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Thread: coherent matrix

  1. #1
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    Default coherent matrix

    I have 2 identical DPSS coherent matrix 1064-10-30 lasers that have the same problem (see desoldered optic in red circle ).
    These lasers have coherent permalign technology..

    How can i solder this and align it the same time.

    In both lasers the same optic is desoldered.
    What is the use of these type lasers ? have some special application ?

    Also has anyone the manual of this laser ?
    Attached Thumbnails Attached Thumbnails prob.jpg  


  2. #2
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    ... could it be a thermal problem? - eventually element overheated and so desoldered?

    You should be able to remove the solder and use 2K-glue too ...

    Viktor
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  3. #3
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    No is not thermal problem.
    The optic detached mechanically at transport.
    The soldering was not good because had metal mass and the preheating for soldering was not enough so produced a semi-cold solder joint.
    I know that with glue can attach it but how to align it ?
    I prefer to solder it again but i don't know how.. with solder iron? or needs something more drastic like laser welding or induction heating ?

  4. #4
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    ... can you test the melting temp of the solder? -- there are several low-temp melting aloys like "Roses metal" (melting around 100degC) or Woods or Fields metals melting around 70 or 60 degC ...

    Viktor
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    Call for the project "garbage-free seas" - https://reprap.org/forum/list.php?425

  5. #5
    mixedgas's Avatar
    mixedgas is offline Creaky Old Award Winning Bastard Technologist
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    Aligned at the factory with a six axis positioning stage for each optic, that comes in from above.

    Steve
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  6. #6
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    ... as the other elements are in place, a "simple" XY+ROT microstage should be enough - they can be found/salvaged inside/from old optical gear, found at ebay (have some XY/AB/Pan/Tilt-tables or PZT-actuators removed from old optical tables or as remnants from F&D-projects) ...

    Viktor
    Aufruf zum Projekt "Müll-freie Meere" - https://reprap.org/forum/list.php?426
    Call for the project "garbage-free seas" - https://reprap.org/forum/list.php?425

  7. #7
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    I have a 6axis yaskawa motoman 3kg payload small robot that i can use it as 3rd hand.
    (like this https://www.robots.com/robots/motoman-hp3 )

    All other optics are in place.
    Also the signs of detachment shown clear so i can make very good estimation of original position.
    How can verify the alignment with red laser pointer ?
    Where must put the red pointer for adjustment ?
    The red pointer i have is a small diode laser coherent stingray about 5mw
    Last edited by javanam; 02-01-2021 at 07:52.

  8. #8
    mixedgas's Avatar
    mixedgas is offline Creaky Old Award Winning Bastard Technologist
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    Without an autocollimator probably the only way to align it is to lase it, then look at the beam quality and power.

    Steve
    Qui habet Christos, habet Vitam!
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  9. #9
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    Do you know something diy power meter - method to inspect beam profile ?
    For Co2 lasers a transparent acrylic block tells the truth but what for 1064nm ?
    Last edited by javanam; 02-01-2021 at 20:17.

  10. #10
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    ... I'm using IR-indicator-cards or ceramic tiles for the NIR-diodes and fiberlasers to check the beam-quality ...

    Viktor
    Aufruf zum Projekt "Müll-freie Meere" - https://reprap.org/forum/list.php?426
    Call for the project "garbage-free seas" - https://reprap.org/forum/list.php?425

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