Forums Beginner Questions lighting position

12 replies, 6 voices Last updated by  carlshearer 2 months, 1 week ago
Viewing 13 posts - 1 through 13 (of 13 total)
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  • #2365

    carlshearer
    Participant
    @carlshearer

    hello everyone,
    i have been thinking about changing my faceting set up a little. in particular i am interested in optimizing the lighting in the hopes that this will help me. i am using a facetron machine. i am a relatively new faceter, having cut 40 stones over the last 2 1/2 years. i seem to spend an inordinate amount of time inspecting the facets – especially when looking for persisting scratches while polishing. i am wondering if changing the lighting will help

    i am wondering if members would be willing to comment on what position they have the light coming from while faceting to optimize the inspection/visualization of the facets while faceting

    #2369

    Tom Mitchell
    Keymaster
    @tommitchell

    There are a few things you can try. First, when you are examining the facet, move the stone so that the light reflection is not directly shining back at you. You can see the scratches when the light is at a slight angle from your eye. The way I do this is to arrange the light so that I can easily get a full reflection and then move the stone ever so slightly so that the reflection is gone. The scratches then become visible.

    Another thing that I do which helps me see the stone better is that I either hold a dark surface or my finger behind the stone, so that I do not get a lot of light from behind the stone.

    Another thing that I have heard mentioned but that I have not yet tried is to replace your frosted bulb with a clear bulb that has the element exposed. This provides a smaller light reflection.

    Tom Mitchell

    #2378

    carlshearer
    Participant
    @carlshearer

    Thanks Tom, that sounds like good advice. i am essentially doing that although i have not been putting anything behind the stone to stop light coming from the back – good idea.
    i am wondering where you position the light in relation the the machine. is it straight above the machine or coming from behind you etc?

    #3281

    gemmakermz
    Participant
    @gemmakermz

    hey guys –yup tom your right and yes use a refrigerate 40 watt none frosted bulb will help too.

    #3658

    wilbertfwebb
    Participant
    @wilbertfwebb

    I just received some new energy saving bulbs that Duke Energy made available to me. I tried on in my Facetron setup and was very pleased.

    LED 9wA19 Lamp 60 watt equivalent, Omni-directional, Suitable for damp locations
    Light Output 800 lumens
    Color Temp 2700 K

    Bert Webb
    Sophia, N.C.

    #3660

    carlshearer
    Participant
    @carlshearer

    thanks Bert, any pictures available of where you put the light in your set up.

    i am doing better than i was but struggle when inspecting some facets still – especially the girdle

    #3661

    wilbertfwebb
    Participant
    @wilbertfwebb

    Carl

    I aim the light and adjust beam for best view. Girdles are a challenge even with perfect lighting.

    Bert

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    #3664

    wardmonterosso
    Participant
    @wardmonterosso

    Hi Carl,

    I myself like having several lights available to me that I can adjust however necessary. In all of them I use a 40 watt Reveal clear incandescent bulb. My setup is as shown.

    W@rd

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    #3667

    carlshearer
    Participant
    @carlshearer

    Wow, I like that

    #3677

    Aldrich, John
    Participant
    @Double Eagle Mine

    I have found that using a penlight at a low right angle to the facet, especially girdle facets, will help show any issues while polishing. Comes in handy when realigning with any facet during cutting.

    #3678

    carlshearer
    Participant
    @carlshearer

    Thanks John,
    are you holding the penlight by hand?

    #3679

    Aldrich, John
    Participant
    @Double Eagle Mine

    Yep When using the loop you move the light around to reflect off the scratches made by diamond or oxide polish. the smaller the penlight beam the better.

    #3680

    carlshearer
    Participant
    @carlshearer

    Hmm, I am trying to figure out how to do this . I need one hand on the stone, one hand on my loupe and one hand On the penlight

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