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 > Experiments & Modifications



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



Reply
 
LinkBack Thread Tools Display Modes
Old 02-25-2008, 07:31 AM #273
Class 1M Laser
 
Join Date: Feb 2008
Posts: 114
Rep Power: 10
hydro is on a distinguished road
hydro hydro is offline
Class 1M Laser
 
Join Date: Feb 2008
Posts: 114
Rep Power: 10
hydro is on a distinguished road
Default Re: DIY Laser Torch

I need some help please. Just got most of the parts to build this bad boy but what I want is to use 2 cr123s 3.6V (7.2v total) with about 420mA at 3 volts output. I know if I use a 3 ohm resistor it should give me 416mA but the with 7.2v input it will give me 4.2v output right? Now here is where I'm stuck, I can't find a 3 ohms resistor so what combinations can I use to give me that 3 ohms range? All the resistors I can find are 33, 20, 15 and 10 ohms (1/2 watt). With what I have I know I can get 2.5 ohms but this will give me 500mA and that is too high. Also how can I bring down the 4.2 volts to 3 volts? Do I add a pot, if so what size or can I add 2 1N400X in series between the V-out (LM313T) and the 3 omhs resistor? Please keept in mind that space is very limited and with a heat-sink there is really no space at all. Thanks for the help inadvance. :-/ :-[


hydro is offline   Reply With Quote







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







Old 02-25-2008, 07:47 AM #274
jayrob's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Northern CA, U.S. Astrophotography! (Some of my Photos)
Posts: 9,851
Rep Power: 3922
jayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond repute
jayrob jayrob is offline
Class 4 Laser
jayrob's Avatar
 
Join Date: Sep 2007
Location: Northern CA, U.S. Astrophotography! (Some of my Photos)
Posts: 9,851
Rep Power: 3922
jayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond repute
Default Re: DIY Laser Torch

Quote:
Originally Posted by hydro
I need some help please. *Just got most of *the parts to build this bad boy but what I want is to use 2 cr123s 3.6V (7.2v total) with about 420mA at 3 volts output. *I know if I use a 3 ohm resistor it should give me 416mA but the with 7.2v input *it will give me 4.2v output right? * Now here is where I'm stuck, I can't find a 3 ohms resistor so what combinations can I use to give me that 3 ohms range? *All the resistors I can find are 33, 20, 15 and 10 ohms (1/2 watt). With what I have I know I can get 2.5 ohms but this will give me 500mA and that is too high. *Also how can I bring down the 4.2 volts to 3 volts? *Do I add a pot, if so what size or can I add 2 1N400X in series between the V-out (LM313T) and the 3 omhs resistor? *Please keept in mind that space is very limited and with a heat-sink there is really no space at all. *Thanks for the help inadvance. :-/ :-[
Your voltage will be right using 2 X 3.6 volt RCR123 rechargeable batteries. The LD will need 3ish and the driver will use over 3 as well. We have been using just a single resistor, no pot for the MXDL at this power. If your going to use this MXDL that DDL has shown here, and you are talking about a 3 ohm resistor, I'm sure you are going to use an open can diode. You may want to pick up one of my heatsinks. If you want the heatsink, just remind me, and I will give you a 3 ohm resistor with it. Also, the stock MXDL has a resistor. It usualy is a 3 ohm resistor. You will have to check the color markings, and compare here: http://samengstrom.com/nxl/3660/4_ba...e_page.en.html If you are interested in the heatsink, check here: http://www.laserpointerforums.com/fo...m=1202452073/0 Have fun with your build!...
Jay
__________________
Personal lasers:
(just a few - too many to list) RPL 425, Sypder III Krypton, RPL 35 (473), GLP-473, GLP-593.5, HeNe 632.8,
Many DIY 445, red, blu-ray, green, 635, and 450 builds...


Looking for a DIY kit?


Take a look at some of my more popular kits linked in color...

* FS: 405-G-1 Glass Lens Mod for Blu-ray! 31% increase in power vs AixiZ acrylic!

* FS: New! 1000 Lumen XML-2 Maglite Modification With Voltage Monitor! - Parts or Complete Light! Must see!

* FS: Polished Stainless Steel Green Kit! Easy assembly in minutes!

* FS: Large Maglite Monster Kits! Side Button Forward Clicky! Custom Head Option! Gnarly...


