RF excited CO2 lasers

[nightstick]

i will take one if it goes thru thanks Mike

 

[nightstick]

Turtle,they burn real nice at 5 feet and at 12 feet they leave black marks on plywood but no red glow but like I said at 5 feet they start fire on plywood ;D

 

[turtlecannon]

The laser arrived today. Unfortunately it does not seem as if the PWM was included. Hopefully when that gets sorted out and my goggles arrive I will be able to get this working.

 

[Hemlock_Mike]

TC ---

You don't need the PWM driver to fire it up.  Simply provide 4 to 5 volts to the pwm leads and give the BIG input 26 to 32 volts at 9 to 15 AMPS.    Driving the PWM input to 20 mA gives it full power.  Watch out where it is pointed.  Paper won't stop it.

Mike

OOPS -- are you missing that side PC board? They are all a little different.

 

[turtlecannon]

Side PC board? It doesn't look as if I'm missing anything.

 

[Hemlock_Mike]

OK -- As I said -- they are a little different .......
Start burning !!!

Mike

 

[nightstick]

TC is it working

 

[turtlecannon]

I probably won't get a chance to test it out for a few days. I'm pretty busy this week and I'm waiting on some batteries for it.

 

[nightstick]

T.C I ordered a couple more one set up like yours and one just a tube and then I have my original which is probably all a guy needs but its just not enough somtimes more more more    Oh Mike just let me know on the lens when it comes in I will send you the money for it and thanks for getting that for me  

 

[suiraM]

OMG 70A continuous???!!! I could use a mosfet, a FC laser diode and a few of these to build a real star trek phasor... Stuck on low of course... ;D

They're crazy batteries, those A123's.

Some R/C people charge a stack by connecting it to a car battery.

When I asked my dealer what the charging requirements were, he told me to use a well cooled voltage regulator.

These cells are the same ones used in the Killacycle electronic drag racing motorcycle.

 

[Hemlock_Mike]

NightStick --

The -FL lens thing fell down. He won't sell for less than $125 even in qualtity

I'll keep looking.

Mike

 

[nightstick]

thanks for tryin anyway Mike  I put a red alignment laser on My co2 laser tonight it's really great to see where its aiming, I was starting cardbord on fire at 15 feet and my sighting laser is dead on. I hooked the allignment laser Up to my driver switch so all I do is hit the driver switch on and see where the red dot is and hit the the main amp power switch and POW!!! its burnin like a bat out of hell ;D what a blast cant wait to go burn some leaf piles  

 

[nightstick]

TCannon Im getting a system Like yours so if You have any questions or I have any questions we can help each other ..Chris told me a good place to go with lots of info and pics on our paticular setup I will pm you later with the info   NS

 

[turtlecannon]

TCannon Im getting a system Like yours so if You have any questions or I have any questions we can help each other ..Chris told me a good place to go with lots of info and pics on our paticular setup I will pm you later with the info   NS

Sounds awesome. I will be eagerly awaiting your PM.

 

[Hemlock_Mike]

NightStick ---

Here's my expander so far.  It's all PVC pipe machined to a tight fit.  I'm missing the -FL lens yet.

1-- 7.5" FL ZnSe Objective lens
2-- Objective lens holder
3-- Barrel
4-- Focus sleeve
5-- -FL lens holder (expander)
6-- Adapter to laser

Hope this helps you design yours.....

Mike

 

[Cyparagon]

a -FL lens is going to be quite a bit more than a +FL. Is saving an 8" of tubing length worth another $100? Also, how large is your lens?