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To fix a nose
Previously when commenting on design threads I've only ever mentioned in passing my preference for using geometrical methods, thereby avoiding the need for labourious trigonometric & arithmetical calculations in the design process. ( pi being a bit of an exception - sometimes.)
But I've never actually given an example of what I mean.
Seeing the fourth image in the above post (post 111) presented an opportunity to correct my omission, hence the attached .pdf .
Mike assures me this is useful and that he welcomes it being posted in this thread.
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