Click here for a list of my build kits! Projects and tutorials too!

jayrob is offline   Reply With Quote
Old 02-27-2008, 03:55 AM #275
Class 1M Laser
 
Join Date: Feb 2008
Posts: 114
Rep Power: 10
hydro is on a distinguished road
hydro hydro is offline
Class 1M Laser
 
Join Date: Feb 2008
Posts: 114
Rep Power: 10
hydro is on a distinguished road
Default Re: DIY Laser Torch

Hey Jay that looks great, wish I was not short on cash right now. Any way I'm still waiting on parts from aixiz, can't proceed with project without the blank housing. Any one have problem with order being shipped in a timely manner? It has been 22 DAYS from the time I order and paid for the parts.
hydro is offline   Reply With Quote
Old 02-27-2008, 02:08 PM #276
Class 1M Laser
 
Join Date: Feb 2008
Posts: 116
Rep Power: 10
Ifrgtmyname is on a distinguished road
Ifrgtmyname Ifrgtmyname is offline
Class 1M Laser
 
Join Date: Feb 2008
Posts: 116
Rep Power: 10
Ifrgtmyname is on a distinguished road
Default Re: DIY Laser Torch

Call me a bit of a noob here but why would batteries be such a big problem, after all u do have a capacitor. Also the batteries are meant to chuck out 3V each right?

So if the battery is sending out 3.1V how much harm would it do?- What is the watershed?
Ifrgtmyname is offline   Reply With Quote
Old 02-27-2008, 02:36 PM #277
jayrob's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Northern CA, U.S. Astrophotography! (Some of my Photos)
Posts: 9,851
Rep Power: 3922
jayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond repute
jayrob jayrob is offline
Class 4 Laser
jayrob's Avatar
 
Join Date: Sep 2007
Location: Northern CA, U.S. Astrophotography! (Some of my Photos)
Posts: 9,851
Rep Power: 3922
jayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond repute
Default Re: DIY Laser Torch

Quote:
Originally Posted by Ifrgtmyname
Call me a bit of a noob here but why would batteries be such a big problem, after all u do have a capacitor. Also the batteries are meant to chuck out 3V each right?

So if the battery is sending out 3.1V how much harm would it do?- What is the watershed?
Depending on the driver/LD combination. I know about the LM317 based drivers. (DDL) There are other drivers. The DDL driver is very poplular. The red diodes draw about 3 volts. The blu-rays draw 4.5 to 5 volts. The DDL driver needs over 3 volts total. So, depending on what LD you are trying to drive, and what driver you want to use, you must have the proper battery supply voltage...
Jay
__________________
Personal lasers:
(just a few - too many to list) RPL 425, Sypder III Krypton, RPL 35 (473), GLP-473, GLP-593.5, HeNe 632.8,
Many DIY 445, red, blu-ray, green, 635, and 450 builds...


Looking for a DIY kit?


Take a look at some of my more popular kits linked in color...

* FS: 405-G-1 Glass Lens Mod for Blu-ray! 31% increase in power vs AixiZ acrylic!

* FS: New! 1000 Lumen XML-2 Maglite Modification With Voltage Monitor! - Parts or Complete Light! Must see!

* FS: Polished Stainless Steel Green Kit! Easy assembly in minutes!

* FS: Large Maglite Monster Kits! Side Button Forward Clicky! Custom Head Option! Gnarly...


Click here for a list of my build kits! Projects and tutorials too!

jayrob is offline   Reply With Quote
Old 02-29-2008, 03:15 AM #278
Class 1M Laser
 
Join Date: Dec 2007
Posts: 120
Rep Power: 10
bcroft is on a distinguished road
bcroft bcroft is offline
Class 1M Laser
 
Join Date: Dec 2007
Posts: 120
Rep Power: 10
bcroft is on a distinguished road
Default Re: DIY Laser Torch

i been paying attention to mA and not the battery voltage. im using DDLs driver, plan on using a phazor LD from the GB and just ordered some batteries that the volts are supposed to be 3.0 to 3.2 under load but charge up to 3.6. is 3.6 too much for my setup? how do find out if it is?
bcroft is offline   Reply With Quote
Old 02-29-2008, 04:44 AM #279
jayrob's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Northern CA, U.S. Astrophotography! (Some of my Photos)
Posts: 9,851
Rep Power: 3922
jayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond repute
jayrob jayrob is offline
Class 4 Laser
jayrob's Avatar
 
Join Date: Sep 2007
Location: Northern CA, U.S. Astrophotography! (Some of my Photos)
Posts: 9,851
Rep Power: 3922
jayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond repute
Default Re: DIY Laser Torch

