Best Way to rig a Gold Chain

funky · **Joined:** 16 Jun 2009, 09:47 **Posts:** 8

Hi,
Please i would like to know which way would be better to rig a gold chain like this?

Thanks for help.

EricTRocks · **Joined:** 25 Nov 2009, 02:41 **Posts:** 472

It would depend on if the chain was connected at the ends but I'd say it'd be best left for a rigid body sim unless you need a really specific movement.

Hirazi Blue · **Joined:** 04 Jun 2009, 12:15 **Posts:** 3204

If you do decide to use a Rigid Body Simulation, you might want to look at the original Open Source version of Momentum (which you still can find at the local backup of rray.de if you search for "Studionest Momentum"). The local backup zip-file includes the sample project, which includes an example of a chain setup with RBD, IIRC. If and when you decide to go the Momentum route, you could check the commercial Exocortex Momentum at a later time as well...

funky · **Joined:** 16 Jun 2009, 09:47 **Posts:** 8

Thank you guys for your replys.
I don't know if I will go on Rigid Body Sim, because I just need it for a print (no animation). I'm just trying to get the best and faster way to make the chains interacting together when i will decide of the general shape.. Don't know if Im clear..

Nems.

SamHowell · **Posted:** 05 Jul 2012, 14:23

Well in that case just constrain one link to a curve and duplicate along it. Roll every other link 90 degrees.

Move your curve points around until you are happy with the position.

Something like this

Code:

Application.SICreateCurve("crvlist", 3, 0)
Application.SIAddPointOnCurveAtEnd("crvlist", -2.71952817824377, 0, 0.773833791090281, False, 0, "")
Application.SIAddPointOnCurveAtEnd("crvlist", -2.27391874180865, 0, -0.839412925929718, False, 0, "")
Application.SIAddPointOnCurveAtEnd("crvlist", -1.15989515072084, 0, -0.878760406832644, False, 0, "")
Application.SIAddPointOnCurveAtEnd("crvlist", 0.281782437745741, 0, 0.406590635996297, False, 0, "")
Application.SIAddPointOnCurveAtEnd("crvlist", 1.3302752293578, 0, 1.46897262037532, False, 0, "")
Application.SIAddPointOnCurveAtEnd("crvlist", 2.99475753604194, 0, 0.249200712384591, False, 0, "")
Application.SIAddPointOnCurveAtEnd("crvlist", 3.75491480996068, 0, -0.68202300231801, False, 0, "")
Application.CreatePrim("Torus", "MeshSurface", "", "")
Application.SetValue("torus.torus.radius", 0.248, "")
Application.SetValue("torus.torus.sectionradius", 0.099, "")
Application.SelectObj("torus", "", "")
Application.ApplyCns("Path", "torus", "crvlist", "")
Application.SetValue("torus.kine.pathcns.tangent", True, "")
Application.SetValue("torus.kine.pathcns.dirx", 0, "")
Application.SetValue("torus.kine.pathcns.diry", 0, "")
Application.SetValue("torus.kine.pathcns.dirz", 1, "")
Application.SetValue("torus.kine.pathcns.upvct_active", True, "")
Application.Duplicate("torus", "", 2, 1, 1, 0, 0, 1, 0, 1, "", "", "", "", "", "", "", "", "", "", 0)
Application.SetValue("torus1.kine.pathcns.perc", 2.862, "")
Application.SetValue("torus1.kine.pathcns.roll", 89.208, "")
Application.SetValue("torus1.kine.pathcns.roll", 90, "")
Application.SelectObj("torus1", "", True)
Application.Duplicate("torus1", "", 2, 1, 1, 0, 0, 1, 0, 1, "", "", "", "", "", "", "", "", "", "", 0)
Application.SelectObj("torus2.kine.pathcns", "", "")
Application.SetValue("torus2.kine.pathcns.perc", 6.07, "")
Application.SetValue("torus2.kine.pathcns.roll", 0, "")
Application.SetDisplayMode("Camera", "shaded")
Application.SelectObj("torus2", "", True)

funky · **Joined:** 16 Jun 2009, 09:47 **Posts:** 8

Excellent SamHowell !!!! Thank you very much :ymapplause:

Nems.

SamHowell · **Posted:** 05 Jul 2012, 14:50

Post us a nice picture when your done.

funky · **Joined:** 16 Jun 2009, 09:47 **Posts:** 8

Ok SamHowell, I will do it

Thanks again.
Nems.

Best Way to rig a Gold Chain

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