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 Calculating curved slot's length on a cylinder Post Reply Forum
 Posted by: riviron ® 04/04/2008, 10:52:56 Author Profile eMail author Edit Hello,I am trying to figure out the length of a curved slot on one of our cylinders. I know the inner and outer diameter of cylinder, slot's length and width from the top view, degree of orientation of slot ends points. But I want to know the exact length of the curved slot along the outer surface of the cylinder. It is just like trying to calculate slot length on drill bits. But in my case the slot only runs for about 30 degrees.So if we were to take a drill bit and divide the oblong slot (360/30) the we will get exactly 12 equal sets of length. In my case since the slot does not run for 360 degrees let us say I just want to measure any one of the 30 degree oblong segment - what parameters do I need and what is the formula to calculate it.I think parameter needed are straight distance length and width from top view and outer diameter of the cylinder. I have those dimensions but do not know how to calculate it.