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Old 09-30-2009, 11:19 PM #1
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Default Laser Show on the cheap

I've been reading over at photolexicon for a bit, and I'm still not clear on a lot of things on what kind of lasers and drivers you need to do a standard RGB unit with blanking. Do you need an "analog" laser like the expensive ones on ebay or would regular high output (up to 300mw) modules work for an inexpensive show, are there special drivers other than the standard ones from modwerx for example? Any clarification is appreciated.


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Old 09-30-2009, 11:27 PM #2
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Default Re: Laser Show on the cheap

theres 2 type of drivers for rgb,rgv,rgy shows. ttl and analogue. analogue is the better of the 2 with a possibility of 16million colors possible. ttl only makes up to 7 colors.

drlavas flexmod drivers work well for beginners if your looking into scanners or light shows...
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Old 09-30-2009, 11:28 PM #3
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Default Re: Laser Show on the cheap

In regards to drivers.. a TTL or analogue driver is needed for blanking and CMIW also adjusts intesity

For TTL you would need something like this:

http://o-like.com/b2b_cpinfo.asp?id=968
or this
http://o-like.com/b2b_cpinfo.asp?id=982
or this (lower power green)
http://o-like.com/b2b_cpinfo.asp?id=966
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Last edited by bobhaha; 09-30-2009 at 11:30 PM.
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Old 09-30-2009, 11:31 PM #4
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Default Re: Laser Show on the cheap

Those units on olike are just regular diodes w/ optics inside a box and a ttl driver or in other words, something I might be able to make myself for half that price? I thought I had read analog was necessary for blanking.
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Old 09-30-2009, 11:34 PM #5
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Default Re: Laser Show on the cheap

ttl is blanking. alalogue is fading...
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Old 09-30-2009, 11:41 PM #6
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Default Re: Laser Show on the cheap

Quote:
ttl is blanking. alalogue is fading...
oh my bad.. thats right!

Quote:
Those units on olike are just regular diodes w/ optics inside a box and a ttl driver or in other words, something I might be able to make myself for half that price? I thought I had read analog was necessary for blanking.
No its not.. as you said you want to keep the build cheap I would suggest TTL.. you can go ahead and try make the driver and optics set by your self.. might be cheaper might not.. I dont really know the prices for individual components.. but for a nice clean kit.. IMO i would go for an already built "kit" only cause i don't have as much experience in optics and electronics, then most people in this forum do!

otherwise you could go down the analogue road.. all up to you!

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Old 10-01-2009, 12:53 AM #7
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Default Re: Laser Show on the cheap

I'm liking the idea of 16 million colors (of course, who wouldn't) and I have the technical expertise to pull of complicated builds, so anyone have any sources and or price guesstimates on analog drivers? Again I may be incorrectly assuming that I can use regular diodes/optics with a special type of driver.
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Old 10-01-2009, 01:48 AM #8
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Default Re: Laser Show on the cheap

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Old 10-01-2009, 01:56 AM #9
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Default Re: Laser Show on the cheap

here is a list another member has come up with.. he is using a dac (digital to analogue converter) for this build.. also using the same laser as mentioned above!

