I really liked the shape of the original design, but it seemed like a slightly longer top arm (by 1 cm) fit better on the seats of my RAV4.I've included the Blender file in case it's convenient for anyone else, but it's just where I imported the STLs to modify them. Printed fine for me on an Orion Delta without raft, sliced with MatterSlice with support at a 20-degree angle.