I made this very simple center finder jig. There is alot of them out there, and this is my take on this. Easy to make and easy to use. :-)
Attachment 26145
Short video of how I made it
https://www.youtube.com/watch?v=kX2zBQX_sWI
Also this is my first post here, so... if this should be posted elsewhere, please let me know. Thanks!