plot thermometer / clock EXPO chisel pen parts

This is a remix based on my Expo fine point parts, intended to fit the larger chisel style Expo dry erase markers. To use this you will need to print the rest of the parts for a plot clock. I liked smily77's "V2" arms and PIR mount:

https://www.thingiverse.com/thing:371248

...and I liked the main housing, servo housing, and cover plates from stylesuxx:

https://www.thingiverse.com/thing:940737

If you haven't seen my code revision for plot clocks, please see this page:

https://www.thingiverse.com/thing:3056567

My 1_1c version adds some features and tweaks for an overall better experience.