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With the 3D print addon. Under Rigid Body -> Mass i have put the value of 5Kg. And Under object -> Rigid Body -> Calculate mass with a custom i have change value to 7200 (cast iron) as density given. Click on the value it suddenly change to 44.5kg. And i want 5Kg. How it works. Any suggestion whats going wrong, or help. Thanks

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  • $\begingroup$ This is a maths problem ? 6,172 [dm3] * 7,2 [kg / dm3] = 44,4 [kg] : ie scale your object by 1/8,9 times (44,5 / 5) $\endgroup$
    – Gorgious
    Commented Nov 12, 2020 at 18:50
  • $\begingroup$ @Gorgious if i scale all the measurement will go wrong $\endgroup$
    – atek
    Commented Nov 13, 2020 at 3:05
  • $\begingroup$ The title seems misleading. But for anyone who came here to find the answers for calculating the volume of a mesh look no further :) blender.stackexchange.com/questions/63113/… $\endgroup$
    – Harry McKenzie ♦
    Commented Jan 13, 2023 at 0:59

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