Making fender washers out of acetal sheet, the jeweler's way.
My wife is a jeweler as well as an avid sailor. So when it came time to making fender washers for shimming our rudder blades and tiller handles, she had the method and the tools to get the jib done.
We used 0.0625" acetal and her round punch tools. The entire process runs from upper left to lower right.
In the first two frames she's punching out the center hole, centered on some dots we'd made with magic marker.
The next three frames show the tools for re-centering the material in a larger hole. She uses a cone-shaped cylinder to locate the hole she'd already made in the larger slot, then locks the tool down.
The next two frames show her punching out the outside diameter of the fender washer.
The last frame shows the finished fender washer, ready to use. She made twelve of these in short order.