
Originally Posted by pHeneX View Post
Why wasn't there any whining the like the first 3-4 seconds turning the laser on? After 3-4 seconds it started whining and the beam got less intense..
I can upload a video if you don't understand what i mean (sorry for my english )
__________________
White Fusion Time Machine 445
473nm LRS-0473-KFM-00150-10 158.5mW Lab style
laser used in the making of the latest TRON movie

CNI PGL-III-C-589 125mW
520 in a SH-032
Viasho 532nm 500mW
CNI pen 532nm 84mW
The Violet Pip Squeek 45mW

_____________________________________
LOOKING FOR A HOST WITH PERFECT HEAT SINKING
order your C-88 Cu kit today !


Last edited by Flaminpyro; 03-26-2010 at 06:35 PM.
Flaminpyro is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


LinkBacks (?)
LinkBack to this Thread: http://laserpointerforums.com/f51/problem-flexdrive-49331.html
Posted By For Type Date
Flexdrive failure? This thread Refback 02-07-2012 01:39 PM










Loading








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes






Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 10:15 AM.


Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC