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Re: GB ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS! Yeah Mike, thats just what I've been told, RF is a bitch >:( . I'm however new to the phenomenon but at least I have a good O-scope so that I can test if my "improvements" help. So what do you think about getting the PWM-cable shielded? Is it...

Re: GB ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS! nightstick: No probs man, I would build one for myself anyways. About running at a 18650: It shouldn't be a problem, The processor works down to 2V so the question is how much voltage you would need over the optocoupler (and resistor) for it to...

Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS! Hey, be careful with those Li-ion-cells guys. Remember that a fully charged Li-ion-cell (eg 18650) usually puts out about 4,2V when fully charged. Although... If you use seven cells that would nominally put out 25,9V they would put out about...

Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS! OK, then I'll just charge a couple of Lead-acidcells overnight and try it with them tomorrow. Thanks for the heads up! /Tottish

Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS! Sounds good nightstick but I was wondering if anyone had hooked up an amp-meter between their power-source and the laser-driver. For the wall-wort 50ma or so is probably sufficient. After all it is only used to light up a small IR-LED. :) /Tottish

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 30000µF that I've got lying around I...

Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS! Yeah, that looks like good one Mike. Shouldn't be to hard to put on a breadboard. What's better with the microcontroller-solution is that it requires (much) fewer components, takes up (much) less space and is probably cheaper and much more...

Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS! OK! I'll start programming tomorrow and keep you guys posted then! /Tottish EDIT: What type of regulation input method would you prefer heruusiences? Turning-knob?

Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS! Thanks heruursciences! Ill just run mine on 31,4 and the PS I ordered can output 9,7A. Hope that's sufficient to max-out this laser. nightstick: Yeah the wallwort should be fine, then. About the PWM... I will build one for myself so I might as...

Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS! Some thoughts about the electrical specifications: Someone wrote: "I tied two alpha gells together only about 26/27 volts burns through paper..." 1. I guess this comment is indicating that the output-power would depend on the input-voltage. Is...

Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS! Aha! So normal glass pretty much blocks the beam completely? What about Acrylic plastic? I guess it's not completely transparent since you can engrave it. If Acrylic would work maybe I should mill myself a couple of protection glasses... ;D...

Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS! Soooo... The expected shippingdate was two days ago... Are the lasers on their way yet? Is it time to start running like an anxious kid to the mailbox every time you can hear the mailman? :) /Tottish

Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS! Hm, does someone know the tolerance for the input voltage? 28 +/- 1 volt? Would be nice to know when designing the PSU for the laserdriver. Can't wait to give this baby a spin on my CNC-router! /Tottish

Re: GB FEELER Small RF 5-10W CO2 LASERS! CHEAP! Hello! I was pointed here by a fellow forum-member in Sweden and I am interested in a laser+driver. I have a few questions about the laser though. I'm a complete novice when it comes to lasers (though I have been reading quite a bit about YAG and...