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 05-09-2009, 02:49 PM #1
jaycey's Avatar
Class 2 Laser
 
Join Date: Apr 2009
Location: London
Posts: 482
Rep Power: 24
jaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud of
jaycey jaycey is offline
Class 2 Laser
jaycey's Avatar
 
Join Date: Apr 2009
Location: London
Posts: 482
Rep Power: 24
jaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud of
Default Help needed to locate petentiometer

Hi guys, I have built a DDL driver for my laser and its working but my petentiometer is no good for the purpose (bluray diode)

I have a Maplins nearbye can someone take a look at their catalogue for me and point me to suitable items.

Here... http://www.maplin.co.uk/Search.aspx?menuno=12464

Thanks


jaycey is offline   Reply With Quote







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







Old 05-09-2009, 02:53 PM #2
XCreedX's Avatar
Class 2 Laser
 
Join Date: Jul 2008
Location: SC
Posts: 347
Rep Power: 38
XCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond repute
XCreedX XCreedX is offline
Class 2 Laser
XCreedX's Avatar
 
Join Date: Jul 2008
Location: SC
Posts: 347
Rep Power: 38
XCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond repute
Default

Well, you will want a 100 ohm pot at the max, so just choose a trimmer, i like the square 22-turn pots, their small and very precise. That catalog doesn't offer a 100 ohm version though, so check the store and see if they have one, if not just pickup a 100 ohm trimmer.
XCreedX is offline   Reply With Quote
Old 05-09-2009, 03:18 PM #3
Asherz's Avatar
Class 3R Laser
 
Join Date: Jan 2009
Location: United Kingdom
Posts: 1,627
Rep Power: 64
Asherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond repute
Asherz Asherz is offline
Class 3R Laser
Asherz's Avatar
 
Join Date: Jan 2009
Location: United Kingdom
Posts: 1,627
Rep Power: 64
Asherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond repute
Default

Hi,

Unfortunatly I'm in the UK so no radioshack But lasers arn't illegal here completely so I guess thats a bonus :P (touch wood)

I use either this in the 1k version: http://www.maplin.co.uk/Module.aspx?ModuleNo=2202

or this 100ohm single turn pot: http://www.maplin.co.uk/Module.aspx?ModuleNo=6499

The only problem with the 100ohm version of that single turn is that it's round and it's a pain in the arse to put onto a piece of strip board because the drivers designed for the square pots and I could never work out where to put the pins on the round one

Good luck.
Asherz is offline   Reply With Quote
Old 05-09-2009, 03:32 PM #4
lasersbee's Avatar
Class 4 Laser
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,837
Rep Power: 44598
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
lasersbee lasersbee is offline
Class 4 Laser
lasersbee's Avatar
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,837
Rep Power: 44598
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
Default

Don't use a single turn 1000 Ohm (1K) pot... use a single turn 100 Ohm
pot or a 22 turn 1K pot or an 18 turn 500 Ohm pot for finer control of
the output current...

Jerry
__________________

J.BAUER Electronics Home Page

LaserBee Laser Power Meter Products meet your needs
at affordable Prices:
See them all here on LPF

LaserBee Power Meter products ALWAYS in Stock
and ready to ship

Also available on eBay:Check availability here..

Subsidary: Pharma Electronic Solutions


This banner is available to and can be copied/used FREE by any LaserBee owner

Last edited by lasersbee; 05-09-2009 at 03:36 PM.
lasersbee is offline   Reply With Quote
Old 05-09-2009, 03:47 PM #5
Asherz's Avatar
Class 3R Laser
 
Join Date: Jan 2009
Location: United Kingdom
Posts: 1,627
Rep Power: 64
Asherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond repute
Asherz Asherz is offline
Class 3R Laser
Asherz's Avatar
 
Join Date: Jan 2009
Location: United Kingdom
Posts: 1,627
Rep Power: 64
Asherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond repute
Default

that one in the link is a 22 turn 1k laserbee do you know the pin config of a round pot in comparison to a sqaure pot? how would you use the round one isntead of the square?
Asherz is offline   Reply With Quote
Old 05-09-2009, 04:08 PM #6
rog8811's Avatar
Class 3B Laser
 
Join Date: Jul 2007
Location: Berkshire UK
Posts: 2,749
Rep Power: 193
rog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond repute
rog8811 rog8811 is offline
Class 3B Laser
rog8811's Avatar
 
Join Date: Jul 2007
Location: Berkshire UK
Posts: 2,749
Rep Power: 193
rog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond repute
Default

The thing to remember with the 1k multi turn pot is that all the adjustment is right at one end of the pot so go carefully.

