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Today, 18:21

meowmeowmeowmeowmeow started a thread Air cooling systems in Advanced Technical Discussion

Have experienced different thermal problems on assorted models (mostly kvants) wierdly taking a long time to fire up the OPSL on 30watt spectrums, random over heating of OPSL cuttign green out. Sometimes its the thermistor cable being loose. This time I think its a fan bearing ( output fan , don't...

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0 replies | 7 view(s)
Today, 17:27

Slide replied to a thread Dead Red Diode? in Help!

Thx, first time I've had one fail. There is a short power-on delay on the unit, but it seemed to delay all three diodes uniformly. I was hoping I could just track down a replacement diode that would drop in without a bunch of alignment dancing. I have no idea what a 500mw or 1w Chinese red diode...

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4 replies | 94 view(s)
Today, 17:12

Slide replied to a thread Dead Red Diode? in Help!

Yes Able is a mainland company. Thx, Craig

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4 replies | 94 view(s)
Today, 04:52

laserist replied to a thread Dead Red Diode? in Help!

It's been my experience that when a diode fails it fails. Perhaps a power on delay circuit is the culprit...

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4 replies | 94 view(s)
Yesterday, 22:57

Laserpower replied to a thread The World's Fastest Laser Projector in Lasers, All Kinds.

Just wondering. How did you get saturn scanner set ? Have asked for long time, but never been able to get any....

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7 replies | 515 view(s)
Yesterday, 22:55

Laserpower replied to a thread Dead Red Diode? in Help!

Looks like CNI laser sources. Greetings Poul Moeller - Laser Power ApS Denmark.

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4 replies | 94 view(s)
Yesterday, 18:15

Slide started a thread Dead Red Diode? in Help!

One of our 4 yr old Able 2.5w RGB systems has a 500mw red diode that was slow to come on for a while and then gradually just quit showing up. Opened the unit up and was hoping for a bad connection. Sprayed and reseated everything I could get to, including the brightness trim pot on the back but no...

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4 replies | 94 view(s)
10-12-2019, 07:33

kecked replied to a thread The World's Fastest Laser Projector in Lasers, All Kinds.

And sal.......let’s see some action out this bad boy.

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7 replies | 515 view(s)
10-11-2019, 19:36

dchammonds replied to a thread A Joke a day.. in The Lounge

Bet you haven't heard this one yet...

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1239 replies | 194454 view(s)
10-11-2019, 19:24

lasermaster1977 replied to a thread The World's Fastest Laser Projector in Lasers, All Kinds.

Wow very neat and totally cool projector build!

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7 replies | 515 view(s)
10-11-2019, 02:56

clickamouse replied to a thread W00t! I’m going to Scottsdale AZ in November in Laser Displays, Shows, and Scanning

Yup. Others? ...Mike

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14 replies | 583 view(s)
10-10-2019, 21:24

Eidetic replied to a thread W00t! I’m going to Scottsdale AZ in November in Laser Displays, Shows, and Scanning

Sounds like something on the afternoon of the 16th could work.

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14 replies | 583 view(s)
10-10-2019, 15:32

james replied to a thread NOOB help: Adding 405 nm Diode on my Laser world pro 700 RGB advanced in Modifications

The screen material has a lot to do with what a 405nm diode spot will look like. Some paper has whitening agents in it and if you wash a white sheet in the right kind of detergent it will also. When you shine a 405nm laser on that it looks bright bluish white. You can't see the violet at all. If...

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10 replies | 378 view(s)
10-10-2019, 15:08

dkumpula replied to a thread The World's Fastest Laser Projector in Lasers, All Kinds.

Hehee! Thanks for the kind words, guys. This was a a good bit of work, but worth the effort. I'm hoping that Sal (DiscoTheFunkyHippo) makes some beautiful stuff with it and shares it with us soon. -David

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7 replies | 515 view(s)
10-10-2019, 14:08

mixedgas replied to a thread The World's Fastest Laser Projector in Lasers, All Kinds.

Back in the OLE Days, a BIG German company that would do nearly anything to portray themselves as the first and foremost world market leader offered a ILDA 2,430,000 PPS PCAOM based single head projector. 30K X times 30K Y x 30 K Rott X 30K Grun X 30K Blau. = 2,430,000 ~ I THINK I can...

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7 replies | 515 view(s)
10-10-2019, 12:27

mixedgas replied to a thread Cheap replacement galvo mirrors for cheap galvos? in Modifications

There is a seller on Ebay, Laserwinkel, but 24$ a mirror is the cost. Starlight Photonics (Kevin Criqui) has 5x5x0.9 on Ebay, enhanced aluminum, but may be 0.3 mm too thick for slotted shafts. However $6.95 is laserist cheap. Steve

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6 replies | 977 view(s)
10-10-2019, 11:20

jestern replied to a thread NOOB help: Adding 405 nm Diode on my Laser world pro 700 RGB advanced in Modifications

Thanks everybody REALLY! I'm learning so much ... so from what I understand I can do this: IF my Blue Dichro passes most 405 (but probably difficult) I can follow this chain: UV Mirror G Dichro Mirror that lets UV reflects G low pass < 500 BUY (if it's not a mirror and...

