OK wood turners around the globe here is a sort of wood turning - TopicsExpress

OK wood turners around the globe here is a sort of wood turning question. Well, it involves segments of an ellipse. I needed to make an ellipse and I wanted to make it out of segments rather than use an entire panel of maple and my Archimedes trammel. I will use the trammel on the glue up of segments. I was hoping that there was an easy way to calculate 8 segments (2 sets of 4 identical ones). I consulted my circular work in carpentry and joinery book but did not find that info. Then Google, but I only found things well above my mathematical understanding. So I resorted to cad, drew it, divided it into 8 segments and measured the angles and lengths of the strait stock needed. That method works but I was hoping to just run some calculations like I do for a segmented round turning. Has anyone out there got the info needed for the calculation task? Thanks

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