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 > Group Buys



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



Reply
 
LinkBack Thread Tools Display Modes
Old 11-16-2008, 09:41 PM #113
Class 2M Laser
 
Join Date: Sep 2007
Posts: 526
Rep Power: 12
disma is on a distinguished road
disma disma is offline
Class 2M Laser
 
Join Date: Sep 2007
Posts: 526
Rep Power: 12
disma is on a distinguished road
Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

Heres another circuit, this ones a little simpler to read.
I guess pins 5 and 7 arent used?
Attached Thumbnails
PLUG & PLAY CO2 BURNING LASERS only 0 DELIVERED-pwm.gif  


disma is offline   Reply With Quote







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







Old 11-16-2008, 10:12 PM #114
Hemlock_Mike's Avatar
Class 4 Laser
 
Join Date: Jan 2007
Location: North Iowa
Posts: 6,187
Rep Power: 4528
Hemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond repute
Hemlock_Mike Hemlock_Mike is online now
Class 4 Laser
Hemlock_Mike's Avatar
 
Join Date: Jan 2007
Location: North Iowa
Posts: 6,187
Rep Power: 4528
Hemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond repute
Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

Disma --

About the same circuit. It is recommended to bypass pin 5 -- especially in a RF environment.

Mike
__________________
It's a dog's life
Hemlock_Mike is online now   Reply With Quote
Old 11-16-2008, 10:21 PM #115
Class 2M Laser
 
Join Date: Sep 2007
Posts: 526
Rep Power: 12
disma is on a distinguished road
disma disma is offline
Class 2M Laser
 
Join Date: Sep 2007
Posts: 526
Rep Power: 12
disma is on a distinguished road
Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

ok, cool, I wasn't quite sure of it.. I haven't built either one yet... so put a cap to ground on pin 5. like in the other schematic, I thought this one might be a little easier to read for some people, you don't really need the second pot either... (r2)

I was thinking that if you did modulate it like a machine gun, it would definitely be audible when the beam hits its target. It would be a strange sound.
disma is offline   Reply With Quote
Old 11-16-2008, 10:34 PM #116
Class 1M Laser
 
Join Date: Nov 2008
Posts: 173
Rep Power: 9
nightstick is on a distinguished road
nightstick nightstick is offline
Class 1M Laser
 
Join Date: Nov 2008
Posts: 173
Rep Power: 9
nightstick is on a distinguished road
Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

I will caution again!!! I beleive Chris allready did... DONT TOUCH THE COPPER ANTENNA while burning.. instant sizzle on the thumb Im branded lol wow You would think a Ham radio operator would know better ooh those rf burns kinda stay with you a while :'(
nightstick is offline   Reply With Quote
Old 11-16-2008, 10:36 PM #117
lasersbee's Avatar
Class 4 Laser
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,793
Rep Power: 42688
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: 15,793
Rep Power: 42688
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 Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

Quote:
Originally Posted by Hemlock Mike
Disma --

About the same circuit. *It is recommended to bypass pin 5 -- *especially in a RF environment.

Mike
The circuit is not quite the same... *
The first circuit uses pin #7 as the output and only one pot..
while the 2nd circuit uses pin#3 as the output and 2 pots.. :

At 24khz I don't think you would hear it unless there was some lower harmonic frequency
generated..
__________________

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 11-16-2008, 10:48 PM #118
Class 2M Laser
 
Join Date: Sep 2007
Posts: 526
Rep Power: 12
disma is on a distinguished road
disma disma is offline
Class 2M Laser
 
Join Date: Sep 2007
Posts: 526
Rep Power: 12
disma is on a distinguished road
Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

yep, I was referring to the microprocessor controlled circuit. Although, you could just run this pwm circuit at an audio frequency and you would definitely hear it, as a matter of fact it would probably be so loud it would be very uncomfortable! it would just be strange to hear sound from the beams impact. It would be much louder from the laser itself. Anyone taken any video or pics of it yet? :-?
disma is offline   Reply With Quote
Old 11-16-2008, 11:09 PM #119
Class 1M Laser
 
Join Date: Nov 2008
Posts: 173
Rep Power: 9
nightstick is on a distinguished road
nightstick nightstick is offline
Class 1M Laser
 
Join Date: Nov 2008
Posts: 173
Rep Power: 9
nightstick is on a distinguished road
Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

it cooks bologna really fast ;D
nightstick is offline   Reply With Quote
Old 11-16-2008, 11:19 PM #120
Hemlock_Mike's Avatar
Class 4 Laser
 
Join Date: Jan 2007
Location: North Iowa
Posts: 6,187
Rep Power: 4528
Hemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond repute
Hemlock_Mike Hemlock_Mike is online now
Class 4 Laser
Hemlock_Mike's Avatar
 
Join Date: Jan 2007
Location: North Iowa
Posts: 6,187
Rep Power: 4528
Hemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond repute
Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

Breadboard one circuit and watch it on your Oscope. *Then try the other to see which one suits your needs. *Pins 3 and 7 are almost the same output but may be inverted. *Pin 3 can act as a discharge as well as 7.
I agree that 24 kHz is a bit above my hearing range !! *Might be fun to try a lower freq *;D

I spoke with Chris about voltage input....... *The RF supply likes the upper end (~32 volts) rather than lower. *I noticed that the power supply heatsink warms faster as the input voltage drops. *Appears to be higher I^2R losses. *As my gell cells peter out, the power drops quickly and that heatsink warms faster. *The power supply appears to need greater fan cooling. *

Mike

OH another thing..... *Those copper strips appear to be a tuned split 1/16 wave dipole antenna on the plasma tube. *Voltages at the high impedance points could exceed 1,000 Volts. *As most HAMS know, RF burns are a B1Tch *
__________________
It's a dog's life
Hemlock_Mike is online now   Reply With Quote
Old 11-16-2008, 11:24 PM #121
Class 1M Laser
 
