http://www.bvmengineering.ac.in/docs/published papers/mechprod/mechprod/601019.pdf Hi On above given website address, a pdf file is located in which method of modelling spur gear in pro e is mentioned. I think this method has some error or something missing, because it gives error when i try to model. Please if anybody and did not find any error then i shall tell where it gives error to me..........

Hi! I have had a look at the paper and there is certainly an error in the equations labelled (1). The X and Y are the wrong way round and there should not be a factor pi in the second term. If the angle C is in radians, then there is no need for an extra factor. I hope that this helps !!!