Quote:
Originally Posted by bcroft
i been paying attention to mA and not the battery voltage. *im using DDLs driver, plan on using a phazor LD from the GB and just ordered some batteries that the volts are supposed to be 3.0 to 3.2 under load but charge up to 3.6. *is 3.6 too much for my setup? * how do find out if it is?
For the DDL (LM317 based) driver, and a Phazor (red) dioed, you want at least 2 X 3.6 volt batteries. The driver can handle up to 37 volts input. But for driving these red diodes, the 3.6 rechargeable batteries X 2, are just right...
Jay
__________________
Personal lasers:
(just a few - too many to list) RPL 425, Sypder III Krypton, RPL 35 (473), GLP-473, GLP-593.5, HeNe 632.8,
Many DIY 445, red, blu-ray, green, 635, and 450 builds...


Looking for a DIY kit?


Take a look at some of my more popular kits linked in color...

* FS: 405-G-1 Glass Lens Mod for Blu-ray! 31% increase in power vs AixiZ acrylic!

* FS: New! 1000 Lumen XML-2 Maglite Modification With Voltage Monitor! - Parts or Complete Light! Must see!

* FS: Polished Stainless Steel Green Kit! Easy assembly in minutes!

* FS: Large Maglite Monster Kits! Side Button Forward Clicky! Custom Head Option! Gnarly...


Click here for a list of my build kits! Projects and tutorials too!

jayrob is offline   Reply With Quote
Old 03-03-2008, 02:16 AM #280
Junior Member
 
Join Date: Mar 2008
Posts: 14
Rep Power: 0
zanthrax is on a distinguished road
zanthrax zanthrax is offline
Junior Member
 
Join Date: Mar 2008
Posts: 14
Rep Power: 0
zanthrax is on a distinguished road
Default Re: DIY Laser Torch

I have a LM317 transitor, but unlike yours its larger and has a metal piece with a circular hole cut into it, what exactly is the difference and can I use it in this project? Thanks!
zanthrax is offline   Reply With Quote
Old 03-03-2008, 02:38 AM #281
jayrob's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Northern CA, U.S. Astrophotography! (Some of my Photos)
Posts: 9,851
Rep Power: 3922
jayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond repute
jayrob jayrob is offline
Class 4 Laser
jayrob's Avatar
 
Join Date: Sep 2007
Location: Northern CA, U.S. Astrophotography! (Some of my Photos)
Posts: 9,851
Rep Power: 3922
jayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond repute
Default Re: DIY Laser Torch

Quote:
Originally Posted by zanthrax
I have a LM317 transitor, but unlike yours its larger and has a metal piece with a circular hole cut into it, what exactly is the difference and can I use it in this project? Thanks!
I use the same LM317 that you are talking about. Take a look at the pictures and notes in my 'Driver Tips' document. You have to cut the metal piece down some to make room. Also, be aware that this metal part of the LM317, is VOut (as well as the middle pin). So, do not let it touch anything...
Jay
http://www.sonic.net/~jayrob/MXDLDriverTips.doc
__________________
Personal lasers:
(just a few - too many to list) RPL 425, Sypder III Krypton, RPL 35 (473), GLP-473, GLP-593.5, HeNe 632.8,
Many DIY 445, red, blu-ray, green, 635, and 450 builds...


Looking for a DIY kit?


Take a look at some of my more popular kits linked in color...

* FS: 405-G-1 Glass Lens Mod for Blu-ray! 31% increase in power vs AixiZ acrylic!

* FS: New! 1000 Lumen XML-2 Maglite Modification With Voltage Monitor! - Parts or Complete Light! Must see!

* FS: Polished Stainless Steel Green Kit! Easy assembly in minutes!

* FS: Large Maglite Monster Kits! Side Button Forward Clicky! Custom Head Option! Gnarly...


Click here for a list of my build kits! Projects and tutorials too!

jayrob is offline   Reply With Quote
Old 03-05-2008, 12:30 PM #282
Junior Member
 
Join Date: Feb 2008
Posts: 12
Rep Power: 0
steelybob is a name known to allsteelybob is a name known to allsteelybob is a name known to allsteelybob is a name known to allsteelybob is a name known to allsteelybob is a name known to all
steelybob steelybob is offline
Junior Member
 
Join Date: Feb 2008
Posts: 12
Rep Power: 0
steelybob is a name known to allsteelybob is a name known to allsteelybob is a name known to allsteelybob is a name known to allsteelybob is a name known to allsteelybob is a name known to all
Default Re: DIY Laser Torch

got my heatsink from jayrob and merideth unit in the last couple of days. i have all my components to make the driver if my damn mxdl will ever get here from china. anyway here are some pics of what i have so far... god i hope i haven't fried anything yet lol.

