Can anyone help me how to draw a detailed drawing of Ferris wheel in PTC Creo or autocad or NX? specially I need the dimension of shaft of ferris wheel and seat for the ferris wheel.

In my final year project, our project guide have assigned us to analysis safety of ferris wheel shaft. For this he has asked us to draw a detailed drawing of real ferris wheel in any software, but I only know some basics of PTC creo and Autocad. and I have no idea about dimension of Ferris wheel. We have asked project guide about dimensions but he told us to do it by ourselves. so we are helpless now. Thus, any help from you will be useful to us.