First picture shows difference between 100ohm and 1k pot.
Second one shows single turn trim pot connection compared to multiturn.

Regards rog8811
Attached Thumbnails
Help needed to locate petentiometer-1k-100r.jpg   Help needed to locate petentiometer-pot-comp01.jpg  
__________________
See all of my videos on Vimeo
http://www.vimeo.com/4454150

Lots of tutorials and information on lasers
http://www.rog8811.com/

In the land of the blind the one eyed man..... is most likely holding the laser
rog8811 is offline   Reply With Quote
Old 05-09-2009, 04:12 PM #7
XCreedX's Avatar
Class 2 Laser
 
Join Date: Jul 2008
Location: SC
Posts: 347
Rep Power: 38
XCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond repute
XCreedX XCreedX is offline
Class 2 Laser
XCreedX's Avatar
 
Join Date: Jul 2008
Location: SC
Posts: 347
Rep Power: 38
XCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond repute
Default

Their basicly the same all you need to do is really connect the pins here are the diagram



9V simply means the PSU and if you use a switch well wire it before you hit the pot, basically your power is the middle pin and you can use either side pin, the side pins simply reverse current to either side. then take the side pin wire and run it to your motor or in your driver.
XCreedX is offline   Reply With Quote
Old 05-09-2009, 04:13 PM #8
XCreedX's Avatar
Class 2 Laser
 
Join Date: Jul 2008
Location: SC
Posts: 347
Rep Power: 38
XCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond repute
XCreedX XCreedX is offline
Class 2 Laser
XCreedX's Avatar
 
Join Date: Jul 2008
Location: SC
Posts: 347
Rep Power: 38
XCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond reputeXCreedX has a reputation beyond repute
Default

Rofl rog, i was just making a diagram and you posted that
XCreedX is offline   Reply With Quote
Old 05-09-2009, 08:43 PM #9
jaycey's Avatar
Class 2 Laser
 
Join Date: Apr 2009
Location: London
Posts: 482
Rep Power: 24
jaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud of
jaycey jaycey is offline
Class 2 Laser
jaycey's Avatar
 
Join Date: Apr 2009
Location: London
Posts: 482
Rep Power: 24
jaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud of
Default

I fear I have killed my diodes....all 4 of them! (BluRays)

I picked up a 50ohm Sub-Miniature Fully EnclosedCarbon Preset Potentiometer

Hooked it all up with a 10ohm resistor and started turning it up...slowly (didnt have enough diodes for a test circuit!)

All of a sudden it went super bright and then dimmed and stayed like that, the 10ohm resistor gets very..very hot?

Now I still get a dull purple beam but thats it.

My setup is DDL driver, 50ohm pot as above, 10ohm resistor and powered by 11.1V 430mah LiPo

Any ideas why the 10ohm resistor is getting so hot?
jaycey is offline   Reply With Quote
Old 05-09-2009, 09:08 PM #10
lasersbee's Avatar
Class 4 Laser
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,837
Rep Power: 44598
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
lasersbee lasersbee is offline
Class 4 Laser
lasersbee's Avatar
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,837
Rep Power: 44598
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
Default

That's a bummer....

Yeah... 4 Blu-Rays are definitely cheaper than 6 1N4001 Diodes (Test Load)...
Good choice... Sorry that the Test Load info hasn't been posted before...

Jerry
__________________

J.BAUER Electronics Home Page

LaserBee Laser Power Meter Products meet your needs
at affordable Prices:
See them all here on LPF

LaserBee Power Meter products ALWAYS in Stock
and ready to ship

Also available on eBay:Check availability here..