steelybob

meredith glass unit installed
Attached Thumbnails
DIY Laser Torch-meredith_1.jpg  
steelybob is offline   Reply With Quote
Old 03-05-2008, 12:32 PM #283
Junior Member
 
Join Date: Feb 2008
Posts: 12
Rep Power: 0
steelybob is a name known to allsteelybob is a name known to allsteelybob is a name known to allsteelybob is a name known to allsteelybob is a name known to allsteelybob is a name known to all
steelybob steelybob is offline
Junior Member
 
Join Date: Feb 2008
Posts: 12
Rep Power: 0
steelybob is a name known to allsteelybob is a name known to allsteelybob is a name known to allsteelybob is a name known to allsteelybob is a name known to allsteelybob is a name known to all
Default Re: DIY Laser Torch

heatsink
Attached Thumbnails
DIY Laser Torch-heatsink_1.jpg  
steelybob is offline   Reply With Quote
Old 03-05-2008, 02:38 PM #284
jayrob's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Northern CA, U.S. Astrophotography! (Some of my Photos)
Posts: 9,851
Rep Power: 3922
jayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond repute
jayrob jayrob is offline
Class 4 Laser
jayrob's Avatar
 
Join Date: Sep 2007
Location: Northern CA, U.S. Astrophotography! (Some of my Photos)
Posts: 9,851
Rep Power: 3922
jayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond repute
Default Re: DIY Laser Torch

steelybob, that's looking really clean! Just a note to others about the Meredith, if you haven't used one before, (I think that you and I already discussed this) but from your pictures, you can see that the focussing knob/ring is not screwed in all the way. The Meredith modules, can be a little 'tricky' to get to the proper focus. Especially the glass lens ones. Take a look at my notes/tips on the Meredith modules here in my 'Heatsink Tips' document...
Jay
http://www.sonic.net/~jayrob/MXDLHeatsinkTips.doc

P.S. I have some other useful information on the DDL style driver here:
http://www.sonic.net/~jayrob/MXDLDriverTips.doc

I have sometimes even had to go a step further to get focus with the Meredith glass lens. Take a close look at this picture. The outer 'skirt' of this brass piece, (where the spring is connected) has been cut shorter. This is to allow more room inside the module case for focussing.
__________________
Personal lasers:
(just a few - too many to list) RPL 425, Sypder III Krypton, RPL 35 (473), GLP-473, GLP-593.5, HeNe 632.8,
Many DIY 445, red, blu-ray, green, 635, and 450 builds...


Looking for a DIY kit?


Take a look at some of my more popular kits linked in color...

* FS: 405-G-1 Glass Lens Mod for Blu-ray! 31% increase in power vs AixiZ acrylic!

* FS: New! 1000 Lumen XML-2 Maglite Modification With Voltage Monitor! - Parts or Complete Light! Must see!

* FS: Polished Stainless Steel Green Kit! Easy assembly in minutes!

* FS: Large Maglite Monster Kits! Side Button Forward Clicky! Custom Head Option! Gnarly...


Click here for a list of my build kits! Projects and tutorials too!

jayrob is offline   Reply With Quote
Old 03-05-2008, 04:31 PM #285
Junior Member
 
Join Date: Feb 2008
Posts: 12
Rep Power: 0
steelybob is a name known to allsteelybob is a name known to allsteelybob is a name known to allsteelybob is a name known to allsteelybob is a name known to allsteelybob is a name known to all
steelybob steelybob is offline
Junior Member
 
Join Date: Feb 2008
Posts: 12
Rep Power: 0
steelybob is a name known to allsteelybob is a name known to allsteelybob is a name known to allsteelybob is a name known to allsteelybob is a name known to allsteelybob is a name known to all
Default Re: DIY Laser Torch

jayrob thank you again for all your help. after i took those pics i did take the LD back out and filed about .030 off of the face of the brass adapter. i guess i will have to see once i get everything together if i need to file some of the skirt off... we'll see.
steelybob is offline   Reply With Quote
Old 03-05-2008, 11:25 PM #286
Class 2M Laser
 
Join Date: Jan 2008
Posts: 606
Rep Power: 15
clwatkins10 is a jewel in the roughclwatkins10 is a jewel in the roughclwatkins10 is a jewel in the roughclwatkins10 is a jewel in the rough
clwatkins10 clwatkins10 is offline
Class 2M Laser
 
