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Piston control of Crane via Xpresso

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Alex ReardonPiston control of Crane via Xpresso
by on Nov 14, 2011 at 9:46:57 pm

Dear All,
Its "bashing my head against the wall time" again.
I am attaching a file with a piston driven crane which is set up to move a light weight LED wall for a pitch I'm making for a certain touring artist. I can xpresso everything I want EXCEPT that I can't figure out how to rig the crane to elevate.
I want to add a user date of "Up / Down" and have the crane rigged so that the two pistons and the arms move as linked. I've tried connecting hinges (but I can't get them to do anything but go red). I've thought about an IK chain through the two arms, but how then would I connect the pistons?

Any help, will, as always be most gratefully received.

-Alex Reardon-
ReardonDesign.com


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Brian JonesRe: Piston control of Crane via Xpresso
by on Nov 14, 2011 at 11:36:16 pm

you have to copy and paste the link they give you at the end of the process of uploading back into the post


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Alex ReardonRe: Piston control of Crane via Xpresso
by on Nov 14, 2011 at 11:55:08 pm

Ah, I'll remember that for next time, but I seem to have got it sorted out. Finally! two days of grief and suddenly eureka! :-)


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Brian JonesRe: Piston control of Crane via Xpresso
by on Nov 15, 2011 at 12:52:26 am

good to hear, love those eurekas


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