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Old 12-09-2013, 11:49 PM #65
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Default Re: 11W blue laser "hell burner". Hello from Russia ;)

I have to say your a pro at making videos, I made a video of my 15w and as you can see it not as good as your video how do you do it? and nice laser !
15w 445nm AR15 laser module cutting steel spring - YouTube



Quote:
Originally Posted by superlazers View Post
I accidentally found a video with my 11W hell burner. You can see a FHD-burning (high resolution). Enjoy watching



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Old 12-10-2013, 01:09 PM #66
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Default Re: 11W blue laser "hell burner". Hello from Russia ;)

Quote:
Originally Posted by ricktrent4 View Post
I have to say your a pro at making videos, I made a video of my 15w and as you can see it not as good as your video how do you do it? and nice laser !
15w 445nm AR15 laser module cutting steel spring - YouTube
It seems your only problem is with focus. Use camera which has manual focus or some kind of focus lock. Then focus the camera before actual capture.
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Old 12-10-2013, 03:24 PM #67
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Default Re: 11W blue laser "hell burner". Hello from Russia ;)

thanks your right I need to get a better camera

I got my camera to work better with your help thanks http://youtu.be/GtWO26vg1Q4
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It seems your only problem is with focus. Use camera which has manual focus or some kind of focus lock. Then focus the camera before actual capture.

Last edited by ricktrent4; 12-11-2013 at 05:34 PM. Reason: New video
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Old 12-10-2013, 07:31 PM #68
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Default Re: 11W blue laser "hell burner". Hello from Russia ;)

Also try an NLE suite such as kdenlive.
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Old 12-15-2013, 01:10 AM #69
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Default Re: 11W blue laser "hell burner". Hello from Russia ;)

Wow this is rad man!
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Old 12-21-2013, 07:04 PM #70
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Default Re: 11W blue laser "hell burner". Hello from Russia ;)

Very nice! But may I ask why you use 8 diodes @ 1.5W (those are M140, right?) and not 4 9mm diodes @ 3w?
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Old 12-21-2013, 08:41 PM #71
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Default Re: 11W blue laser "hell burner". Hello from Russia ;)

That is a very nice setup, +rep!
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Old 12-22-2013, 04:13 AM #72
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Default Re: 11W blue laser "hell burner". Hello from Russia ;)

Quote:
Originally Posted by RGB View Post
Very nice! But may I ask why you use 8 diodes @ 1.5W (those are M140, right?) and not 4 9mm diodes @ 3w?
Good question. It would have been cheaper. Though it depends where he got the diodes
from. Maybe he got a good deal on the M140s.
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Old 01-16-2015, 04:38 AM #73
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Default Re: 11W blue laser "hell burner". Hello from Russia ;)

When building such a beast as this, why use two rows of combining power and not just one row twice as long? I'm interested in building something like this and want to know if there is any advantage to having them split into two rows. The only thing I can see of possible concern is the mirror mounts slowly migrate from one side to the other in a long line, but believe less space might be needed in the long run, if all of the lasers and mirrors are in one line. I must be missing something as I've seen this kind of pattern repeated in other knife edge projects.



Thanks, I hope no one minds my having dragged this one to the top of the pile again. For myself, I see no reason to make an additional disjointed thread when I can just add to this one.

Chris
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Old 01-16-2015, 07:35 AM #74
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Default Re: 11W blue laser "hell burner". Hello from Russia ;)

Quote:
Originally Posted by Alaskan View Post
When building such a beast as this, why use two rows of combining power and not just one row twice as long? I'm interested in building something like this and want to know if there is any advantage to having them split into two rows. The only thing I can see of possible concern is the mirror mounts slowly migrate from one side to the other in a long line, but believe less space might be needed in the long run, if all of the lasers and mirrors are in one line. I must be missing something as I've seen this kind of pattern repeated in other knife edge projects.

