Barred fletching belongs on wooden arrows in the same way that a taut string belongs on a bent stick. These form such a perfect union and yield such a timeless truth that Moses didn't even bother to write it down.
If I don't have at least one barred feather on a wooden arrow, then I've got a second-class arrow. I wouldn't ask it to do first-class work. But who wants to pay the going price for barred fletching, provided he can even find some for sale?
One of the attractions of our sport is that it teaches if you don't have what you need, you probably can and should make it. I think it was no less a champion of the American wild turkey than Benjamin Franklin who cautioned against early trends toward consumerism with this warning: "Don't buy nothin', don't throw nothin' away, make whatever you can."
So gather up discarded turkey and goose wings from hunting buddies. Because in the spirit of our sport, the spirit which believes personal growth attends the acceptance of total personal responsibility, what follows are directions for making a simple feather grinding clamp and instructions for grinding precise and exact fletching.
As you toil at making beautiful arrows, you'll be reminded of Maurice Thompson's spiritual guide Tommy and his observation: "Any stick do for bow, good arrow damn heap work." Don't be discouraged. There is a big difference, which our language tends to ignore, between making arrows and assembling them. Remember the quality of Tommy's arrows and that he once "gave the finest exhibition of archery... perhaps ever seen by anyone." Though it may appear that you are laboring after arrows that persuasive consumer arguments urge you to buy in component form, if not altogether readymade, we both know that you are building much more.
I use my clamp on a drill press with about a 60 grit 3" drum sander. It allows grinding the quill on two edges. First, it makes the quill on the "bottom" or glue edge a uniform thickness; then, by flipping it 90°, it grinds off the "overhang" along the inside curve of the feather.
If you don't have access to a drill press, you can use the clamp with a belt sander moored sideways on a plywood platform that extends to provide a work table. Shim to raise the sander enough to get the height of the clamp body under the belt.
You can also enhance the accuracy of your grind by fashioning a thin hardwood insert with a gentle arc slightly less than the length of the sander's platen and slightly wider than the width of the belt. Slide it between the platen and the belt. Normal belt tension will hold it in place when you turn the sander on, producing a convex surface to grind against.