Reducer Coupling

Exercise: Reducer Coupling - Step 6
Hello. In step 6 of Reducer Coupling, after performing all required procedures, I believe, this does not allow me to select a new sketch on the flat face of the revolution labeled as A, therefore, I can not proceed with the exercise ;(…

Exercise: Reducer Coupling - Step 6
Hello. In step 6 of Reducer Coupling, after performing all required procedures, I believe, this does not allow me to select a new sketch on the flat face of the revolution labeled as A, therefore, I can not proceed with the exercise ;(…