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Nevermore Max Controller source code

❗NOTE: This repository is a proof-of-concept onlyand is not actively developed. Current efforts are being developed atnknotts/klipper-nevermore-max

This firmware is written for theRaspberry Pi Pico.

The firmware is written inCircuitPython.Download version 7.3 for the Pico

• Connect the Pi Pico USB to your laptop
• Ensure CircuitPython 7.3 is installed on the Pico.
• Copy the full contents of thenevermoremax/firmware folder to the root of the Pi Pico (volume nameCIRCUITPY)
• Anytimeboot.py is modified, power cycle the Pico for the changes to take effect.

A Python REPL and data connection are achieved over a single USB connection to the Pi Pico. Seeusb_cdc for more.

On Windows, each Serial is visible as a separate COM port. The ports will often be assigned consecutively, console first, but this is not always true.On Linux, the ports are typically /dev/ttyACM0 and /dev/ttyACM1. The console port will usually be first.On MacOS, the ports are typically /dev/cu.usbmodem<something>. The something varies based on the USB bus and port used. The console port will usually be first.

Theconsole port refers to the REPL/interactive port, and thedata port refers to the data/communcations port.

• python3 -m venv env
• source env/bin/activate (seevenv for Windows)
• pip3 install -r requirements_dev.txt
• python3 test_gui.py

From the drop down, select the desired serial port. Selecting a serial port will automatically connect.

To install this plugin, you need to this entire project directory file into theextrasfolder of klipper. Like:

/home/pi/klipper/klippy/extras/nevermore-max-controller

An alternative would be to clone this repo and run theinstall_klipper.sh script. Like:

cd /home/pigit clone https://github.com/nknotts/nevermore-max-controller.git./nevermore-max-controller/install_klipper.sh

It's safe to execute the install script multiple times.

More on this in theMoonraker Update Manager section.

It's possible to keep this extension up to date with the Moonraker'supdate manager byadding this configuration block to the "moonraker.conf" of your printer:

[update_manager nevermore_max_controller]type: git_repoorigin: https://github.com/nknotts/nevermore-max-controller.gitpath: ~/nevermore-max-controllerinstall_script: install_klipper.shmanaged_services: klipperprimary_branch: main

This requires this repository to be cloned into your home directory (e.g. /home/pi):

git clone https://github.com/nknotts/nevermore-max-controller.git

The install script assumes that Klipper is also installed in your home directory under"klipper":${HOME}/klipper.

☝️NOTE: If your Moonraker is not on a recent version, you may get an errorwith the "managed_services" line!

• VORON - great open source 3D printer hardware design and community
• Klipper - great open source 3D printer firmware
• Klipper Z Calibration - basis for install scripts
• Cookiecutter - project template
• audreyr/cookiecutter-pypackage - project template