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10 replies | 378 view(s)
10-10-2019, 07:06

dkumpula replied to a thread NOOB help: Adding 405 nm Diode on my Laser world pro 700 RGB advanced in Modifications

Good point. As you also pointed out, its a wildcard on the existing dichros. Most (modern) dichros in my experience aren't geared towards the low end of the spectrum. I should do some measurements of the more commonly available ones from Goldenstar, Kvant, etc. The cube approach might be harder...

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10 replies | 378 view(s)
10-10-2019, 07:03

clickamouse replied to a thread W00t! I’m going to Scottsdale AZ in November in Laser Displays, Shows, and Scanning

I am arriving on Monday, so we could conceivably meet Wed. or Thurs. 6-7th. Depends on what problems crop up during installation. On the 9th I'm doing a DIY laser lightshow class from 5-7, teaching visitors how lumia works with laser pointers. So that night won't work. Doing a lecture/demo at...

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14 replies | 583 view(s)
10-10-2019, 06:47

mixedgas replied to a thread need service manual for Coherent 700 and 7220 dumper in The Lounge

Check yer emails... 700 is a modded 699 The 899 manual will get you close. paper on the original design is attached.. Steve

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4 replies | 171 view(s)
10-10-2019, 06:19

Eidetic replied to a thread W00t! I’m going to Scottsdale AZ in November in Laser Displays, Shows, and Scanning

The show running every night sort of makes it difficult to plan a gathering, but I'd still like to try. How about something on Saturday the 9th? An afternoon of hanging out, some food, then over to the show. Any of the weekend days (9th, 10th, 16th, or 17th) would be fine with me, and if anyone...

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14 replies | 583 view(s)
10-10-2019, 06:17

mixedgas replied to a thread need service manual for Coherent 700 and 7220 dumper in The Lounge

AO or EO dumper? Either way its a hunk of quartz at Brewster' angle in the cavity. You either adjust the cavity length to match the dumper frequency or tune the dumper frequency to match the cavity length. The dumper by definition deflects the pulse out of the cavity, either by a actual...

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4 replies | 171 view(s)
10-10-2019, 04:51

clickamouse replied to a thread W00t! I’m going to Scottsdale AZ in November in Laser Displays, Shows, and Scanning

Alas, flying so I can't help you there. Good luck, and I hope to meet up with you at some point. ...Mike

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14 replies | 583 view(s)
10-10-2019, 03:19

kecked replied to a thread NOOB help: Adding 405 nm Diode on my Laser world pro 700 RGB advanced in Modifications

If you do a cube make sure to put the 405 straight through the cube to minimize loss and use a power meter to peak the polarization so you get the maximum through the cube. You can not do that by eye at 405nm. at that wavelength you are on the hairy edge of coatings and a purpose made cube will...

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10 replies | 378 view(s)
10-09-2019, 20:23

absolom7691 replied to a thread NOOB help: Adding 405 nm Diode on my Laser world pro 700 RGB advanced in Modifications

That's why I had recommended a PBS cube. Cheaper but a bit more complicated to set up.

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10 replies | 378 view(s)
10-09-2019, 17:59

dkumpula replied to a thread NOOB help: Adding 405 nm Diode on my Laser world pro 700 RGB advanced in Modifications

Kecked is correct that your 405nm goes last. EdmondOptics has a “cheap” dichro that will allow you to combine it. A 5mm dichro is about US$150.

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10 replies | 378 view(s)
10-09-2019, 14:56

kecked replied to a thread NOOB help: Adding 405 nm Diode on my Laser world pro 700 RGB advanced in Modifications

Yes put it last in the chain to minimize losses. Yea I think you could redo that system and just use the case. Get the xwossie drivers upgrade the diode optics. Don’t forget to change the blue for violet with a switch or use an additional color line but many da s don’t feed the extra line.

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10 replies | 378 view(s)
10-09-2019, 14:53

kecked replied to a thread need service manual for Coherent 700 and 7220 dumper in The Lounge

That was my first call. Nope no info. It’s his sohio laser. There are three actually. Really just need to know the dumper and what and how it works. Rest looks pretty easy to figure.

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4 replies | 171 view(s)
10-09-2019, 12:52

mixedgas replied to a thread need service manual for Coherent 700 and 7220 dumper in The Lounge

Call Coherent Scientific Product Line service hotline and provide serial and model number.. IF they still have it... I'll see, but I don think I have it. HIS or Mary's laser? Mary still had the manual for the similar beast. She also spent a week at the factory and had a friend that...

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4 replies | 171 view(s)
10-09-2019, 12:23

kecked started a thread need service manual for Coherent 700 and 7220 dumper in The Lounge

need service manual for Coherent 700 and 7220 dumper need to revive an old dye laser. yes steve that one....

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4 replies | 171 view(s)

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