The radius of 8-inch die is 4 inches, and the radius of 6-inch die is 3 inches.
The bottom area of an 8-inch die is 3. 14 times the square of 4, which is 3. 14* 16.
The bottom area of a 6-inch die is 3. 14 times the square of 3, which is 3. 14*9.
The volume ratio of 8-inch mode to 6-inch mode is; 3. 14* 16/3. 14*9= 16/9= 1.78
Therefore, to achieve 8 inches, all the materials needed for 6 inches should be multiplied by 1.78. If we consider the loss and fluctuation, it is almost twice as much.