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09-25-2009, 11:15 PM #1
 Class 2M Laser Join Date: Aug 2009 Posts: 690 Rep Power: 20
Tabish
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PHR works !!!!!! Got few questions...

Finally got my PHR working. Its awesome.

Had to drill out the back of the aixiz module tube so the wires could pass through.

It's purplish but turns blue when pointing on cloth/paper etc...

LIGHTS RED MATCHES !!!! (only ones I tried)
SMOKES PLASTIC!!!

I am using the 15\$ aixiz glass lense from ebay.
I think I'll need to crazyglue the lense to the metal turning knob.

DRIVER CURRENT: Using RKCSTR driver

Calculated: (1.25 / Resistance) x 1000 = Current in MiliAmps
(1.25 / 12.3) x 1000 = 101.6 mA

Actual: 101.5 mA
(Tested using digital multimeter between battery positive and driver positive input)

MY CONCLUSION: Test Loads for rkcstr/phr ARE USELESS!!!!!

Use the formula: (1.25 / Resistance) x 1000 = Current in MiliAmps

SOME QUESTIONS:

- Should I stay at 101.5mA or is it safe to go higher????

- Should I use crazy glue to glue the aixiz knob to the aixiz glass lense???

- Whats a CHEAP HOST??? (I mean dirt cheap, I'm pretty much broke atm haha)

Can this work ??
http://www.dealextreme.com/details.dx/sku.22336 OR
http://www.dealextreme.com/details.dx/sku.91
Attached Thumbnails

Last edited by Tabish; 09-26-2009 at 08:54 AM.

09-25-2009, 11:26 PM #2
 Class 3R Laser Join Date: Aug 2007 Posts: 2,046 Rep Power: 211
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Re: PHR works !!!!!! Got few questions...

Don't crazy glue/super glue a lens. Many glues of that type "fume", as in as the solvent evaporates, it leaves a coating of glue on everything nearby. Needless to say, this is bad for optics.

And test loads aren't useless. Not overly useful for an LM317 driver, but absolutely critical for other drivers. A lavadrive, for instance, will break if you use it without a testload. And I don't know about you, but I'm not putting an expensive diode on there to serve as my testload.

And you can do what you want, but I'd say just stick with that current. It'll last a long time at that, go higher with later builds.

And go get a project box at Radio Shack. It's a little black box, very easy to fit a laser in. Just get the smallest box that you're sure you can fit everything into, it's a great way to start your first laser. Then you can start planning more for future builds to be in nicer hosts, but it's always nice to get that first one enclosed in SOMETHING, just to say you really finished it.

09-25-2009, 11:34 PM #3
 Class 3B Laser Join Date: May 2009 Location: Sydney, Australia Posts: 3,256 Rep Power: 272
bobhaha
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Re: PHR works !!!!!! Got few questions...

wait wait wait.. you can check the current from the pos battery output and the pos driver input?? is that correct? doesn't sound right to me..

