where's that marble formula thread?

[PyroChixRock]

Anyone remember that marble formula thread that had the formula for how many 1 inch marbles it took to make a 2 inch one, 4 inch one, etc. I can't find it, hoping someone out there can help.

[ALIEN!]

interesting topic, in my experience, it takes about 4 one inch marble's worth of glass to make a 2 incher. Hope this helps. Cosmo might be a good guy to ask...

[kilgroth]

Using 4/3 * PI * R^2

Volume of 1 inch marble
0.523598776

In a 2 inch marble there are eight 1 inch marbles

3in marble there are 27 1 inch marbles
4in marble there are 64 1 inch marbles
5in marble there are 125 1 inch marbles


This may be calculated as (diameter of marble) cubed.

[Emmett's Glass]

It takes about 9 in of 1.25 in rod to make a 3 in marble.
E

[PyroChixRock]

woot, that's the one i meant. thanks, kilgroth! repped.

[PyroChixRock]

anyone find the diagram that goes with this formula that was floating around?