Join Date: Jan 2008
Posts: 606
Rep Power: 15
clwatkins10 is a jewel in the roughclwatkins10 is a jewel in the roughclwatkins10 is a jewel in the roughclwatkins10 is a jewel in the rough
Default Re: DIY Laser Torch

looks very nice and professional
clwatkins10 is offline   Reply With Quote
Old 03-06-2008, 01:13 AM #287
Abray's Avatar
Class 2M Laser
 
Join Date: Nov 2007
Posts: 933
Rep Power: 15
Abray is a jewel in the roughAbray is a jewel in the roughAbray is a jewel in the rough
Send a message via AIM to Abray
Abray Abray is offline
Class 2M Laser
Abray's Avatar
 
Join Date: Nov 2007
Posts: 933
Rep Power: 15
Abray is a jewel in the roughAbray is a jewel in the roughAbray is a jewel in the rough
Send a message via AIM to Abray
Default Re: DIY Laser Torch

Ok I've already fried one diode in this project and have absolutely no idea why. When I checked the current, it either read 1,200 mA or 300 mA or 600 mA, depending on how it was feeling (meaning I have no idea). I had checked and double checked my circuit, and still got an LED. Now I am working on trying to actually make a driver for this so when my two new drives arrive, I can actually NOT fry them! I think my curcuit is ok, even though it seems it only works when it wants to. I just have a problem with the circuit board found within the MXDL. It won't stay put in that metal piece, and this really messes with the battery configuration. Also, where exactly do I need a wire leading back to the negative terminal of the battery? I can't seem to figure this out, and I think this may be a problem too.

I'm not exactly a "noob", but I am having ALOT of trouble with this project. any help?
__________________
Proud Colorado School of Mines student
Abray is offline   Reply With Quote
Old 03-06-2008, 01:36 AM #288
jayrob's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Northern CA, U.S. Astrophotography! (Some of my Photos)
Posts: 9,851
Rep Power: 3922
jayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond repute
jayrob jayrob is offline
Class 4 Laser
jayrob's Avatar
 
Join Date: Sep 2007
Location: Northern CA, U.S. Astrophotography! (Some of my Photos)
Posts: 9,851
Rep Power: 3922
jayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond reputejayrob has a reputation beyond repute
Default Re: DIY Laser Torch

Quote:
Originally Posted by Abray
Ok I've already fried one diode in this project and have absolutely no idea why. When I checked the current, it either read 1,200 mA or 300 mA or 600 mA, depending on how it was feeling (meaning I have no idea). I had checked and double checked my circuit, and still got an LED. Now I am working on trying to actually make a driver for this so when my two new drives arrive, I can actually NOT fry them! I think my curcuit is ok, even though it seems it only works when it wants to. I just have a problem with the circuit board found within the MXDL. It won't stay put in that metal piece, and this really messes with the battery configuration. Also, where exactly do I need a wire leading back to the negative terminal of the battery? I can't seem to figure this out, and I think this may be a problem too.

I'm not exactly a "noob", but I am having ALOT of trouble with this project. any help?
Abray, this 'Driver Tips' page should help you to see how the ground is connected. The MXDL tail switch, is what connects the body of the MXDL to the negative side of the batteries. So you have to connect the negative side of your driver, to the MXDL case...
Jay
http://www.sonic.net/~jayrob/MXDLDriverTips.doc
__________________
Personal lasers:
(just a few - too many to list) RPL 425, Sypder III Krypton, RPL 35 (473), GLP-473, GLP-593.5, HeNe 632.8,
Many DIY 445, red, blu-ray, green, 635, and 450 builds...


Looking for a DIY kit?


Take a look at some of my more popular kits linked in color...

* FS: 405-G-1 Glass Lens Mod for Blu-ray! 31% increase in power vs AixiZ acrylic!

* FS: New! 1000 Lumen XML-2 Maglite Modification With Voltage Monitor! - Parts or Complete Light! Must see!

* FS: Polished Stainless Steel Green Kit! Easy assembly in minutes!

* FS: Large Maglite Monster Kits! Side Button Forward Clicky! Custom Head Option! Gnarly...


Click here for a list of my build kits! Projects and tutorials too!

jayrob 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/f42/diy-laser-torch-26402.html
Posted By For Type Date
DIY Laser Torch - Laser Pointer Forums - Laser Pointers and Laser ... - Peg It Board This thread Refback 01-04-2013 07:10 PM
Blummin' neighbours!! - Stargazers Lounge This thread Refback 04-18-2011 02:44 PM
Bl**by neighbours!! - Stargazers Lounge This thread Refback 04-18-2011 08:01 AM










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 01:30 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