Thanks, I hope no one minds my having dragged this one to the top of the pile again. For myself, I see no reason to make an additional disjointed thread when I can just add to this one.

Chris
From the photo it appears he is combining the two beams with the cube in the lower right, the difference would be the beam diameter, all in one row the beam would be twice as big.

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Old 01-16-2015, 08:03 AM #75
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Default Re: 11W blue laser "hell burner". Hello from Russia ;)

Thank you Pi R, you always help, guess I haven't miffed you off with my crazy UFO interests

I don't mind a bigger beam because I was wanting to put an expander on it anyway to reduce the divergence, but I don't understand why the beam is smaller if you combine in a cube from two rows, can you help me with that?

Thanks Chris
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Old 01-16-2015, 08:30 AM #76
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Default Re: 11W blue laser "hell burner". Hello from Russia ;)

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Originally Posted by Alaskan View Post
Thank you Pi R, you always help, guess I haven't miffed you off with my crazy UFO interests

I don't mind a bigger beam because I was wanting to put an expander on it anyway to reduce the divergence, but I don't understand why the beam is smaller if you combine in a cube from two rows, can you help me with that?

Thanks Chris
I don't mind your UFO interests, I described my 2 sightings in another thread sometime back. For some reason some people think that if another planet had intelligent life then it couldn't be more advanced than us.

If you combine beams with a PBS cube or a dicro the beams can be perfectly merged with no increase in size, with knife edging the beams are combined by aligning them next to each other to form a larger beam (|||||) the more lasers the larger the beam, not so with the cube or a dicro.

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Old 01-16-2015, 08:36 AM #77
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Default Re: 11W blue laser "hell burner". Hello from Russia ;)

Aha, now I see, for some reason I thought the beams could all be reflected to the same spot and overlap one another. So, multiple cubes would be better but more loss. I might consider doing that, if so. If using dicro's, that's only for combing two or more colors right? Otherwise I'm back to using a regular mirror (or dicro mirror)?

If you were going to combine 25 M140 diodes, what would you do to make the nicest beam?

On the UFO interest, I might have seen 7 or 8 of them over the mountains here in Anchorage Jan first right after midnight, if it wasn't the army shooting red flares on parachutes doing it but they were staggered from a high to low altitude, I still haven't been able to find out if they were flares or not. I've seen "UFO" craft twice before where I had no doubt, this time I don't know one way or the other if they were hovering craft of some type, or flares slowly floating down. They all just blinked out at the end without loosing much if any altitude, very strange.
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Old 01-16-2015, 08:55 AM #78
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Default Re: 11W blue laser "hell burner". Hello from Russia ;)

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Originally Posted by Alaskan View Post
Aha, now I see, for some reason I thought the beams could all be reflected to the same spot and overlap one another. So, multiple cubes would be better but more loss. I might consider doing that, if so. If using dicro's, that's only for combing two colors, otherwise I'm back to using a regular mirror (or dicro mirror)?

If you were going to combine 25 M140 diodes, what would you do to make the nicest beam?
No sorry but that won't work, the P in PBS means polarized, one set of beams this way "-" and one this way "|", you only combine beams once that way. For a large number you need knife edging and if you combine multiple colors then dicros. 25 I don't know, I guess the same thing, 2 rows and a cube.

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Old 01-16-2015, 09:12 AM #79
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Default Re: 11W blue laser "hell burner". Hello from Russia ;)

Oh... then I just have to make things smaller while managing heat too which limits the size of my heat sink and thus the overall size of the platform. I was hoping to fit it all into a long tubular mounting, the bottom half heat sinking fins. OK, thanks, time to sleep, have a two week job ahead of me on the north slope (shoreline) of Alaska to fly to later today, now that it's after 1 AM.
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Old 01-17-2015, 02:26 PM #80
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Default Re: 11W blue laser "hell burner". Hello from Russia ;)

Good Gawd thats got some punch. Can you design one to etch bare steel. To replace. Co2 tube in engraver? Reps to you !!
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