Posted by Crazy Horse on January 23, 2018 at 08:39:55 from (75.159.240.214):
In Reply to: Machining Question posted by Fritz Maurer on January 23, 2018 at 08:23:12:
Actually, this is the method that I knew already, those other methods are new to me. With this one, you can use a compass to build your perpendicular bisectors (like they do in the diagramatic video in this link) ..... but you can also do it with a right-angled plastic triangle and a ruler (and no compass). Just measure the chord you have drawn in and find the halfway point, then use your plastic right-angled triangle to construct your perpendicular bisector line. Do the same to the other chord and where those two bisectors intersect, that'll be the center of the circle. Once again, as accurate as your measurements and techniques. There are probably a number of other ways as well, not sure about that.
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