Research casting surface quality issues

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• [x] Try 535 alloy
• [x] Try 356 alloy
• [x] Try more metal volume in a cone entrance
• [x] Try adding more air escape vents
• [x] Try using degasser differently
• [x] Try using conditioner differently
• [x] Temperature control with pyrometer
• [x] Timing control with a multi-timer
• [x] Vacuum casting

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Try ordering from Pacific Cast Products: http://www.pacificcastproducts.com/Pages/AluminumAlloys.aspx

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Requested a quote for 535 alloy, which seems like the best fit for the application.

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Looks like I need a vacuum casting rig. Got started on it by buying vacuum casting flasks (perforated).

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http://buynow.metalsupermarkets.com/landing-page/?city=portland&gclid=CKiE86rBuNMCFQ2ffgodTZ0K6w

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http://www.westcoastmet.com/

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http://www.eastsidesteel.com/

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http://www.foundrystuff.com/contact.html

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Get this for temp control: http://mifco.com/shop/pyrometers/replacement-12-thermocouple-tip/

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https://www.google.com/search?sourceid=chrome-psyapi2&ion=1&espv=2&ie=UTF-8&q=steel%20tube%20and%20pipe%20portland%20oregon&oq=steel%20tube%20and%20pipe%20portland%20oregon&aqs=chrome..69i57.6062j0j4&npsic=0&rflfq=1&rlha=0&rllag=45603561,-122714546,5971&tbm=lcl&rldimm=15412113356342456738&ved=0ahUKEwiw0erqjbnTAhURxGMKHb2cBkUQvS4IYzAC&rldoc=1&tbs=lrf:!2m1!1e2!2m1!1e3!3sEAE,lf:1,lf_ui:2

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https://www.google.com/search?espv=2&q=clackamas%20metal%20yard&oq=clackamas+metal+yard&gs_l=serp.3..0i22i30k1.214752.220766.0.220887.26.18.1.7.7.0.318.1773.9j3j2j1.15.0....0...1c.1.64.serp..4.22.1470...0j35i39k1j0i67k1j0i131k1j0i20k1j33i21k1j33i160k1.6kfDArK6VA8&npsic=0&rflfq=1&rlha=0&rllag=45411193,-122559047,509&tbm=lcl&rldimm=12746759637466513188&ved=0ahUKEwivxpnRkLnTAhUCwGMKHf21AWkQvS4ITTAB&rldoc=1&tbs=lrf:!2m1!1e2!2m1!1e3!3sEAE,lf:1,lf_ui:2

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Timing, vacuum casting, and better metal stock solved it.