YAG head

[300EVIL]

Yeah it is!! But the only thing is...my cat knocked off my desk and now the Q switch is cracked... but I think I have one that might fit it. But yeah other than that it is a awesome unit!! Wish I ahd gone this way first with the yags...lol
Hows the monster laser project going?

DJ Matt

Which one... LOL...

Don't bother with the passive Q-switch unless you really need it. I find they tend to eat the rod end if they are not positioned just right. Cats and lasers don't mix. They leave hair and dander on your optics,,,, or knock stuff off the desk..... Lock kitty out of the laser room.

[djmatt]

Well she was next to fall off...lol Shes 14 years old and still love to chase lasers..lol it didnt help that I had my new 1.3 watt 445 projector running too..
Well I pulled it out and now it just plan sucks... it bearly puts a mark on black paper... Ill have to check aline ment even though theres really no movement the optics can do.. But I know what you mean with the loud pop!! From what I can under stand they dont like to be pushed over 900v, so I think the 800v is right on the money.
Well when I get it fixed, or just getting a new one,Im going to try and put it in a case like the one on youtube, but I want to add a key switch and a warning light, to try and make it some what safe..lol

DJ Matt

[300EVIL]

Yeah, sounds like you have more than a broken Q-switch. The frame could have tweaked when it hit the ground. Let's hope not. It should smoke the hell out of black paper. If I remember correctly the original cap was about 30uF. Also, make sure you wait like 1 minute between pulses. They heat up fast. Keep your target far away or you'll get splatter all over your OC. Good call on the keyswitch and lights. You may also want to put a "Cap Charged" indicator and/or a bleed resistor in there. It's no fun finding out the cap is charged by accident.

[djmatt]

Im not sure what happend other than it didnt like it...lol But Ive got a new one on the way I was thinking about that last night...Ive been poped too manytimes that way... I was also going to wire in a heater coil to act like a cap. dump, and just for jollys, add a jack and a switch to let run from a wall wort, or off batts. I also heard that you can add a KTP set and make a mean green!?
DJ Matt

[300EVIL]

Im not sure what happend other than it didnt like it...lol But Ive got a new one on the way I was thinking about that last night...Ive been poped too manytimes that way... I was also going to wire in a heater coil to act like a cap. dump, and just for jollys, add a jack and a switch to let run from a wall wort, or off batts. I also heard that you can add a KTP set and make a mean green!?
DJ Matt

No, Don't use a heater element. Something like 10K ohm @ 1W for rapid discharge or 1M ohm for slow bleed would be fine. A heating element is like 50 Ohms and will dump way too fast. Yeah, you can pump KTP with a pulsed YAG laser but it's tricky and will blow off coatings if not done correctly. I'd imagine an old laserscope crystal would work good but you'd also need resonator optics.

[djmatt]

Yeah, after I posted it I was like wount work too well...Maybe for a emergency dumper. Ive got one called a (brown devil) its the bleed off that came from a I-60 PSU,might be a bit of an over kill...
Yeah,maybe one day..


DJ Matt

[300EVIL]

Yeah, after I posted it I was like wount work too well...Maybe for a emergency dumper. Ive got one called a (brown devil) its the bleed off that came from a I-60 PSU,might be a bit of an over kill...
Yeah,maybe one day..


DJ Matt

If you want an emergency cap dump. Get yourself a 1K 5W resistor.

[djmatt]

Awesome! I think Ive got one!
Well the Death Machine is nearly complete

DJ Matt

[djmatt]

Well the (Death Machine) as my cuzn calls it... Is done!!! Just waiting for the new head then it will really lase!!! Ill post pics. soon!!

DJ Matt

[djmatt]

Well I have a new head, and the PFN and trigger for it as well! So now Ill have to see what it can do, ounce I figure out how to hook it up...lol
DJ Matt