PlotClock 3d printed

PlotClock build based on Joo's original & Harlan's modifications

Modifications:
Expanded body for greater stability/durability
changed arms & wiper
made to use small screws I had on hand
holds a Quartet marker
use 10D nail for pivot on lift axis, little plug to keep it in if it's loose...
Mouser ears on body because one edge was lifting off my platform

note: error in comments for calibration as per http://www.thingiverse.com/thing:931498
// When in calibration mode, adjust the NULL-values so that the servo arms are at all times perpendicular NOT PARALLEL

Lift servo was reversed, I copied the section of code out of the sketch Harlan posted pertaining to lift only and pasted it over the original... to reverse the one servo.

Otherwise, I plan on using an Ardweeny as the brain, by expanding the case I should now be able to fit the brain in the box also. I haven't yet built a board for it with the pins and power filtration... likely I'll have to do it over again bigger as