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Walschaerts valve gear animation how to#
Walschaerts valve gear animation zip file#
Walschaerts valve gear animation driver#

Once complete, launch the game, have fun and play. BagnallPrice valve gear is a type of steam engine valve gear developed at locomotive manufacturer W.G. Be sure to disable any form of anti virus so no files get corrupted.

Walschaerts valve gear animation zip file#

Right click and extract the zip file with and run the setup application.

Walschaerts valve gear animation driver#

Mechanical linkages pull the valve stem to the leftĪ driver that causes the cylinder head to move as if it were driven by steam and a set of bones that match the actual mechanical linkages, down to parenting, should cause everything to behave properly. Once Grim Dawn is done downloading, right click on the torrent and select Open Containing Folder.

The piston moves all the way to the right.

This reverses the direction of the piston.

Once the valve stem is all the way to the right, the direction of steam reverses.

As the piston approaches the end of the cylinder the various mechanical linkages pull the valve stem to the left.

Steam enters, pushing the piston to the left end of its cylinder.

Using the animation from wiki starting with the valve stem all the way to the right end of its cylinder, the piston end of the cross head in the middle of its cylinder I'm not good at drivers, but what I think you need to do is match the actual cycle more closely. In an actual valve, the motion is more complex I think the problem is that you have the valve stem and crosshead rigged to move together. I basically have one rod, and each end needs to be acted on by a different IK constraint. I've tried adding another IK constraint to the bone beneath the highlighted radius rod, but I can't get it to work.

Walschaerts valve gear animation how to#

I just don't know how to influence that from the top as well. I have another IK constraint on the small yellow bone all the way through the two bones controlling the upper piston. I've got one IK constraint on the large yellow bone + the two bones guiding the lower piston. The point where the valve stem attaches to the combination lever must not move vertically on the z-axis, but does need to move horizontally along the y-axis, which is what controls the valve stem. I've got some 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. I'm trying to rig a Walschaerts valve gear, which looks like this: