I had been waiting for the Blender Knife tool to support cutting edges that don’t belong to a specific face and snapping to orphaned vertices. Both these operations are important for laying out an accurate mesh structure, but still sadly lacking from Blenders tool-set.
It looks like it will be a long time before these features become available again so I have had to bite the bullet and modify the 608 Bearing Tutorial to suit Blenders current tools. Hopefully you will find the modified tutorial useful.
Get the Tutorial Here