Modeled the base containing the servo/Arduino.  

The print head caught the part very near the last layer which failed the print.  It was almost salvageable, but not quite.

It's all good though, because the servo slot I modeled was way too tight anyway, and I never reconfigured Cura from the settings I had used for the nylon petals.  The result was over-extruded and 30 degrees over-temp for the printing of PLA.  I'm surprised it worked as well as it did.

Remodeled.  Sliced. Reprinting.