This is a project I have been working for long time now but finally got a nice enough result. It's basically a polargraph/Makeangelo machine that uses those cheap 5V 28BYJ-48 stepper motors and a NodeMCU board with MicroPython running on it.
This machine is pretty freestyle. I don't think it will look like this for longer than a few weeks and the only part that is really tricky is the "gondola" (that one holding the pen). Query this big library of knowledge named internet for inspiration on how to build your own "polargraph", "makeangelo", "drawing machine" gondola / pen holder.
The best instructions are written in your heart and you can watch them in your dreams.
Flashing the flash-firmware
I love this expression. In fact, after you have
flashing the MicroPython firmware
(so hacker now) you just need to transfer the
main.py and just if you
Set the wifi configuration on
boot.py and the
port_config.py for the webrepl
Visit this Fabulous Machine Website to draw your ideas and get the machine instructions!
How to operate the machine
Make sure you have all the security equipment you will need, connect to your
ESP8266 through usb cable or webrepl (query how to do it on your favorite search
engine), and now you will can type
move(x, y) replacing
y by the
coordinates you want to move. Note that the origin (
0, 0) is where the pen is.
You can also define a variable called
path with an array of coordinates such as
[[10.0], [-5,5], [5,5]] and call
drawPath(path). It would look something like
# Move the pen to 100 units up and 50 right, for example move(100,50) # Define your path path = [[10.0], [-5,5], [5,5]] # Draw the path, duh drawPath(path)