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Old 11-17-2008, 06:49 PM #129
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

got my lasers! [smiley=2vrolijk_08.gif] Thanks Chris! I think his name is really Chris Kringle! ;D Man, these were packed so well, it took me 30 minutes to get it unpacked trying to be real careful. Soon as I get my pwm circuit built, ill post some pics in the multimedia section.



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Old 11-17-2008, 07:47 PM #130
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

Disma ---

There isn't much to show except stuff burning

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Old 11-17-2008, 09:15 PM #131
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

lol, well, I made some videos, no one wants to see?
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Old 11-17-2008, 09:32 PM #132
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

Videos --- Now that will show the POP & FIRE !!

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Old 11-17-2008, 09:43 PM #133
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

Hey Mike, have you measured the current draw from your laser yet? The power supply I tested mine with only provides 29v @ 7 amps... I'm kinda worried, it might be bad for the laser to not have the current it needs. Although it makes a NICE hole through a 2 inch piece of styrofoam VERY fast! I was surprised it went all the way through like that, I am useing a metal power supply cover as a beam stop. It really does burn white paper instantly! 8-)
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Old 11-17-2008, 11:03 PM #134
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

Should i do a round 2 group buy?!!
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Old 11-18-2008, 12:31 AM #135
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

yes Chris I wana make a double barrel ray gun ;D
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Old 11-18-2008, 12:46 AM #136
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

;D ROFL!

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Old 11-18-2008, 01:05 AM #137
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

Disma How ya doin, and congrats on getting your Babys how do you like them? I got my power supply today Ive got it set at 30 volts aprox 10/11 amps and running a 3volt 300ma wallwort to the pmw burns like a banchi
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Old 11-18-2008, 01:08 AM #138
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

also about 30 sec and it drilled over half way through 1/4 inch plywood and didnt get hot this is good no?
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Old 11-18-2008, 01:17 AM #139
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

Chris --
Will round 2 be lower priced now that we have volume buy??
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Old 11-18-2008, 01:42 AM #140
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

Be careful where the beam goes when it burns through the target. No crap here. I've been there too often.

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Old 11-18-2008, 01:53 AM #141
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

Mike I understand couch burner, I have a question when we go to mounting should we isolate every thing metal from the laser and the amp as to keep the laser in tune I guess im saying to keep the swr down thanks lynn
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Old 11-18-2008, 02:09 AM #142
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

Thats a VERY good question, I was just sitting here thinking about how I was gonna mount it all, I think Ill try a pvc pipe if I cant find anything else suitable. At least its plastic, and might make an interesting looking laser. I was also a little worried about stable mounting effecting the alignment of the laser.


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Old 11-18-2008, 02:12 AM #143
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

According to Chris, Isolation of the heatsinks is needed unless you can tune the "transmitter" to the antenna. I've tuned antennas for years but this is a special case. Even shortening the coax feed can change the tuning.
1/4 wave and 1/2 wave coax lengths cause wierd problems in High Freq circuits. Stray capacity between source and load have to be accounted for. I'm being careful here.

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Old 11-18-2008, 02:16 AM #144
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

thats what I thought also Im gona use your idea with plexi glass for attaching anything together
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