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August 12th, 2018, 10:06 AM  #1 
Senior Member Joined: Jan 2016 From: Blackpool Posts: 100 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, 10:40 AM  #2 
Senior Member Joined: Sep 2015 From: USA Posts: 2,197 Thanks: 1152 
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. 
August 17th, 2018, 04:00 AM  #3 
Senior Member Joined: Jan 2016 From: Blackpool Posts: 100 Thanks: 2 
the steel plate is 5mm thick


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