Reply by sras

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Posted on How do I make a corner radius on a NON-90-DEGREE corner???

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5591 posts in 4010 days

#1 posted 01-31-2018 06:24 PM

One of the tricks when hand working a radius is to mark a line on each side that you can rasp/file a 45 degree chamfer. Then mark guide lines to file the ridges down. At this point you have 3 filed surfaces – hand work by eye/feel into a radius.

For a 3/4 inch radius on a 90 deg corner, the first pair of lines would be 0.44 inches from the corner.

After filing the chamfer, then mark a set of lines 0.16 inches from each side of the new corner.

Your numbers would be a little smaller since you are dealing with less than 90 degrees. But then you don’t need to be exactly at 3/4 inch radius.

-- Steve - Impatience is Expensive

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