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Old 06-16-2011, 04:36 PM #49
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Default Re: 8 diode 445 build

Clean, perfect work. /me now wants one so bad.
+1 for you andy.


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Old 06-16-2011, 08:34 PM #50
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Default Re: 8 diode 445 build

Quote:
Originally Posted by Benm View Post
Thats defintely true with these line shaped laser outputs, the mirrors would have to have an edge in the horizontal plane that does the knife edging, so they'd need different mouting systems. I'm not sure that that would require the unit to be larger though.
the raw beams from olike lens are 5mm high by 1mm wide

so if you knife edge them the other way round they would be ---- so 20mm long.

it just wouldnt work
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Old 06-16-2011, 08:44 PM #51
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Default Re: 8 diode 445 build

I know everyone is throwing out the compliments but they are well deserved!

Nice builds Andy!!!
I always love seeing the precision that your builds entail! They always inspire me for builds, I just wish I had the machining shop you had.
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Old 06-16-2011, 10:36 PM #52
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Default Re: 8 diode 445 build

Quote:
Originally Posted by andy_con View Post
the raw beams from olike lens are 5mm high by 1mm wide

so if you knife edge them the other way round they would be ---- so 20mm long.

it just wouldnt work
I thought of something different: having the mirrors come from the bottom or top instead of from the side. That way you could make the exact same pattern as you currently do, but 90 degrees rotated.

Perhaps its an idea to try on a future build, it also negates the need for a waveplate.
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Old 06-16-2011, 10:43 PM #53
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Default Re: 8 diode 445 build

trust me the the ive done it is the best way

Quote:
I always love seeing the precision that your builds entail! They always inspire me for builds, I just wish I had the machining shop you had.
i also wish i had a machining shop, i have a small bottom of the range milling machine in a garage
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Old 06-16-2011, 11:01 PM #54
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Default Re: 8 diode 445 build

Quote:
Originally Posted by andy_con View Post
trust me the the ive done it is the best way



i also wish i had a machining shop, i have a small bottom of the range milling machine in a garage
LOL...well I guess even a garage would be a good start for me
Nice work with what you have then!!
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Old 06-17-2011, 02:35 PM #55
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Default Re: 8 diode 445 build

Nice job!!
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Old 06-17-2011, 04:07 PM #56
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Default Re: 8 diode 445 build

Wide beams are generally beneficial for laser show applications, since the goal is to have them seen. You usually want as large of a beam diameter as you can get without exceeding what your galvo mirrors can handle without losses. Laser shows usually don't need 'perfect' beams either which is why setups like this work quite well.
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Old 06-17-2011, 10:11 PM #57
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Default Re: 8 diode 445 build

Quote:
Originally Posted by qumefox View Post
Wide beams are generally beneficial for laser show applications, since the goal is to have them seen. You usually want as large of a beam diameter as you can get without exceeding what your galvo mirrors can handle without losses. Laser shows usually don't need 'perfect' beams either which is why setups like this work quite well.
sorry but very very wrong.

a very tight ting 500mw beam will look just as bright as a wide fan 1watt beam.

if you know anything about lasers then you only want tight beams for laser shows.
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Old 06-17-2011, 10:48 PM #58
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Default Re: 8 diode 445 build

My experience, albeit quite limited as it may be, is that wider lower divergent beams work better. But i'll bow to your more extensive experience.
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Old 06-17-2011, 10:51 PM #59
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Default Re: 8 diode 445 build

when your in a 8000 capacity tent you want nice tight beams

Laser shows at Global Gathering 2009
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Old 06-17-2011, 11:00 PM #60
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Default Re: 8 diode 445 build

You do know we're arguing over millimeters here right? I said not big enough to cause losses off the galvo mirrors... which aren't very large. Or at least haven't been on any decent speed scanning set i've seen.
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Old 06-17-2011, 11:06 PM #61
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Default Re: 8 diode 445 build

lol yes we are arguing over mm.

coherent modules have the most amazing beams youve ever seen 10watts of green in like a 2mm beam. but they are 20k a pop
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Old 06-22-2011, 04:04 AM #62
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Default Re: 8 diode 445 build

That is pure awesome. End of conversation.
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