PlotClock 3d printed

thingiverse

PlotClock build based on Joo's original and Harlan's modifications Modifications: Expanded body for greater stability/durability Changed arms and wiper Made to use small screws available Holds a Quartet marker Uses 10D nail for pivot on lift axis, little plug keeps it in if 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 NULL-values so that servo arms are always perpendicular NOT parallel Lift servo was reversed, I copied the section of code from Harlan's post 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 to fit the brain in the box also. I haven't yet built a board for it with pins and power filtration... likely I'll have to do it again bigger since that's how it works. I am running it currently with an Arduino Duemilanove. Using USB power for the brains and a separate USB wall wart to power the servos. First attempts to use USB power only resulted in resets and strange action. I'm guessing I will need to add some caps to filter out noise from the steppers. I think handwriting gets worse with each generation. I had hoped stabilizing the servo arm with two pivot points would make handwriting better but it looks like I'll really just need to learn to code font better if I want to do that.