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Thread: Grounding for DC-KIII?

  1. #1
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    Grounding for DC-KIII?

    Hi all,

    I've just ordered a DC-KIII off of eBay. I'm very excited for making my first cuts.

    There's something in the instructions (located here: http://www.jinlantrade.com/Stock%20files/K40Manual.pdf ) that doesn't make sense to me. On the first page, at a seemingly random location, it warns "The switch must connect to secure ground wire!"

    Does anyone know what this is about?

    Thanks,


    Ben
    Last edited by B3nzilla; 04-04-2012 at 04:32 PM.


  2. #2
    Community Moderator Al_The_Man's Avatar
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    The terseness of the sentence and lack of reference makes it virtually useless?
    I see they are a just a general Chinese trading Co with offices in NY, there does not appear to be a link to ask for support?
    Al.
    CNC, Mechatronics Integration and Custom Machine Design (Skype Avail).

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.


  3. #3
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    I think that website might belong to the manufacturer, though I'm not sure. It seems like a lot of the sellers of this particular laser link to that instruction manual.

    This is the laser I bought in particular: http://www.ebay.ca/itm/180827790568?...t_14327wt_1141


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    Community Moderator Al_The_Man's Avatar
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    Quote Originally Posted by B3nzilla View Post
    I think that website might belong to the manufacturer, though I'm not sure. It seems like a lot of the sellers of this particular laser link to that instruction manual.

    This is the laser I bought in particular: http://www.ebay.ca/itm/180827790568?...t_14327wt_1141
    Try the ebay seller?
    Al.
    CNC, Mechatronics Integration and Custom Machine Design (Skype Avail).

    “Logic will get you from A to B. Imagination will take you everywhere.”
    Albert E.


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    Jaha! Just got my laser today!

    I think that instruction might be obsolete.

    There is a terminal post at the back that says "Ground wire joint", but on the inside of the machine, it appears to be connected to the ground of the (north American) plug.




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    It all makes sense now. They provide a standard power cord with the machine with a Chinese plug and they also ship a Chinese to North American adaptor. The adaptor's ground plug is not connected.

    If using their adaptor, one definitely needs to ground the machine separately. The alternative is to just use a standard North American power plug. Like the one's that go into the backs of monitors and laptop power bricks.


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    Hi All,
    I'm new to laser cutting, and looking to cut ~50 um plastic sheets. I need to cut holes that are 170 um in diameter. I just found the DC-KIII on e-bay and I'm wondering if you think it would work. How do you like yours?

    Thanks.


  • #8
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    Excuse my ignorance, but what is 50um or 170um as far as size goes. I have this laser and i routinely cut 3mm material and on sometimes 6mm. Mostly acrylic or wood.

    Milt


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