A local company is looking to donate an Objet Eden 350v printer to my school district. The machine is very high quality, therefore the materials are expensive as well. I am in the process of making sure that we can sustain this machine with our budget. I am running into some problems when trying to determine how much material we would need to order. The machine takes 3.6 kg cartridges and these are the stats that I found for the material I would like to use. (Rigid Opaque Material)

Polymerized density ASTM D792 g/cm3 1.17-1.18

I would like to have the students design wheels for the CO2 cars that they build. Each student would print two wheels. The diameter on the wheels is 1 3/8" & the thickness can be no more than 5/8". http://www.kelvin.com/mm5/merchant.m...ct_Code=990166 <--to get an idea of what they look like.

Is there some sort of calculation that I can used based on the density of the printing material to figure out how much I would need?

Any info is greatly appreciated. Thank you!