there are many hosts out there.. finding one for you really depends on your budget, as pullbangdead said you can get a project box from radioshack for a few \$\$ and drill out a 12 mm hole for the aixiz module, or depending on your budget you can go for "kits" from members here or off online sites. I'm guessing its going to be the first option but extra info can't hurt!
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632.8nm - Red He-Ne laser ~1mW
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542.8nm - Green He-Ne laser ~2.5mW
532nm - 620mW+ lasersman Firedragon III* - 100mW PGL-III-M from JETLASERS* - 70mW Rayfoss Host*
~~~ - 175mW Rayfoss Host - <5mW WL Core - 55mW DinoDirect review laser*

488nm - On the hoist
473nm - 2x CNI lab lasers ~40mW
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405nm - 65mW GLP-405 Aquarius host - 160mW 6x Blu-ray MXDL Host
Total: 71,868.5 mW

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09-26-2009, 12:34 AM #4
 Class 4 Laser Join Date: Nov 2008 Posts: 5,736 Rep Power: 395
ElektroFreak
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Re: PHR works !!!!!! Got few questions...

Quote:
 Originally Posted by bobhaha wait wait wait.. you can check the current from the pos battery output and the pos driver input?? is that correct? doesn't sound right to me..

With strictly linear drivers like the LM317 and rkcstr you can, yes. There is a very trivial difference between the current reading there and the current reading at the diode.
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Sam's Laser FAQ (The Laser Bible)

http://www.repairfaq.org/sam/laserfaq.htm

RP Photonics Encyclopedia of Laser Physics and Technology

http://www.rp-photonics.com/encyclopedia.html

ULTIMATE DIY PROJECTOR REFERENCE

http://nqlasers.com/scannerreference...itle=Main_Page

SUCCESS is the best revenge.

09-26-2009, 12:39 AM #5
 Class 2M Laser Join Date: Aug 2009 Posts: 690 Rep Power: 20
Tabish
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Re: PHR works !!!!!! Got few questions...

Quote:
 Originally Posted by pullbangdead Don't crazy glue/super glue a lens. Many glues of that type "fume", as in as the solvent evaporates, it leaves a coating of glue on everything nearby. Needless to say, this is bad for optics. And test loads aren't useless. Not overly useful for an LM317 driver, but absolutely critical for other drivers. A lavadrive, for instance, will break if you use it without a testload. And I don't know about you, but I'm not putting an expensive diode on there to serve as my testload. And you can do what you want, but I'd say just stick with that current. It'll last a long time at that, go higher with later builds. And go get a project box at Radio Shack. It's a little black box, very easy to fit a laser in. Just get the smallest box that you're sure you can fit everything into, it's a great way to start your first laser. Then you can start planning more for future builds to be in nicer hosts, but it's always nice to get that first one enclosed in SOMETHING, just to say you really finished it.
Thanks for stopping me. I almost glued the lense haha

Btw, I never said test loads are useless. Just not usefull it seems for PHR / rkcstr. I mean I was of by 0.1 mA lol
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09-26-2009, 12:39 AM #6
 Class 3B Laser Join Date: May 2009 Location: Sydney, Australia Posts: 3,256 Rep Power: 272
bobhaha
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Re: PHR works !!!!!! Got few questions...

what do you mean trivial difference.. and btw do you measure the resistance between the two.. and does it have to be used with a test load? i dont see how the input will determine the output current.. maybe im missing something..

btw your off by 1.6ma not 0.01 work it out..

1.25/12.5 = 0.1
0.1*1000 = 100ma not 101.5
__________________
Lasers!
10.6um - >40W CO2 Laser - 25W RF excited CO2 Laser*
685nm - Being built!
660nm - 250mW LOC PowerLight B50 Host - 100mW WL pulsar
635nm - 430mW C6 Host*
632.8nm - Red He-Ne laser ~1mW
593.5nm - Regal 5
542.8nm - Green He-Ne laser ~2.5mW
532nm - 620mW+ lasersman Firedragon III* - 100mW PGL-III-M from JETLASERS* - 70mW Rayfoss Host*
~~~ - 175mW Rayfoss Host - <5mW WL Core - 55mW DinoDirect review laser*

488nm - On the hoist
473nm - 2x CNI lab lasers ~40mW
445nm - 3W Big Boyz Laser - >1.1W Cree C6 Host - 650mW WL Arctic
405nm - 65mW GLP-405 Aquarius host - 160mW 6x Blu-ray MXDL Host
Total: 71,868.5 mW

Goggles!
Laser glow LSG-532-Sport protective eye goggles OD 7+ 190-532nm HIGHLY RECOMMENDED!!
Jetlasers wrap around 190-540nm OD4+ goggles*
Eagle Pair Red OD4+ goggles
Scopeguy20 Blublockers for 405nm lasers!

* indicates a review has been done, on this item.

Last edited by bobhaha; 09-26-2009 at 12:42 AM.

09-26-2009, 12:44 AM #7
 Class 4 Laser Join Date: Nov 2008 Posts: 5,736 Rep Power: 395
ElektroFreak
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Re: PHR works !!!!!! Got few questions...

By trivial i mean overlookable, maybe .1mA. And no, you don't really need a test load with linear drivers. The driver circuitry doesn't draw any current of it's own, really. Only the diode draws current, a linear driver just conditions and regulates the current and the voltage This does not apply to switching or buck/boost drivers (flexdrive) as these draw extra current over and above what the diode draws.
__________________
Laser Resources (for n00bs and veterans alike!)

Sam's Laser FAQ (The Laser Bible)

http://www.repairfaq.org/sam/laserfaq.htm

RP Photonics Encyclopedia of Laser Physics and Technology

http://www.rp-photonics.com/encyclopedia.html

ULTIMATE DIY PROJECTOR REFERENCE

http://nqlasers.com/scannerreference...itle=Main_Page

SUCCESS is the best revenge.

