Test Jig #2 - Clock Script

This is the clock script for the current version of the test jig, which has been improved based on feedback from rustedrobot who printed out several iterations of the printable clock project, and several other makers on thingiverse with particular expertise on gears.

Current development version to be found on git hub here:
github.com/syvwlch/Printable-Clock-Project

It requires my clock builder script, which in turn requires the MCAD/involute_gear library and my clockwork library.

Particular improvements include:

1. herringbone gears, with suitable clearances.
2. no concentric shafts, no hands.
3. lowered pressure angle (14.5 degrees instead of 28).
4. minimum number of gears needed to test the escapement.
5. flanged drums on all wheels.
6. escapement/pendulum shares a shaft with the gear-train.
7. two-piece, connected frame to hold the shafts without applying pressure to the gear train.
8. thicker gears.
9. minimal sleeves to ensure clearance.

(UPDATE: if run us