I am making an end grain cutting board, and for the edge treatment, I decided to go with chamfers. Now while the router left a nice edge, it did need sanding. I could have just used a sanding block and hoped I kept it perfectly on the chamfer face, but seeing as this face is only about 1/4″ wide, chances were good that the edges would get knocked down or rounded.
I decided to make a sanding block for sanding the chamfer, with a flat registration face and a sanding block face set off by 45 degrees. I mulled this over for a couple of days, and the resulting jig can be seen below.

Chamfer Sanding Block
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