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 11-24-2008, 02:57 AM #257
Hemlock_Mike's Avatar
Class 4 Laser
 
Join Date: Jan 2007
Location: North Iowa
Posts: 6,184
Rep Power: 4058
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 offline
Class 4 Laser
Hemlock_Mike's Avatar
 
Join Date: Jan 2007
Location: North Iowa
Posts: 6,184
Rep Power: 4058
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 ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS!

Chris -- I agree that the head coil tuning might help but I have to get the PWM under control to limit heating so I have time to tune.
Also, I have to get the power down so I don't burn my power sensor heads.

Mike


__________________
It's a dog's life
Hemlock_Mike is offline   Reply With Quote







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







Old 11-24-2008, 09:30 AM #258
Class 2 Laser
 
Join Date: May 2007
Posts: 285
Rep Power: 14
Comidt is a jewel in the roughComidt is a jewel in the roughComidt is a jewel in the rough
Send a message via MSN to Comidt
Comidt Comidt is offline
Class 2 Laser
 
Join Date: May 2007
Posts: 285
Rep Power: 14
Comidt is a jewel in the roughComidt is a jewel in the roughComidt is a jewel in the rough
Send a message via MSN to Comidt
Default Re: GB ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS!

So, for the all in one kit, is it completely ready to use?
I am very interested in acquiring one of these.
Is the PWM to cycle the laser on and off, or what is it for?
Comidt is offline   Reply With Quote
Old 11-24-2008, 02:53 PM #259
Member
 
Join Date: Nov 2008
Posts: 34
Rep Power: 0
Tottish is on a distinguished road
Tottish Tottish is offline
Member
 
Join Date: Nov 2008
Posts: 34
Rep Power: 0
Tottish is on a distinguished road
Default Re: GB ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS!

Comidt:
The priceing on page one (US$300+shipping) is for one lasertube and the driver for it. What you will have to aquire yourself is a PowerSupply that suits your countrys "wallplug-Voltage" and can output about 30V (stableised) and about 15Ampere.
The PWM is for adjusting the power to the laser, however it seems you could use it as an on/off switch by just applying about 5V on the PWM input for full power and 0V for no power. I don't think it is recomended, though. I seem to remember reading (scan back and read the entire thread) that 95% dutycycle is the best choice and not the 100% that you get when simply applying 5V.

/Tottish
Tottish is offline   Reply With Quote
Old 11-24-2008, 03:15 PM #260
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 ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS!

Comidt, thanks for the compliment on my laser box Ive been running about 4 volts into my pwm with a wall type power supply. and for the main amp{power supplyer} to the laser I run 30 volts 13amps thats what its drawing so like Tottish said 15 amp power supply would be perfect and 28 t0 30 volts and youll be burning holes in all kinds of stuff including your thumbs lol ;D
nightstick is offline   Reply With Quote
Old 11-24-2008, 04:14 PM #261
Member
 
Join Date: Oct 2008
Location: Fayetteville GA
Posts: 38
Rep Power: 0
spikec is on a distinguished road
spikec spikec is offline
Member
 
Join Date: Oct 2008
Location: Fayetteville GA
Posts: 38
Rep Power: 0
spikec is on a distinguished road
Default Re: GB ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS!

Nightstick, nice build! What brand/model PS is on the back of the case?
spikec is offline   Reply With Quote
Old 11-24-2008, 04:33 PM #262
Class 2 Laser
 
Join Date: May 2007
Posts: 285
Rep Power: 14
Comidt is a jewel in the roughComidt is a jewel in the roughComidt is a jewel in the rough
Send a message via MSN to Comidt
Comidt Comidt is offline
Class 2 Laser
 
Join Date: May 2007
Posts: 285
Rep Power: 14
Comidt is a jewel in the roughComidt is a jewel in the roughComidt is a jewel in the rough
Send a message via MSN to Comidt
Default Re: GB ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS!

Ok, great.
I can get a power supply pretty easily.
I have read the thread and saw the dutycycle info. Would it be possible to purchase one of your controllers Tottish? They look good.

So is this the TTL thing found on labbies and laser show type lasers?
Your box is great Nightstick
So you're just applying a straight 4 volts into the PWM? What cycle is that? Do you know?
How powerful are these lasers actually, I know they're around 10W? I have fiddled with 200mW Greenies before and they really aren't that powerful. I don't want to buy this laser FOR burning things, rather to learn and investigate more, but it would be nice to be able to burn a few things when needed
What kind of things can you burn/ puncture?

Is there anywhere I can go to read up more about RF excited lasers? I've read most of Sam's Laser FAQ, but there wasn't too much on RF lasers. I just like to know about things before using/ buying them.

Thanks all
Comidt is offline   Reply With Quote
Old 11-24-2008, 07:24 PM #263
Member
 
Join Date: Nov 2008
Posts: 34
Rep Power: 0
Tottish is on a distinguished road
Tottish Tottish is offline
Member
 
Join Date: Nov 2008
Posts: 34
Rep Power: 0
Tottish is on a distinguished road
Default Re: GB ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS!

Comidt:
"So you're just applying a straight 4 volts into the PWM? What cycle is that? Do you know?"
This would represent a 100% duty-cycle. The picture on my Oscope on the previous page represents about 50%. Look up PWM on Wikipedia and you'll get the hang of it.
About the PWM-module; Just talk to Chris (heruursciences) about it and he'll hook you up with one. That goes for all you guys who want one. Chris handles the US-distribution of the modules so talk to him about it.
I can't help you with your other queries since I'm pretty much a newbie on this laser-stuff.

