Part 4 of Casting an aluminium die for casting aluminium into. This part shows the actual casting of the aluminium lens blanks using the aluminium die made in parts 1 and 2.
Part 1 "Casting the lens blank masters" can be seen here https://www.youtube.com/watch?v=hVdLDFAgJBg
Part 2 "Casting the lens blank die" can be seen here https://www.youtube.com/watch?v=mYM0Swgd5lI
Part 3 "Tilt casting explanation" can be seen here https://www.youtube.com/watch?v=rEHr9yCvz_0
