Problem rigging a steam locomotive.
polycounter lvl 5
I've been beating my head against this for a few days, and I've been having trouble finding help on it. Hopefully one of you knows what's up.
I'm trying to rig a Walschaerts valve gear, which looks like this:
I've got a lot of it working, but I can't figure out how to get the combination lever (the mostly vertical bar between the wheels and pistons) to be influenced from both sides while attached to the valve stem (the upper piston) which it rotates about. This is what I have so far:
I've got one IK constraint on the large yellow bone + the two bones guiding the lower piston. I have another IK constraint on the small yellow bone all the way through the two bones controlling the upper piston. I just don't know how to influence that from the top as well.
I've tried adding another IK constraint to the bone beneath the highlighted radius rod, but I can't get it to work, and I think that might be the entirely wrong approach.
Any ideas?
I'm trying to rig a Walschaerts valve gear, which looks like this:
I've got a lot of it working, but I can't figure out how to get the combination lever (the mostly vertical bar between the wheels and pistons) to be influenced from both sides while attached to the valve stem (the upper piston) which it rotates about. This is what I have so far:
I've got one IK constraint on the large yellow bone + the two bones guiding the lower piston. I have another IK constraint on the small yellow bone all the way through the two bones controlling the upper piston. I just don't know how to influence that from the top as well.
I've tried adding another IK constraint to the bone beneath the highlighted radius rod, but I can't get it to work, and I think that might be the entirely wrong approach.
Any ideas?