Subsidary: Pharma Electronic Solutions


This banner is available to and can be copied/used FREE by any LaserBee owner
lasersbee is offline   Reply With Quote
Old 05-09-2009, 09:09 PM #11
jaycey's Avatar
Class 2 Laser
 
Join Date: Apr 2009
Location: London
Posts: 482
Rep Power: 24
jaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud of
jaycey jaycey is offline
Class 2 Laser
jaycey's Avatar
 
Join Date: Apr 2009
Location: London
Posts: 482
Rep Power: 24
jaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud of
Default

hmmm...the laser is still lasing but only when the petentiometer reaches its furthest point, its either on or off nothing in between?

wander if it is the diode or the pot thats fried?
jaycey is offline   Reply With Quote
Old 05-09-2009, 09:12 PM #12
jaycey's Avatar
Class 2 Laser
 
Join Date: Apr 2009
Location: London
Posts: 482
Rep Power: 24
jaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud of
jaycey jaycey is offline
Class 2 Laser
jaycey's Avatar
 
Join Date: Apr 2009
Location: London
Posts: 482
Rep Power: 24
jaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud ofjaycey has much to be proud of
Default

couldnt get hold of any more 1n4001's I only got 4 not 6.

The blurays didnt cost me a penny...thats why I wasnt too bothered about them.
jaycey is offline   Reply With Quote
Old 05-09-2009, 09:34 PM #13
rog8811's Avatar
Class 3B Laser
 
Join Date: Jul 2007
Location: Berkshire UK
Posts: 2,749
Rep Power: 193
rog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond repute
rog8811 rog8811 is offline
Class 3B Laser
rog8811's Avatar
 
Join Date: Jul 2007
Location: Berkshire UK
Posts: 2,749
Rep Power: 193
rog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond reputerog8811 has a reputation beyond repute
Default

Use one of the dead LD's as a load, put a 1ohm resistor between the driver and the positive leg of the LD and test the circuit, when you turn the pot you should get a smooth increase in mv up to 125mv, if it goes higher than that it will explain the hot resistor.
If wired incorrectly the LM317 can supply 1.5A which will kill any LD.

Regards rog8811
__________________
See all of my videos on Vimeo
http://www.vimeo.com/4454150

Lots of tutorials and information on lasers
http://www.rog8811.com/

In the land of the blind the one eyed man..... is most likely holding the laser
rog8811 is offline   Reply With Quote
Old 05-10-2009, 04:49 PM #14
BuildAbluraylaser's Avatar
Class 2M Laser
 
Join Date: Mar 2009
Location: Montreal, Quebec, Canada
Posts: 881
Rep Power: 79
BuildAbluraylaser has a reputation beyond reputeBuildAbluraylaser has a reputation beyond reputeBuildAbluraylaser has a reputation beyond reputeBuildAbluraylaser has a reputation beyond reputeBuildAbluraylaser has a reputation beyond reputeBuildAbluraylaser has a reputation beyond reputeBuildAbluraylaser has a reputation beyond reputeBuildAbluraylaser has a reputation beyond reputeBuildAbluraylaser has a reputation beyond reputeBuildAbluraylaser has a reputation beyond reputeBuildAbluraylaser has a reputation beyond repute
BuildAbluraylaser BuildAbluraylaser is offline
Class 2M Laser
BuildAbluraylaser's Avatar
 
Join Date: Mar 2009
Location: Montreal, Quebec, Canada
Posts: 881
Rep Power: 79
BuildAbluraylaser has a reputation beyond reputeBuildAbluraylaser has a reputation beyond reputeBuildAbluraylaser has a reputation beyond reputeBuildAbluraylaser has a reputation beyond reputeBuildAbluraylaser has a reputation beyond reputeBuildAbluraylaser has a reputation beyond reputeBuildAbluraylaser has a reputation beyond reputeBuildAbluraylaser has a reputation beyond reputeBuildAbluraylaser has a reputation beyond reputeBuildAbluraylaser has a reputation beyond reputeBuildAbluraylaser has a reputation beyond repute
Default

Good source for electronic components : www.digikey.com
__________________


Visit my photography thread! (link)
BuildAbluraylaser 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











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 07:43 PM.


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