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

  1. #81
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    ... yes, had this idea too and even enough memory wire and special (some of my old "proffessional DIY-ed") precise regulated current drivers for them - the mini-tweezer in the first video-sequence is driven/activated with memory wire

    Have enough other micro- and nano-actors, so not really a problem to get it moving ... only the time and motivation to find ...

    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

  2. #82
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    ... after the last Christmas action my middle sister also got a taste for it - but instead of "local snowflakes" she prefers to have a series of "witch's houses" 8)

    She recently drew two and I vectorized them and lasered them out of 0.3mm brass - this could be the start of a series, if she finds nice motif templates ...

    Viktor
    Attached Thumbnails Attached Thumbnails Hexenhäuschen-X2.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

  3. #83
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    Fort Mill, SC USA
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    Looking great as always, Viktor!
    "Help, help, I'm being repressed!"

  4. #84
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    ... thank you very much! (blushing)

    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

  5. #85
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    Jan 2006
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    Charleston, SC
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    Wow! Those look great!

    I've seen ornaments like that for sale in shops downtown for $20 to $30 each...

    Adam

  6. #86
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    ... got some 20W- and 25W@808nm-laserdiode-modules recently - one bigger housing with complex optics inside, three smaller types with bundled fibers to the FSMA-outlet:

    Will build some "locally focussed pre-heaters" for SLS and wire-fusing with them

    Viktor
    Attached Thumbnails Attached Thumbnails FAP-25W-808nm.jpg  

    JOLD-20W_808nm-Offen_kl.jpg  

    FAP-25W-808nm - 3A_0W_LED.jpg  

    FAP-25W-808nm - 8A_1W.jpg  

    Aufruf zum Projekt "Müll-freie Meere" - https://reprap.org/forum/list.php?426
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  7. #87
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    ... and here another FAP-diode - but this one is not IR, but around 680nm and should have max. power of 5 or 7 Watts ... have to determine, when (re)assembled a driver for 20 Amperes.

    Her ist's below 1 Amp as "LED" (the single fibers visible in the far-field) ... at around 2 Amps in the threshold, start lasering ... and at around 7 Amps with roughly 3 Watts output ...

    Viktor
    Attached Thumbnails Attached Thumbnails 1A_2A_7A.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

  8. #88
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    ... and here the JOLD diode working with 2, 4, 6 and 8 Amperes ...

    Viktor
    Attached Thumbnails Attached Thumbnails JOLD_25W@808nm-2A.jpg  

    JOLD_25W@808nm-4A.jpg  

    JOLD_25W@808nm-6A.jpg  

    JOLD_25W@808nm-8A.jpg  

    JOLD_25W@808nm-8A-Faser.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

  9. #89
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    ... got a 500Watt@808nm-diode - first test with 9 Amps OK (starts lasering at around 8 Amps) ... will need something like 70 Amps for full power!

    The attached images: first, sitting on a cooler with peltiers (25W-diode for comparison) ... direkt output from the FSMA connector ... through attached glass fiber ... and last - opened, to see the guts ...

    Viktor
    Attached Thumbnails Attached Thumbnails 500W_25W.jpg  

    8A-unfokussiert.jpg  

    8A-Faser.jpg  

    500W-Diode offen.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

  10. #90
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    ... the next in the series of "witch's houses"

    Viktor
    Attached Thumbnails Attached Thumbnails Rapunzel-Turm.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

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