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emh56
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spruing full gold pontic on full gold bridge to avoid porosity
haha now that I look at that picture, its maybe not the best example, I was trying to find pictures of the resevoir.
My advice is maybe misleading, using more force depends on if youre already winding 3x or 4x and how much gold your throwing .. I usually go 3 for gold, 3.5- 4 for NP or larger frames. The vents should control the added velocity of the metal.
Having said that, Ive cast maybe 2 full gold bridges in my career, one for the cdt test and one a couple years back, so maybe dont listen to me.
mill the gold
cash the cheque