Frenkie Posted July 8, 2009 Posted July 8, 2009 I feel so stupid, but here goes; I need to draw an angle with this given; lenght 80 mm and angle 1:16. Anyone help me out of my blackout? Quote
lpseifert Posted July 8, 2009 Posted July 8, 2009 Here's one way... inverse tangent (maybe Arctan? I can't remember) of 1/16 = 3.57633 degrees so... Command: line Specify first point: 0,0 Specify next point or [undo]: @80 Quote
Rob-GB Posted July 8, 2009 Posted July 8, 2009 Just as an aid to those like me who have a hard time remembering how to derive stuff like this a quick way is to draw it out 1:16 or 1:27 as required then dim the angle like the example below: these sort of solutions are often implemented in joinery workshops when determining angles for cills or dovetails etc. Quote
skipsophrenic Posted July 8, 2009 Posted July 8, 2009 Also details like this are used in rail to show gradients. :wink: Quote
Rob-GB Posted July 8, 2009 Posted July 8, 2009 Also details like this are used in rail to show gradients. :wink: It is definately "old school" but it works, I suspect the system is used by people in remote places who have never seen a math book. In boat building there is a system called "Tick Sticking" for marking odd shaped timbers or panels, it's been around since "man" progressed from dugouts and rafts, I wish I had known it while working in the Hundertwasser Haus in Bad Soden, Germany, would have saved me a lot of hard work (and rude words.. ) Quote
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