OK Curtis, Here are the pictures.
First is a shot of the Grinder, feather clamp, and two spacers. I used a 1725 rpm motor that was a freebie (had to do some very minor repair work on it) and made a bracket to mount it. I bought an arbor at Ace Hardware to fit the shaft and then screwed a drill chuck onto that to hold my drum sander. Everything but the arbor was scrounged material.
Next is the feather in the clamp after stripping off one side. You always grind the back side of the feather off, not the top.
First I grind off the back using the narrow spacer.
Next I flip the clamp on its side, put in the wide spacer, and grind the flat. After this pass you can use a sanding block and fine sandpaper to put a smoother finish on it if you want.
Here is a closeup of the last shot.
You don't want to put too much pressure against the sanding drum or you will just fold the edge over the clamp and use a vacuum or dust collector unless you like the smell of semi-burnt feathers.
Dennis