Investing a bridge? Need advice.

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Heidi

Heidi

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Ok so i need to invest and cast two bridges today. usually i do bridges on my scanner and have them laser melted, but i need these ones done like now! I use Sheinvest. i need to know what ratio works best for bridges? The previous lab I worked at could not figure out how to not get a warped bridge with sheinvest. I am confident with a little advice I can get a nice well fitting bridge. One is 5 unit and one is 4. they are both noble and I have some Calisto CPG on hand. PFM framework. I am an experienced ceramist but metal work and casting is new to me. i do lots of singles and gold without issues, but bridges intimidate me on the metal work side of things. i dont want to put all this time into it to have it warop. I would appreciate any advice on spruing,investing, burnout, etc.... just want it to come out nice. TY
 
Travis

Travis

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