Lego funfair

Hello thanx for the anwser This parts have I not see before I build all mine rides in 8 studs wide What is the daimeter from the gray racket when its round completley Its a good idea how can I upload my foto's and video's from mine rides its says its to big to upload

Hello I am new on this site I come frome Holland my english is not so good because it is school english I build funfair/state fair attractions I have build a huss breakdance ride and a transportable panoramo tower and now by my next project I will build a huss magic In this video can you see the mechanisme frome the ride. have any one idea how I can make this I am not a lego purrist I have many baseplates modified Kind regards legofunfair