09-26-2009, 12:44 AM #8
 Class 3B Laser Join Date: Jan 2009 Location: Spain, tarragona Posts: 3,637 Rep Power: 218
Hallucynogenyc
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Re: PHR works !!!!!! Got few questions...

I read the current on the batteries to know the current. It's way easier and you can adjust the pot while looking at the MM screen
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Laserlands 30mW disco laser --------------------------> Review
5mW pointers (many of them)
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120mW PHR custom build
200mW GGW custom build

Focalprice 7\$ green&bluray laser goggles
Dealextreme tripod and clamp for laser holding -----> Review
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09-26-2009, 12:51 AM #9
 Class 3B Laser Join Date: May 2009 Location: Sydney, Australia Posts: 3,256 Rep Power: 272
bobhaha
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Re: PHR works !!!!!! Got few questions...

ok.. so just to verify.. you measure the current between the pos battery (out) and pos battery (in, driver) in series? and you can adjust the pot and get differing readings.. does that all sound correct?
__________________
Lasers!
10.6um - >40W CO2 Laser - 25W RF excited CO2 Laser*
685nm - Being built!
660nm - 250mW LOC PowerLight B50 Host - 100mW WL pulsar
635nm - 430mW C6 Host*
632.8nm - Red He-Ne laser ~1mW
593.5nm - Regal 5
542.8nm - Green He-Ne laser ~2.5mW
532nm - 620mW+ lasersman Firedragon III* - 100mW PGL-III-M from JETLASERS* - 70mW Rayfoss Host*
~~~ - 175mW Rayfoss Host - <5mW WL Core - 55mW DinoDirect review laser*

488nm - On the hoist
473nm - 2x CNI lab lasers ~40mW
445nm - 3W Big Boyz Laser - >1.1W Cree C6 Host - 650mW WL Arctic
405nm - 65mW GLP-405 Aquarius host - 160mW 6x Blu-ray MXDL Host
Total: 71,868.5 mW

Goggles!
Laser glow LSG-532-Sport protective eye goggles OD 7+ 190-532nm HIGHLY RECOMMENDED!!
Jetlasers wrap around 190-540nm OD4+ goggles*
Eagle Pair Red OD4+ goggles
Scopeguy20 Blublockers for 405nm lasers!

* indicates a review has been done, on this item.

09-26-2009, 12:54 AM #10
 Class 4 Laser Join Date: Sep 2008 Location: Quebec, Canada Posts: 14,823 Rep Power: 477
lasersbee
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Re: PHR works !!!!!! Got few questions...

Quote:
 Originally Posted by Tabish Thanks for stopping me. I almost glued the lense haha Btw, I never said test loads are useless. Just not usefull it seems for PHR / rkcstr. I mean I was of by 0.1 mA lol
Everything you Post is recorded on the Form...

Quote:
 Originally Posted by Tabish MY CONCLUSION: Test Loads for phr ARE USELESS!!!!!
@bobhaha... yes with a linear current driver like the DLL only...

@ EF.... yes... I believe a Test Load should be used to adjust the
current of a driver BEFORE connecting an expensive and sensitive
LD... (it is not written in stone or a Law of the Land but prudent)

The miniscule pots on the drivers are so touchy that you could easily
over drivevthe LD and blow it while adjusting it's current..
With a Test Load that would be avoided... IMO

Jerry
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Last edited by lasersbee; 09-26-2009 at 01:03 AM.

09-26-2009, 12:57 AM #11
 Class 3B Laser Join Date: May 2009 Location: Sydney, Australia Posts: 3,256 Rep Power: 272
bobhaha
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Re: PHR works !!!!!! Got few questions...

ok thank you laserbee!
__________________
Lasers!
10.6um - >40W CO2 Laser - 25W RF excited CO2 Laser*
685nm - Being built!
660nm - 250mW LOC PowerLight B50 Host - 100mW WL pulsar
635nm - 430mW C6 Host*
632.8nm - Red He-Ne laser ~1mW
593.5nm - Regal 5
542.8nm - Green He-Ne laser ~2.5mW
532nm - 620mW+ lasersman Firedragon III* - 100mW PGL-III-M from JETLASERS* - 70mW Rayfoss Host*
~~~ - 175mW Rayfoss Host - <5mW WL Core - 55mW DinoDirect review laser*

