Engine & runtime
Carton packing physics
Drop the real solids in and find out what the spreadsheet got wrong.
What this is
A Rapier rigid-body simulation of products dropping into a carton. Measures where they actually settle, rather than dividing one volume by another.
Carton volume ÷ product volume is wrong by 25–45% for anything round, because it ignores the void space between objects. Dropping the actual solids in and measuring the fill height is how you get a number worth quoting to a 3PL. Run it twice: if two drops disagree by four units, the carton spec is not robust and the packing instructions matter more than the maths.
Things worth trying
- Compare the spreadsheet estimate against the packed result for bottles
- Drop friction toward zero — denser packing, worse transit behaviour
- Re-drop a few times and watch the count move; that variance is the finding
- Overfill until the outline turns red and the lid stops closing
Bring us the product you were told could not be configured.
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