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Thread: Balsa Cutting with NUMB 44 Diode - Help Requested.

  1. #1
    Join Date
    Feb 2017
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    1

    Default Balsa Cutting with NUMB 44 Diode - Help Requested.

    I am very new to lasers and am building a CNC laser cutter for balsa.

    Can anyone please provide definitive information of balsa cutting with the blue NUMB44 6W laser or any other 445nm laser diode?

  2. #2
    Join Date
    Dec 2008
    Location
    Canada
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    972

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    Hmmm... I would think that the raw Balsa would ignite and catch fire.
    I haven't tested it so... I'm not 100% sure.

    Jerry
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  3. #3
    Join Date
    Oct 2012
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    Germany
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    ... look here, especially at the "Elk-bows" in post #6, made from poplar- and balsa-plywood - http://www.photonlexicon.com/forums/...-for-Christmas

    I'm mostly using 2W or 3,5W diodes for their better/smaller focus - the 6W-diode has a bigger emitter with lower energy density, so not this efficient than the 3.5W diode.

    If you want finer cuts and have enough time (for more passes), the 2W-diode will be even better.

    One point is fuming - when cutting with full power, the plasma and fumes will burn and contaminate the borders and surface - here I'm using pretty short pulsed PWM and/or coating the surface with adhesive sheets of paper or masking tape, which I'll remove afterwards ...

    Viktor

  4. #4
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    Dec 2008
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    Canada
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    That's good to know Viktor...

    Jerry
    See the LaserBee II and all other LaserBee LPM products here....
    All LaserBee Laser Power Meter Products

    New 3.2Watt RS232/USB LaserBee II LPM REVIEW


    Always in stock and ready to ship....
    Subsidary:-Pharma Electronic Solutions

  5. #5
    Join Date
    Oct 2012
    Location
    Germany
    Posts
    1,013

    Default

    ... if you're looking for more infos than accumulated here in the "445nm"-section, then you can read through the RepRap-lasercutter-subforum -- http://forums.reprap.org/list.php?133

    Viktor

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