Name:  IMG_20170405_205328.jpg
	Date:  2017 Apr 05
	Size:  1.37MB
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    Bevel the inside of a perfect circle at 45 degrees
    Support ring was rough cut with a jig saw
    ring screwed to scrap plywood  
    center is found close enough.
    router bit is a 90 degree vee.
    Made a trammel compass for the router from 
    rods out of an old printer and aluminum blocks.