Who is good at math? I want to figure out how many liters by volume my "tub" core mould will hold? Then I can figure out 60-70% of that is how much perlite I need, in liters, which is how the perlite is measured and bought, by the liter , by volume.
My core is 16" x 32" x 20"
That's 10,240 cubic inches?
My burn chamber is 20" x 6" x 6" = 720 cubic inches
My riser is (Pi) 3.14 x (Radius) 6" x (length) 14"= 263.76 cubic inches?
My core mix volume does not include the feed or burn chamber or riser, so I will subtract them from the total tub volume 720+324+263.7= 1307.7
How many liters fits into 10240 -1307.7 = 8932.3 cubic inches?
I feel confident that my math is good, EXCEPT for the riser, I'm sure that my math there is wrong.
Any input or help from any math whiz? I'm trying to figure out how many liters of perlite makes 65% of my core volume...
1 square =1" on my diagrams
I will mark this thread as RESOLVED after I get some help , thanks in advance, anyone with good math or casting experience
the riser will be cast separately from the core. but the riser will be 6" inside diameter and 8-10" outer diameter with a permenant outer mould form also. the riser should be easy i just want to know if my 65% perlite math is correct and i will focus on this core first.
14" is my thin grease barrel bell outer diameter, and those smaller barrels are about 26" tall, so my cast rise will in turn be about 24" long, exactly 2ft from the top of my core, will be the top of my riser. But there is also 14" of vertical riser built into the core itself. There will be a small volume of the same ingredients going into the cast riser, but the volume there will be only a fraction of this massive cast core volume