488nm - On the hoist
473nm - 2x CNI lab lasers ~40mW
445nm - 3W Big Boyz Laser - >1.1W Cree C6 Host - 650mW WL Arctic
405nm - 65mW GLP-405 Aquarius host - 160mW 6x Blu-ray MXDL Host
Total: 71,868.5 mW

Goggles!
Laser glow LSG-532-Sport protective eye goggles OD 7+ 190-532nm HIGHLY RECOMMENDED!!
Jetlasers wrap around 190-540nm OD4+ goggles*
Eagle Pair Red OD4+ goggles
Scopeguy20 Blublockers for 405nm lasers!

* indicates a review has been done, on this item.

09-26-2009, 12:57 AM #12
 Class 3B Laser Join Date: Jan 2009 Location: Spain, tarragona Posts: 3,637 Rep Power: 218
Hallucynogenyc
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Re: PHR works !!!!!! Got few questions...

Well, not exactly. Use the amperimeter to close the circuit replacing the switch for example.

I find it easier anyway to put a 1 ohm resistor between any part of the circuit outside the driver. For instance, on a Dilda, get the rear button out and put a resistor there closing the circuit. measure the voltage and you have the current. Easy right?
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Learn how to use Opera and tell me about your experience here!

Wicked Lasers Evolution Pro 130mW ------------------> Review
Rayfoss 150mW waterproof
Rayfoss 200mW focusable torch -----------------------> Review
Dealextreme 5mW true laser pointer
Dealextreme 50mW true laser pointer
Dealextreme 100mW true laser pointer
Laserlands 30mW disco laser --------------------------> Review
5mW pointers (many of them)
DX 200mW Red laser (Dilda) --------------------------> Review
120mW PHR custom build
200mW GGW custom build

Focalprice 7\$ green&bluray laser goggles
Dealextreme tripod and clamp for laser holding -----> Review
DIY 3 motor Spirograph --------------------------------> Review
HLPM-2 laser power meter

09-26-2009, 01:10 AM #13
 Class 2M Laser Join Date: Aug 2009 Posts: 690 Rep Power: 20
Tabish
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Re: PHR works !!!!!! Got few questions...

Quote:
 Originally Posted by bobhaha what do you mean trivial difference.. and btw do you measure the resistance between the two.. and does it have to be used with a test load? i dont see how the input will determine the output current.. maybe im missing something.. btw your off by 1.6ma not 0.01 work it out.. 1.25/12.5 = 0.1 0.1*1000 = 100ma not 101.5
Ahh, my bad. I meant a resistance of 12.3 not 12.5.
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09-26-2009, 01:10 AM #14
 Class 4 Laser Join Date: Sep 2008 Location: Quebec, Canada Posts: 14,823 Rep Power: 477
lasersbee
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Re: PHR works !!!!!! Got few questions...

@ Hallu......

assemble the LD and driver into a Host..

After the LD is already in the host.. you can easily use the Amp or
MilliAmp setting on your DMM directly across the battery and Host
case to see how much current you are pulling.

But if you want to re-adjust the current on the Driver... my above
thoughts on the Test Load and why.. still apply...

Jerry
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09-26-2009, 01:12 AM #15
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Tabish
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Re: PHR works !!!!!! Got few questions...

Quote:
 Originally Posted by lasersbee Everything you Post is recorded on the Form... @bobhaha... yes with a linear current driver like the DLL only... @ EF.... yes... I believe a Test Load should be used to adjust the current of a driver BEFORE connecting an expensive and sensitive LD... (it is not written in stone or a Law of the Land but prudent) The miniscule pots on the drivers are so touchy that you could easily over drivevthe LD and blow it while adjusting it's current.. With a Test Load that would be avoided... IMO Jerry
Rofl, got me. I meant for the rkcstr. I have never used a flexdrive so I guess you need test loads for it.
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09-26-2009, 01:14 AM #16
 Class 4 Laser Join Date: Sep 2008 Location: Quebec, Canada Posts: 14,823 Rep Power: 477
lasersbee
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Re: PHR works !!!!!! Got few questions...

I use test loads on all drivers before I connect any sensitive
and expensive LD to a Driver..

Jerry
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