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I'm trying to make arrows fall onto a table, in order to dispose of them on the table randomly. So I enable collision/rigid body on the table, passive mode, and add collision/rigid body on an arrow, active mode. But when I hit alt+a, nothing's happening, and the arrow won't move an inch. I don't remember having to use anything more to get it to work, but surely I'm doing something wrong ? What I am missing please ? Thank you for your help

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Scale problem. Since I also used Blender for 3d printing (with scale unit configured at 0.01), all my 3d objects use this scale, and it seems to affect rigid body behavior. I was able to get around the issue switching back to 1 scale unit. It's still not working properly but it's sufficient as for now.

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    $\begingroup$ FYI, unable to reproduce the problem here, with a simple setting and the same unit at 0.01 $\endgroup$ – lemon Mar 6 '17 at 9:15
  • $\begingroup$ Ah, that's because I didn't explain properly. I usually use 0.01 unit scale and my startup script is setup with it , but since this project was different, I changed it along the way as I was modeling. That was not a good idea since I think I messed up some things (for example, I need now to switch to 10 scale unit in order to see the grid in the scene). Long story short : it's a setup issue on my end, and until I figure what I'm doing wrong, I don't think anyone could help me. At this point, only sharing the blend could help me I suppose. Anyway, thank you a lot for trying. $\endgroup$ – mediaklan Mar 7 '17 at 10:24

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