How to cut a fabric corner

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#1

I have a mold that has a 3 sided corner and is rounded, it is a female inside corner. All the edges of the corner have a 3/8 inch radius (9.5mm).

The fabric i’m using is 8 harness, 8.9oz fiberglass, and one layer of 2x2 carbon twill, 5.9oz. How would you cut the fabric/cloth so it lays down nicely around the corner with no pleats or creases? Also this is a cosmetic part so it would need to look visually appealing.

I forgot to mention it makes it somewhat easier because the three sides are on an angle, each side slopes down by about 7 to 10 degrees to the rounded corner point.

#2

This corner is so compounded with many curves i decided to cut the glass into two pieces, it lays down nicer now. Only “bad” thing is there is a cut line that will be visible on the finished part. So if you ever have to do this, make your cut lines very very clean and take your time, make several patterns until it’s perfect.

#3

dont’ forget to post pics;)