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Thread: Some gears and testing for laser-ablating and -marking ...

  1. #211
    Join Date
    Oct 2012
    Location
    Germany
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    1,478

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    ... and here another "toy", to get a feeling for needed power and aditional gears

    (it's a 20Watts UV-DPSS-laser with 355nm)

    Viktor
    Attached Thumbnails Attached Thumbnails 25W-UV-Laser.jpg  

    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

  2. #212
    Join Date
    Oct 2012
    Location
    Germany
    Posts
    1,478

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    ... for fun I tested the 24x2W diode module (three rows each 8x 2W-diodes) - I only have a power supply with max. 31V ... the module needs 36-38V for full power (so current only up to max. 800mA ... max. it can handle 4.8A) -- in the "far field" it has interesting distortion of the 3 diode rows:

    https://youtu.be/GpJ5Uxhr6zA


    The "spot" has about 3mm diameter, which was sufficient to shine the beam into the "mirror tunnel" of the beamer, where it was then "homogenised" before it went onto the DMD chip ...

    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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