How Much Resin to use for 50mm Sphere This topic has 1 reply, 1 voice, and was last updated 3 years, 3 months ago by Katherine Swift. Viewing 1 reply thread Author Posts September 15, 2021 at 7:52 pm #100198 Lisa VornhagenGuest I just bought a 50mm sphere from Resin Obesession and need to know how much resin to use. I can’t find a calculator for a sphere. September 16, 2021 at 12:19 pm #100262 Katherine SwiftKeymaster Hi Lisa, I used a volume calculator here: https://www.omnicalculator.com/math/sphere-volume There are 30 ml in an ounce, so it looks like you need a smidge more than two ounces of mixed resin to fill the mold. Author Posts Viewing 1 reply thread The topic ‘How Much Resin to use for 50mm Sphere’ is closed to new replies.