@WillAdams that is a good tutorial however if this is for a Z-Plus someone already designed this in Cc. Just search the forum and the c2d file was included in the post.
The user Jon Eckels originally posted the c2d file. I tried finding that post but could not find it.
Here is the post for an SO3 HDZ. SO3 XXL HDZ 3.2 Dust Tube Holder
Included was the C2D file to make the HDZ version but it was based on the Z-Plus version of Jon Eckels