I've been noticing a lot lately that the unicorn pen plotters are getting more and more popluar everyday so I went out and hacked my ABP to allow for fully automated unicorn pen plotting. Basically to give you a summary to how it works. I wrapped paper around both of the axels on the ABP and the motor pulls the paper off of the rear axel like a scroll to a new section of paper to print on. Simple yet very innovative. Video: http://www.youtube.com/watch?v=uYglk0bTeQs sorry for bad quality it was taken on a flip video recorder.
You may now download and test this code. In order to use this python script, replace the context.py file in your scribbles folder where the orginonal context.py is. Change the name of what ever context download to context.py because that is the name of the file the script will look for.
In order to follow through with the ABP unicorn pen plotter hack your going to need to use the following scripts (replactments of context.py):
NOTE: These are still experimental!
context.py - just an updated version of the gcode output that will add a motor function to the ending of the gcode and go to beginging of gcode and continue (using the M30 code) on with what it just printed. It will prompt you on replicatorG with a yes or no option. yes = go again / no = stop printing.
context2.py - This is another version that uses the M01 code to go back to the top of the gcode and continuesly, It will ask you on screen if you want to continue with another print.
context3.py - Uses M03 command...don't know 100% what it will do. Download and try it for me!
context4.py - This will just add a motor function to the end of your gcode and use the same medthod to do multiple prints like in the regular ABP (copy and paste other gcode made from this script into replicatorG).
Thanks for all your help in advance!