quilter's corner radius cutting guide (2.5in)
thingiverse
My wife is a quilter and uses these to cut different sized radius corners. She had bigger and smaller store bought versions but needed a new size for a pattern she was creating. The guide is lined up such that the flat edges are in the corner of the fabric then you cut along the radius with a cutting wheel and get a perfect edge every time. This has a 2.5" radius (5" diameter) and a hole for mounting to a peg board. You _could_ scale it for any size but the mounting hole might get wonky. The mounting hole is chamfered on both sides. To customize hers I embossed her company name into the top.
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