### How to calculate the flat form of a flight of screw

Re: How to calculate the flat form of a flight of screw conveyor. Then the inside developed diamater, B = square root of [ (PI*d)^2+ (P)^2]. - Value of PI = 3,1415926 So the developed inside radius of the flight will be: r = R-b => b=R-r; b/r= (r-R)/R - 1o step R/r=A/B; (R-r)/r= (A-B)/B - 2o step consider that R is the developed outise radius.

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