I did many things today and am documenting them in this journal entry. Most of them were design revisions and corrections, along with designing something new.

1. Design secondary stem.
2. Revise the tertiary stem; add a hinge system to attach it to the quaternary stem.
3. Add a surface in the shifter to place hooks (below, in the primary stem).
4. Add a surface in the shifter to place hooks (above, in the primary stem).
5. Tag on the shifter (above).
6. Test the hinge system alignment and operation.
7. Stem supporters.
   (SS attached only for the top 4 tasks)