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 August 12th, 2018, 09:06 AM #1 Senior Member   Joined: Jan 2016 From: Blackpool Posts: 104 Thanks: 2 Maths real world application simple problem I have a circular pipe that is 175 mm in diameter that fits through a stainless steel plate. The pipe fits through a cut out in the plate which has a diameter of 183 mm . The pipe will fit through the plate with 2mm to spare all round when the pipe is perpendicular to the plate. I am trying to fit the pipe through the plate at an angle of 22.5 deg. so it does not fit ! ! need to enlarge the hole in an a considered way. I am not sure what size the new aperture should be or even if it should be a circle or an ellipse Thankyou guys.
 August 12th, 2018, 09:40 AM #2 Senior Member     Joined: Sep 2015 From: USA Posts: 2,505 Thanks: 1374 the new hole will be an ellipse. we'll need the plate thickness to continue. but honestly in the real world I'd get out a round file and just work the plate by eye until the pipe fits. Thanks from Country Boy
 August 17th, 2018, 03:00 AM #3 Senior Member   Joined: Jan 2016 From: Blackpool Posts: 104 Thanks: 2 the steel plate is 5mm thick

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