Kerr Centrifico Casting Machine: Difference between revisions

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+==Operation==
+*Start burnout process for flask
+*clamp machine to sturdy table
+*place chipboard box over machine (box currently (7/2015) located on top of lockers near back door)
+*wind machine counter clockwise for several turns
+*while holding wound machine, lift shiny metal bar upward and gently rest the swing arm against it
+**Pressure from swing arm will hold shiny bar in place
+*retract crucible tray (the metal bit that moves back and forth along the centrifugal arm axis)
+*start heating metal in separate crucible in a safe, nearby location. Preferably surrounded by firebrick
+*remove flask from burnout oven
+*place appropriately sized sheet metal support ring over heated investment flask
+**we have one for our wider flasks and one for the narrow flasks. Both are located with the flasks, crucibles, and casting machine
+*load flask and support ring onto the swinging arm
+*push crucible tray up against back of heated flask until snug
+*load crucible with molten metal into crucible tray. Keep under torch as much as possible to prevent oxidation.
+**Try not to torch the casting machine
+*pull counterweight slightly counterclockwise to release shiny metal bar
+*release counterweight and GET YOUR ARM OUT OF THE WAY
+*allow spinning arm to come to a complete stop before removing crucible/investment flask
+*dunk investment flask into water bucket to disintegrate investment
+*admire prize
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 * better mounting for tables
-* document how to use
 * document the box you put around it to avoid splashy metal
+**Current box is kind of crappy, but works fine
 [[Category:Metalworking]]
 [[Category:Hotmetals]]
 [[Category:Metal Casting]]