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Mechanical Linkage Question - GMAX IK

R

Ryan1966

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ca-ontario
Here's something I'm working on, and it seems I've hit a brick wall.:confused: I am modeling a GMAX airplane model which has an extremely detailed suspension linkage. It consists of a wheel on a suspension arm that moves up and down and is dampened by a damper.

It also consists of a pushrod for steering - a rod that pushes the wheel left and right. This rod is connected to the steering linkage on one end, and to the wheel on the other end. So, this rod moves the wheel left and right, plus it moves up and down with the wheel suspension. One end of the rod is attached to the wheel that moves up and down, and the other end to the steering linkage that moves right-left.

I'm using L_Gear_ and Rudder_Key_L_ prefixes for the components, and while I have set up IK correctly (and in many different permutations), I can't get the pushrod to obey both the up/down motion or left-right motion. It's either/or, but not both. When I assign L_Gear_ prefix to the pushrod, it works well in unison with the wheel but loses the reference to the steering linkage, and when I use Rudder_Key_L_ prefix, it moves properly with the steering linkage, but no up/down motion that would follow the wheel. Does anyone have any ideas on how to set this mechanical linkage properly?

Thanks,
Ryan
 
IK doesn't work in fs2004, you would use forward kinematics only (child part follows parent).

Your pushrod part needs to either:
(1) be a child of a part with one animation (rudder) and parent to the second (gear)

or

(2) be given a gear animation to keep it in step with the gear and given the gear prefix

note that if you were using fsX you could make the IK part a child of stearing and a parent of gear and it would follow both
 
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