Description This is a Kaya Cast Vacuum Casting machine. Requirements for Use Required Badge Kaya Cast Vacuum Machine Badge Checkout Requirement Badge applied after successful quiz Log in to see status ?Log in to check eligibility Watch the training video Kaya Cast Vacuum Machine × Need the checklist, documentation or quiz? Open the full badge page. Instructions for Use Sprue size: 0.41" diameter, 0.25" length Small flask plaster ratio: 621g plaster, 243g water