Multi-Stage Hydraulics.

[Larky]

I kinda have it working with expressions, but it's not exctly perfect. Any help wit this woul be greatly appreciated.

Larky.

[verbal007]

It hard to tell exactly what you're asking. Pictures would make it a TON easier to understand.

However, you said hydrolics... and when I hear that, I think about point/aim constrained cylinders. Have you tried that yet?

See attachment (move around Ik Handle to see hydrolics in action)

Hope this helps.


- Jeremy

[westiemad]

jeremy imagine the hydraulics we did before, but add another cylinder inbetween those. Its a pain of a problem.

AnDy

[verbal007]

Originally posted by westiemad
jeremy imagine the hydraulics we did before, but add another cylinder inbetween those. Its a pain of a problem.

AnDy

You mean like this? (see attachment for 3 mins of work) Not much different really. Hope I'm understanding the question correctly.

- J

[westiemad]

pretty much, all the cylinders should fit inside each other, imagine and old telescope, but I guess thats no different to what you have :). Its got a twist on it for some reason, I must get back to playing with maya, oh the pain :). Good work m8.

Can you give me a brief idea of whats constrained to what, and hows your reel going?

AnDy

[Larky]

Hi.

That is exactly what I am after, I thought I had it sorted the other night but my brain had indeed melted!

What is pointing at what exactly?

Many many thanks.

Larky.

[verbal007]

No problem.

The easiest way to see it, would be to take a look at the hypergraph.

Basically it's the same as the first example I uploaded, but this one has an additional tube that is point constrained to BOTH locators and aim constrained to only one of them.

It's a beautiful day out and I've spent WAY too much time in this basement already. Besides... Movement (http://www.movementfestival.com/) is this weekend. ;)

If you need more details, PM me or somethin... but the hypergraph tells it all, and it's really fairly simple.

- Jeremy

[Larky]

Hi.

Thanks for all the help so far. I can get it working the way you say, that isn't a problem, but I get rotation errors. When I tranlsate the bottom or top cylinder, the oppostie and the centre cylinder twists around Y. Locking attributes etc doesn't work.

Time for a beer!

Larky.

[verbal007]

Ah... forgot to set that up. Go into the options for the aim constraint that is on the center cylinder. You'll need to change the "Up Vector". I recommend tying it to an object that is directly above it in the hierarchy...er... or abouve the objects that it's constrained to.

Try the elbow.

Hope this makes sense. Limited on time here... just came home to find my basement (room) flooded. Luckily my computer was on the opposite end... shuttin down for the weekend.

- Jeremy (the most unlucky SOB)

[Larky]

Ahha! Many thanks dude.

Hope you get your basement sorted.

Larky.

EDIT: No, it still refuses to work! No matter how I tweak it I get small amounts of rotation. Such a simple problem, such a pain in the arse!

[verbal007]

Originally posted by Larky
EDIT: No, it still refuses to work! No matter how I tweak it I get small amounts of rotation. Such a simple problem, such a pain in the arse!

Hmm... forgot to mention that you would need to change the Up Vector from Y to Z (put a 1 in the Z field and a 0 in the Y field). Here's the fixed example (see attachment) with a checkerboard textures so that you can see that the rots line up.

Ciao.

- Jeremy

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