/Tottish

Tottish is offline   Reply With Quote
Old 11-24-2008, 08:04 PM #264
Class 2 Laser
 
Join Date: May 2007
Posts: 285
Rep Power: 14
Comidt is a jewel in the roughComidt is a jewel in the roughComidt is a jewel in the rough
Send a message via MSN to Comidt
Comidt Comidt is offline
Class 2 Laser
 
Join Date: May 2007
Posts: 285
Rep Power: 14
Comidt is a jewel in the roughComidt is a jewel in the roughComidt is a jewel in the rough
Send a message via MSN to Comidt
Default Re: GB ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS!

Ok, thanks very much.
I have a small understanding of PWM's but I'll go and read up on it.
Could this laser be used for engraving? Also, would I need to get a collimating lens if I wanted to use it over a greater distance, or is the divergence not too bad?
Comidt is offline   Reply With Quote
Old 11-24-2008, 08:49 PM #265
Member
 
Join Date: Nov 2008
Posts: 34
Rep Power: 0
Tottish is on a distinguished road
Tottish Tottish is offline
Member
 
Join Date: Nov 2008
Posts: 34
Rep Power: 0
Tottish is on a distinguished road
Default Re: GB ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS!

Since most of the units seem to be 10W+ you should be able to do some simple engraving with it. Wattage-requirements for diffrent kind of material-processing is listed at Sams laser FAQ. If you want to use it for engraving you would need a focusing lens. Talk to Chris about it and he'll hook you up with a ZnSe-lens.

Earlier in this thread I'm pretty sure someone measured a 30% bigger dot at 7ft so the spreading is not too bad depending on what you are comparing it to, of course.

/Tottish
Tottish is offline   Reply With Quote
Old 11-24-2008, 09:44 PM #266
Class 1M Laser
 
Join Date: Sep 2007
Location: Stockholm, Sweden
Posts: 104
Rep Power: 10
dar303 is on a distinguished road
dar303 dar303 is offline
Class 1M Laser
 
Join Date: Sep 2007
Location: Stockholm, Sweden
Posts: 104
Rep Power: 10
dar303 is on a distinguished road
Default Re: GB ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS!

Heuur: I have another model of Synrad RF-excited laser (48-1) that outputs 16W and draws about 7A at 30V. Is that just a more efficient design or is yours out of tune (retunable?) or has been used and lost some of its power?
dar303 is offline   Reply With Quote
Old 11-24-2008, 11:07 PM #267
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 ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS!

Spikec. the power supply is a Lambda 28 volt 12 amp I sent you a pm with a little more info, thanks for the complement
nightstick is offline   Reply With Quote
Old 11-24-2008, 11:49 PM #268
Class 2M Laser
 
Join Date: Feb 2008
Posts: 731
Rep Power: 26
heruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud of
heruursciences heruursciences is offline
Class 2M Laser
 
Join Date: Feb 2008
Posts: 731
Rep Power: 26
heruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud ofheruursciences has much to be proud of
Default Re: GB ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS!

Synrad 48 and firestar series laser are excited directly by an internal antenna, so the RF feild doesen't have to penetrate a thick dielectric tube, that alone saves about 25% on energy cost. They also run at a higher frequency of 48mhz and that helps the gas ionize easier too. Also thay have a resonant H bridge antenna circuit that creates a quadrapole discharge field that causes a near uniform glow discharge in the bore, as well as other tricks such as a unique gas mixture and excellent heatsinking...

In short those synrad black box lasers are a lot more efficient... and expensive...
heruursciences is offline   Reply With Quote
Old 11-25-2008, 12:04 AM #269
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 ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS!

ok, I just tried out my 18650gr pack, it is 8 x 18650gr cells in series, I dont know if these are in sad shape, or if this is typical of these cells, but with the pack at 31v, when I fire the system up, it draws 5 amps, (300ma on standby) and the voltage dropped to 18v!! ;D It still burns, and works at this low level which really is surprising! I guess Ill have to use those gel cells after all...
Attached Files
File Type: mov tearin_up_a_benadryl_bottle.MOV (1.91 MB, 82 views)
disma is offline   Reply With Quote
Old 11-25-2008, 12:21 AM #270
Hemlock_Mike's Avatar
Class 4 Laser
 
Join Date: Jan 2007
Location: North Iowa
Posts: 6,184
Rep Power: 4058
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 offline
Class 4 Laser
Hemlock_Mike's Avatar
 
Join Date: Jan 2007
Location: North Iowa
Posts: 6,184
Rep Power: 4058
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 ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS!

Disma -- are those protected cells? I've heard that those cells can output more. Not sure if I believe that.
You need much more than 5 amps. I'm surprised you get some burn.

Mike
__________________
It's a dog's life
Hemlock_Mike is offline   Reply With Quote
Old 11-25-2008, 12:52 AM #271
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 ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS!

ya, they are protected, I was hoping it would at least do 8 or 9 amps... oh well
disma is offline   Reply With Quote
Old 11-25-2008, 01:03 AM #272
Hemlock_Mike's Avatar
Class 4 Laser
 
Join Date: Jan 2007
Location: North Iowa
Posts: 6,184
Rep Power: 4058
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 offline
Class 4 Laser
Hemlock_Mike's Avatar
 
Join Date: Jan 2007
Location: North Iowa
Posts: 6,184
Rep Power: 4058
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 ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS!

D -- You may need 16 cells series / parallel. I don't know what the protection circuit can do. I'm still working on the RF part. And recoating my burned out sensor heads

Mike
__________________
It's a dog's life
Hemlock_Mike 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 05:33 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