If you get the angle set right you have very little sanding to do. You can make different shapes by stacking the rings from different boards to make vases and pitcher. It works by two cutters one on each side of the board that you dial the cutter 1/2 way through the board with one direction then turn dial the other way and the other cutter cuts from the other side of the board till you cut all the way through. Then you stop the machine remove the ring you just cut, pull a pin out , slide the sled to the next pin hole and keep doing it till your down to the size of the bottom you want. Then you stack and glue them together and by using different types of wood you can make each ring a different color by using light and dark woods. Since you index with the pin in preset holes every ring from every board will be the same size for each diameter you cut so you can mix and match what you want.
I thought I got a deal by only paying $40.00 for mine but Robert got a better deal. I figured for $40.00 the motor was worth that, but after you start playing around you can make some interesting stuff.
Scott