Hi Guys,

I am learning Houdini and currently running a car wheels motion travel setup.

The setup consists of front and rear wheels.The wheels follow a pre-defined curve of 107m total length.

I would like to run the wheels along the path, but when I orient the wheels i get the wheels to lose contact from the curve path.

Stage 1. The wheels run in a horizontal plane. ( Runs Fine)

Stage 2. The wheels run in a decenting plane ( 800mm down).The problem is that the rear wheels have pivot axis from the follow path position. so the wheels start to move away from the curve before the decent starts as seen in second image.

please could some one tell me how do i make sure that the both wheels are in contact to the curve and also runs maintaining same distance.?

I am doing for an university project regarding water drive through later.