As you can see, the disk has a marker over it. The marker usually works fine, but for some reason sometimes when I throw the disk the marker starts bobbing up and down, even though the disk is moving smoothly.
If anyone knows why this could be happening I’d appreciate it!
Most likely it’s bobbing up and down because it’s rotating. And the Marker is attached to the rotating part, which changes the position ever so slightly. Adding an attachment to the center should fix it.