Working on the fine adjustments of the cam followers to finalize motion - a tedious job for large fingers! But the end is in sight. Of course I made a goof which required rework of a mechanism - there are always things to learn!
I decided to use a bone for the crank handle in keeping with the garbage can setting. Progress will pause for a days till I get back to my shop.
Thanks to a note from Philip Lowndes my counterweight for returning the turning heads works well.