First laser scanner
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635nm - 430mW C6 Host*
632.8nm - Red He-Ne laser ~1mW
593.5nm - Regal 5
542.8nm - Green He-Ne laser ~2.5mW
532nm - 620mW+ lasersman Firedragon III* - 100mW PGL-III-M from JETLASERS* - 70mW Rayfoss Host*
~~~ - 175mW Rayfoss Host - <5mW WL Core - 55mW DinoDirect review laser*

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473nm - 2x CNI lab lasers ~40mW
445nm - 3W Big Boyz Laser - >1.1W Cree C6 Host - 650mW WL Arctic
405nm - 65mW GLP-405 Aquarius host - 160mW 6x Blu-ray MXDL Host
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Jetlasers wrap around 190-540nm OD4+ goggles*
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Scopeguy20 Blublockers for 405nm lasers!

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Old 10-01-2009, 02:23 AM #10
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Default Re: Laser Show on the cheap

I think you should decide what type of scanner you want: beamshows or anamations.

Next, you should decide how many colors you want. I HIGHLY suggest doing a 1 color scanner and adding later. I am working on my first scanner and i splurged and did a RGV(red green violet). I lost a dichro already and it will cost me atleast another 50 dollars to get another. Plus you have to align everything.

If you take my suggestion then the 100mW o-like is fine. Im using it in my scanner and it is perfect.

Ill make a short list of things you will need:

An enclosure
galvos
lasers
power supplies
fans
a base plate
a power plug
a db25 (try DZE's. Its on the thread that bob linked.)
power cord
dac(READ THE THREAD BOB LINKED ABOUT THIS. POST 85 ON. IT EXPLAINS IT ALL [/caps]
db25 cord
bolts, wiring stuff

Thats about it. Doing a single color scanner will probably cost around 400 dollars. Its not cheap but it will be worth it.

Keep asking questions. I am happy to help. People helped me (Thanks EF/Things) and i want to pass it on.
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Old 10-01-2009, 03:56 AM #11
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Default Re: Laser Show on the cheap

aixiz has an adjustable 50mw(actually outputs ~100mw when you turn it up) that comes with ttl thats ~60-70$ for the price, features and power you cant find a better deal...
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Old 10-01-2009, 02:51 PM #12
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Default Re: Laser Show on the cheap

Quote:
Originally Posted by The_Muffin_Man View Post
I think you should decide what type of scanner you want: beamshows or anamations.

...

If you take my suggestion then the 100mW o-like is fine. Im using it in my scanner and it is perfect.

Ill make a short list of things you will need:

An enclosure
galvos
lasers
power supplies
fans
a base plate
a power plug
a db25 (try DZE's. Its on the thread that bob linked.)
power cord
dac(READ THE THREAD BOB LINKED ABOUT THIS. POST 85 ON. IT EXPLAINS IT ALL [/caps]
db25 cord
bolts, wiring stuff

Thats about it. Doing a single color scanner will probably cost around 400 dollars. Its not cheap but it will be worth it.

Keep asking questions. I am happy to help. People helped me (Thanks EF/Things) and i want to pass it on.

Much appreciate the input, I will take your advice and start with a green 1 color, my only concern is how hard is it to add colors when I know next to nothing about optics. I'm learning alot reading the forums esp. at PL.

My main goal is animations and SIZE, i'd like to be able to have something that's really versitile when it comes to size which means I have to make sure my optic angle is versitile, most of the 20Kpps or 30kkps units on ebay seem to have a max 12 angle which seems really low.
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Old 10-01-2009, 10:52 PM #13
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Default Re: Laser Show on the cheap

personally i would recommend die4laser drivers.

in my eyes they are the best out there
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Old 10-01-2009, 11:03 PM #14
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Default Re: Laser Show on the cheap

^ adding colors shouldnt be too hard. You may have to re-lay out your scanner. Make sure to buy a baseplate that is big enough. My baseplate is 11.5X21" (lol weird dimensions). You will also need dichros. They pass one color, and reflect another allowing you to combine beams.

Which reminds me: I just found a steal on a reflect blue dichro. I am using a violet laser though. This dichro is 15 shipped and the reflect violet is 75 shipped. Will there be a HUGE(and im talking HUGE) power loss? If there wont...i am going to just use a reflect blue.

Keep asking questions!
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Old 10-02-2009, 05:15 AM #15
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Default Re: Laser Show on the cheap

Quote:
Originally Posted by The_Muffin_Man View Post
^ adding colors shouldnt be too hard. You may have to re-lay out your scanner. Make sure to buy a baseplate that is big enough. My baseplate is 11.5X21" (lol weird dimensions). You will also need dichros. They pass one color, and reflect another allowing you to combine beams.

Which reminds me: I just found a steal on a reflect blue dichro. I am using a violet laser though. This dichro is 15 shipped and the reflect violet is 75 shipped. Will there be a HUGE(and im talking HUGE) power loss? If there wont...i am going to just use a reflect blue.

Keep asking questions!
People have used PBS cubes designed for 473nm to combine 405nm lasers. There is some loss, but considering the price difference I don't think it'd make much difference. For that price, it's a steal anyway.
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Old 10-02-2009, 11:37 PM #16
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Default Re: Laser Show on the cheap

This may be a silly question, but is a bench power supply that can supply a constant voltage and amperage output that I can program to different settings equivalent to a driver for a laser diode? I'm assuming I can use my bench supply set to 5-7v at 200ma and have it power a laser diode without a problem, for testing purposes.
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