[Jewelry making - Article 00496] - Re: [Orchid] Guestimating wax to silver weight

[Kate Wolf]

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>       Is there a fairly accurate method to guestimate how much a model
>     made from green wax might weight in silver?  The wax model weights
>     about 2.5 grams.. 

    If you have a scale: multiply the weight of the wax by the specific
    gravity (density) of the desired metal, in this case 10.5. 

    If you don't have a scale you can use the water displacement method.
    Put water in a tall skinny cylinder. Mark the top of the water level
    on the glass with a sharpie or china marker. Submerge the wax under
    the water, and mark the new, higher level on the cylinder. Remove
    the wax, make sure the water level is up to the first mark on the
    cylinder. Add metal until the water reaches the upper mark.
    Warning!! If you use this method for calculating your weight, make
    sure you dry the metal thoroughly or your casting will be porous. 
    Don't forget to add some metal for the sprue. Tyler Teague wrote some
    excellent articles for AJM Magazine on proper sprue angle and
    buttons. 

Have a great day!
Kate Wolf in Portland Maine
http://www.wolfwax.com
http://www.wolftools.biz
http://www.katewolfdesigns.com

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