Join Date: Nov 2008
Posts: 173
Rep Power: 9
nightstick is on a distinguished road
nightstick nightstick is offline
Class 1M Laser
 
Join Date: Nov 2008
Posts: 173
Rep Power: 9
nightstick is on a distinguished road
Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

Mike Im laughin now but wasnt earlyer :
nightstick is offline   Reply With Quote
Old 11-16-2008, 11:44 PM #122
Class 1M Laser
 
Join Date: Nov 2008
Posts: 173
Rep Power: 9
nightstick is on a distinguished road
nightstick nightstick is offline
Class 1M Laser
 
Join Date: Nov 2008
Posts: 173
Rep Power: 9
nightstick is on a distinguished road
Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

I should be able to turn my 28 volt lambda power supply up to 30 volts Im hopeing but I also notice the mo warmer for lower voltage it like a starving ampplifyer
nightstick is offline   Reply With Quote
Old 11-17-2008, 01:44 AM #123
Hemlock_Mike's Avatar
Class 4 Laser
 
Join Date: Jan 2007
Location: North Iowa
Posts: 6,187
Rep Power: 4528
Hemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond repute
Hemlock_Mike Hemlock_Mike is online now
Class 4 Laser
Hemlock_Mike's Avatar
 
Join Date: Jan 2007
Location: North Iowa
Posts: 6,187
Rep Power: 4528
Hemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond repute
Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

Nightstick --
You have expressed the idea correctly in "down home" terms ;D
I will be using a bank of 18650's for short runs. I think they will put out 10 Amps for those quick demos.

Mike
__________________
It's a dog's life
Hemlock_Mike is online now   Reply With Quote
Old 11-17-2008, 01:58 AM #124
Hemlock_Mike's Avatar
Class 4 Laser
 
Join Date: Jan 2007
Location: North Iowa
Posts: 6,187
Rep Power: 4528
Hemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond repute
Hemlock_Mike Hemlock_Mike is online now
Class 4 Laser
Hemlock_Mike's Avatar
 
Join Date: Jan 2007
Location: North Iowa
Posts: 6,187
Rep Power: 4528
Hemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond repute
Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

On the PWM circuit I provided earlier ----

I'm using:
R1 * 10K Ohm pot
C1 * *.01 and .022 Mfd caps in series
R2 * *820 Ohm *- This may have to be adjusted down to supply 20 mA drive current when connected to the power supply. Update: a 180 or 220 Ohm resistor shouls work here to drive it.

With this RC timing circuit *-- My old junk box parts, *I read 23 to 25 Khz output on my freq counter. *The O'scope shows a good square wave going from ~ 1% to near 98%. *

There are two similar circuits for basic pot controled PWM drivers posted here. *try them both and report your results. *The programable controlers being designed here will be super for specality drivers involved in engraving etc.

These kits may be outputting a little more than reported. *Be Careful.....

Mike
__________________
It's a dog's life
Hemlock_Mike is online now   Reply With Quote
Old 11-17-2008, 02:26 AM #125
Class 1M Laser
 
Join Date: Nov 2008
Posts: 173
Rep Power: 9
nightstick is on a distinguished road
nightstick nightstick is offline
Class 1M Laser
 
Join Date: Nov 2008
Posts: 173
Rep Power: 9
nightstick is on a distinguished road
Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

Ok Mike I was thinking of using 18650s I have a bunch from a lap top that would be much lighter than these gells for show and tell at work 8-)
nightstick is offline   Reply With Quote
Old 11-17-2008, 02:31 AM #126
Class 2M Laser
 
Join Date: Sep 2007
Posts: 526
Rep Power: 12
disma is on a distinguished road
disma disma is offline
Class 2M Laser
 
Join Date: Sep 2007
Posts: 526
Rep Power: 12
disma is on a distinguished road
Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

Thanks Mike! you made my experimenting with components less work, now I know what to dig out of the parts bin! I don't have freq counter. So, about .007uf for c1?
disma is offline   Reply With Quote
Old 11-17-2008, 02:31 AM #127
Hemlock_Mike's Avatar
Class 4 Laser
 
Join Date: Jan 2007
Location: North Iowa
Posts: 6,187
Rep Power: 4528
Hemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond repute
Hemlock_Mike Hemlock_Mike is online now
Class 4 Laser
Hemlock_Mike's Avatar
 
Join Date: Jan 2007
Location: North Iowa
Posts: 6,187
Rep Power: 4528
Hemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond repute
Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

Those are the cells used in many hybred cars. *I intend to use them for short duty cycles. *I think they can output 10 Amps for a few seconds at a time. *That's all I need !!! * I haven't found any ratings but they hold a BUNCH of power.

Mike

Test the used cells for "balance" you don't want to overheat one
__________________
It's a dog's life
Hemlock_Mike is online now   Reply With Quote
Old 11-17-2008, 04:15 AM #128
Hemlock_Mike's Avatar
Class 4 Laser
 
Join Date: Jan 2007
Location: North Iowa
Posts: 6,187
Rep Power: 4528
Hemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond repute
Hemlock_Mike Hemlock_Mike is online now
Class 4 Laser
Hemlock_Mike's Avatar
 
Join Date: Jan 2007
Location: North Iowa
Posts: 6,187
Rep Power: 4528
Hemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond reputeHemlock_Mike has a reputation beyond repute
Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

I was looking for a .006 to .007 !! Should be in the ball park what with tollerances and all.

Mike
__________________
It's a dog's life
Hemlock_Mike is online now   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 01:27 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