[Jewelry making - Article 00183] - Re: [Orchid] Investment inside casting pieces

[John Donivan]

========[ Invite a Friend - http://www.ganoksin.com/invite.htm  ]========

Hi there,

    As a person who has casted many years, my thoughts are several.
    First, how long was your burn out. (did you follow thru as per the
    specs. for your investment) What were the spru positions on the
    incomplete? (sometimes the angles are off-enough that the metal
    doesn't complete the path) Did you wind up or activate your
    caster-completely? (not enough force can cause the cast to not fill
    out) If you are doing electro melt- was your machine calibrated
    correctly? (perhaps the melt down was not up to complete temp.) How
    long ago did you change your crucible? (that could be a breakdown of
    the carbon crucible). The green haze could be too much flux....Just
    some thoughts from a 30 year caster-still learning on a daily basis. 

    Ciao from sunny but chilly SF Bay Area!!!!!!!!!! 

Jo-Ann Maggiora Donivan
____________________________________________________________________
T h e   O r c h i d   L i s t
Open Electronic Forum for Jewelry Manufacturing Methods and Procedures
____________________________________________________________________
Orchid FAQ:
~ http://www.ganoksin.com/orchid/faq.htm
Orchid Archives:
~ http://www.ganoksin.com/orchid/archive
Orchid Galleries:
~ http://www.ganoksin.com/orchid/gallery.htm
Invite a Friend:
~ http://www.ganoksin.com/invite.htm
____________________________________________________________________
Tips From The Jeweler's Bench - Article Archive
~ http://www.ganoksin.com/borisat/tip_sear.htm
The Jeweler's Selected Bibliography List
~ http://www.ganoksin.com/jewelry-books
Buy Orchid Jewelry:
~ http://www.ganoksin.com/shop
____________________________________________________________________
-Unsubscribe:
-Email: orchid-request AT ganoksin.com Body=unsubscribe subject=blank
____________________________________________________________________