I am getting the machine to draw but have a couple questions.

1) I am not able to change the settings in the "Controller' software, other than the serial port. I have tried running it under both Linux Mint and WindowsXP. Perhaps I don't understand the process. As a work around, I manually edited the config file and set the defaults in the Arduino Sketch before compiling. The correct values are showing up on the controller screen when I download them. I thought about recompiling the Controller SW but, if I understand the comments, it may not compile under the latest version of Processing.

2) The pen lift servo does not seem to be working. I am using a MEGA with the V2 Adafruit Shieid. I checked the servo function with the example Arduino Sketches and its working. I am using the latest MEGA-Adafruit sketch that I modified to work with the V2 shield. I haven't dug into the code, yet, to understand the port assignments and will do that next unless someone can suggest some troubleshooting ideas.

3) Is there a list of the raw commands sent to control the machine. I'm not readily finding it.

This is quite a fun project. I have built a 3-printer, CNC router, a polargraph -- what next -- "a flux capacitor?" Thanks to Sandy and all those who are contributing.

Jack

Not sure what you mean - not able to change the settings. Please say what you tried, and what happened when you tried.

Good news re servo connection!

sn

Aha yes you've got to drag to change the values in the number spinner. It's not that clear, I know, and even less obvious on a touchpad.

16x microstepping is the default on the Adafruit v2, you can either set your stepsPerRev to 200 and then set the stepMultiplier to 16, or you can leave stepMultiplier at 1 and set your stepsPerRev to 3200 (16*200) if you are a masochist.

sn