nukecad Posted October 25, 2020 Share Posted October 25, 2020 14 hours ago, steven-g said: Have you tried??? No I hadn't. Quote (don't have CAD here but it's 1.625" if my triganometry brain is still working) Obviously my trigonometry brain wasn't working properly, and I admit that I got the calculation wrong. My apologies to all. Not sure just where I went wrong (cotan instead or arctan on the calculator maybe?), I was expecting the dimension at the centreline to come out at a 'round' number and when I got 1.625 I thought 'bingo' and didn't double check it. I agree that it should be 1.7321 as in eldons drawing. The correct calculation is simple; 2.8146 - (0.625 * tan60) = 1.73206 (Now for my own curiosity/satisfaction I'm going to have to spend an hour or so trying to replicate just how I calculated it wrong). It still seems strange to have the tube/pipe length dimensioned to 4 DPs when it isn't even positioned that accurately. And PS. Now that I'm on my laptop I can also now see that second lug/hole in hidden detail on the sketch, must have been the resolution on the other device that wasn't showing it. Quote Link to comment Share on other sites More sharing options...
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