AxiDraw MiniKit 2 & SE/A3 Notes

Hi Rupert, Yes, there is support for an external pause button.

The first set of three pins on the EBB control board above the three pins used for standard pen-lift servo control are, by default, configured to act as an alternate pause button input.

From back to front, those three pins are ground, +5 V out, and signal in. Your external button should be a normally-open button that gives no connection except when you press the button. Wire it from the front pin (signal in) to the back pin (ground), leaving the +5 V pin not connected to anything.

Kind regards, -Windell

https://github.com/evil-mad/EggBot/issues/8

bmaranville - I have created EBB Firmware v2.2.7, which includes a new command called "ES" for you. (E-Stop). Here is the hex file for v2.2.7 so you can update your EBB :
(https://github.com/evil-mad/EggBot/raw/master/EBB_firmware/Releases/app/EBF_v227.zip)
And here is the updated documentation for v2.2.7
(http://www.schmalzhaus.com/EBB/EBBCommands.html)

Please try it out, and see if it works for you.

AxiDraw-Processing

Some simple examples showing how one can control the AxiDraw, directly from within Processing.

AxiGen1: Draw a random walk where you click the mouse. This is a good starting point for making generative artwork on the AxiDraw.

AxiRT: Real-time drawing software for the AxiDraw; a derivative of https://github.com/evil-mad/robopaint-rt You can draw a sketch with your cursor, and the AxiDraw will draw it onto paper.

n = 7;
instructions = SubstitutionSystem[{
"X" -> {"Y", Pi/3, "X", Pi/3,"Y"},
"Y" -> {"X", -Pi/3, "Y", -Pi/3, "X"}
}, {"X"}, n];

Graphics[

{
Line[
AnglePath[Join[{0}, Select[Last[instructions], NumericQ]]]
],
{Red, Disk[{0,0}, 0.2]}
}
]

Python API For AxiDraw

AxiTurtle

An easy way to program AxiDraw and preview your drawing. Including turtle graphics commands!

The turtle starts in the upper left corner facing right. Angles: 0 is right, 1/4 is up, 1/2 is left, 3/4 is down

One subject that I’ve often thought appropriate for plotting are maps, and Michael’s topographic maps are elegant. Again, in addition to making drawings, he has provided his code for working with AWS terrain data as well.

If you have an object selected and you click a color in the bottom palette it will be the new fill color. Shift+Click picks a color and puts it to the stroke. It's written in the guidance text in the bottom.

"ES" — E Stop

Hi Rupert, The spring kit is included with the Brushless servo upgrade kit for AxiDraw ( http://emsl.us/953 ). They are not recommended except for use with an AxiDraw with the brushless upgrade, as the added power draw can potentially damage the control board without that upgrade.

Kind regards, -Windell

vpype is the Swiss-Army-knife command-line tool for plotter vector graphics. Here is what it can do:

AxiDraw MiniKit 2 & SE/A3 Notes & Links

See https://shop.evilmadscientist.com/908

AxiDraw-Processing

Python API For AxiDraw

AxiTurtle

"ES" — E Stop

SVG Generators & Resources

Essential Reading