Hi there!
I've been doing a wee assignment for college which involved the drawing of a golf ball in inventor. Creating the ball its self was no trouble but the fun started when it came to put the dimples on the outside.
After a bit of searching i found this post in Customer Files;
A nice effort and pointed me in the right direction and enabled me to complete my drawing.
Seeing as this was 5 years old I've included a copy of my attempt here as I can't seem to post in the Customer Files myself. So if anyone who can post there would like to upload this for me it would be appreciated.
Ball dia. = 42mm, Dimple dia. = 3 mm and 0.5mm depth.
Hope this helps someone 
Jonny