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Old 11-18-2008, 06:05 AM #177
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

Ive got My backstop about7 feet away and it has the same size burn hole as 7 inches I wana try popping a popcorn seed


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Old 11-18-2008, 06:06 AM #178
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

NO SPREADING AT 7 FEET
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Old 11-18-2008, 06:12 AM #179
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

;D lol, you would choose popcorn! I finaly found that movie. (Real Genius, for those that aren't familiar with the popcorn.)
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Old 11-18-2008, 06:14 AM #180
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

I gotta get coffee
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Old 11-18-2008, 06:16 AM #181
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

WOW! I thought sure you would see degradation at 7ft!
thats awesome!
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Old 11-18-2008, 06:26 AM #182
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

not at all thats why i dont think im worried about znsn lens yet, tomorrow I will try much further when no one is home
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Old 11-18-2008, 06:35 AM #183
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

ok it just burnt the popcorn seed up no pop then i tried with a red kryton and it didnt pop it just smoked
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Old 11-18-2008, 06:43 AM #184
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

oooh, don't forget the bucket full of water! feel free to make some video if you can. Id love to see a 20ft wood burn! 8-)
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Old 11-18-2008, 06:47 AM #185
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

ya I have to have my son video and show me how to get it on here Im looking forward to incaseing this thing with fans key switch some lights and meters all kinds of goodies im also hopeing to make a portable power pack for carry out
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Old 11-18-2008, 06:52 AM #186
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

gees! by the time you get done, its gonna look like a ghost buster's proton pack! [smiley=grin.gif]
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Old 11-18-2008, 06:57 AM #187
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

I just did a 14 foot burn on plywood light colored plywood and ir left 1/4 inch black marks hot spots im sure it would fire paper up easly at that distance
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Old 11-18-2008, 07:08 AM #188
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

amazing! So almost 30% increase at 14ft! This is much better than I had expected. Just think what a 6x beam expander would do for it!
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Old 11-18-2008, 07:27 AM #189
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

we need someone that knows about beam expanders to figure out about how much it would cost to make beam expanders out of znsn lens then we would rockin
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Old 11-18-2008, 12:57 PM #190
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

Yippie!
Got mine today! As disma asked earlier: Have anyone actually measured the current on the laser? The only PS I've got here now is 6A so I figuered if I connect this to the laser in parallell with 30000F that I've got lying around I should be able to start out at 10% or so dutycycle and slowly climb, carefully watching the Amp-meter.
I guess I would wait until next week when I get my real (31,4V 9,7A) PS for this one but I want to finnish the PWM-module so that I can send them off.
As far as my knowledge goes there would be no possible way for this to damage the laser (not going over 6A current-draw) since it wouldn't notice any voltage/current-changes but I'm definitly no expert when it comes to analogue electronics so what do you HAMs think?

Regards
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Old 11-18-2008, 01:59 PM #191
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

I received mine yesterday evening late . It appears to arrived in great shape - *thanks Chris !
I have not tried to power it up yet but I am looking forward to it . I have got to get a PWM and power supply built first.

Thanks
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Old 11-18-2008, 04:52 PM #192
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Default Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS!

two more you guys are gonna love these... Tottish Ive been using that Wallwort 3 volt 300ma it shows about 4volt on the meter for the pwm...and I used two 13.8 alpha gells for the rf supply, the laser kept lasing down to 26 volts off batteries and I played with it alot until I got my 30 volt 12 amp switcing power supply it all seems to work good, Mike and both noticed at lower voltage the rf supply seemed to warm up a little quicker...
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