It could be that you want to add down thrust, right thrust, or both to a motor mount. I happen to have a 10″ disc sander that makes the job easy. Set the table for 3° down and the miter to 3° right. Sand off just enough from the front of the power pod, then glue the firewall in place. Of course you can make these measurements to suit your needs. Just recently bought a 5″ disc sander from Menards and I plan see if the smaller sander will allow me to do the same.